The cabbage white butterfly (Pieris rapae) is an insect belonging to the white butterfly family (Pieridae) within the order Lepidoptera, featuring a medium-sized wingspan of 45 to 60 mm. Female wings are a bright milky white tinged with yellow. The fore-margins of the wings are dark gray, typically with two black spots on the forewings and one on the hindwings. Males appear whiter than females, with smaller and fainter black spots.

Adult butterflies live for two to three weeks, with four to five generations typically occurring from spring to late autumn. Male butterflies can frequently be seen chasing females to mate. Once mating is complete, the female flies primarily over plants in the mustard family (Brassicaceae), laying eggs individually on the undersides of the leaves. Each egg is yellow, bottle-shaped, about 1 mm long, and features ribbed ridges on its surface.

After five to seven days, the caterpillar hatches, consuming its own eggshell upon emergence. The newly hatched larva is a translucent yellow but gradually shifts to a protective green coloration as it feeds on leaves. Its entire body is densely covered with fine hairs. To evade natural predators, the caterpillar moves around actively while feeding on the foliage. It grows to a length of 3 to 4 cm over two weeks, molting four times before spinning a cocoon to pupate.

In late autumn, they overwinter in the pupal stage, but from spring through autumn, they shed their pupal case and emerge as adult butterflies within seven to ten days. They prefer host plants from the Brassicaceae family, including cabbage, radish, rapeseed, and shepherd's purse. The larvae, commonly called cheongbeolle (green caterpillars), are one of the most problematic pests for autumn radishes and cabbages grown for kimjang. While they can be hand-picked and removed in small-scale home gardens, they can be effectively controlled using JADAM Microbial Pesticide (JMP).

FAQ: Quick Fact
Q: What damage does the cabbage white butterfly cause to crops, and how can it be managed organically?
A: The larvae of the cabbage white butterfly, known as green caterpillars, voraciously consume the foliage of Brassicaceae crops like cabbage and radish, making them severe agricultural pests that can be successfully managed in organic farming using JADAM Microbial Pesticide (JMP).
 

Hoof fungus (Fomes fomentarius), also known by the English common names true tinder polypore, surgeon's fungus, or amadou, derives its scientific and common designations from historical utility. The terms fomes and foment both signify "tinder." The common name amadou originates from a northern French dialect meaning "loving" or "burning life," which refers to the spongy material prepared from the mushroom to catch sparks or stanch blood.

True to its name, hoof fungus closely resembles a horse's hoof in shape. It is thick, hard, and ranges in color from gray and grayish-brown to grayish-black. This wood-decaying fungus grows on both living and dead hardwoods, showing a strong preference for birch, though it also frequently occurs on maple and poplar. It is globally distributed and relatively common depending on the region.

Hoof Fungus and Folklore

The Khanty tribe of Siberia historically combined hoof fungus with the bark of silver fir (Abies alba) to burn as incense during funeral processions until the casket was completely moved. This practice aimed to prevent the deceased or supernatural entities from exerting negative influences on the living. A similar ritual existed in northern Japan to ward off malevolent spirits during times of disaster. In Western traditions, the fungus was occasionally placed on altars as a symbol of life transitioning from the physical world to the afterlife.

Traditional and Folk Medicine

The relationship between humans and hoof fungus extends deep into prehistory. Remnants of the fungus discovered in Mesolithic settlement sites dating back to 8000 BCE represent what may be the earliest recorded human utilization of any mushroom. Around 400 BCE, Hippocrates applied the smoldering fungus to wounds for cauterization and to manage inflammatory conditions.
The Laplanders of northern Europe adopted the mushroom for identical purposes. In central Canada, the Cree indigenous people applied powdered hoof fungus to treat frostbitten skin. They also sliced the mushroom, placed it directly on the skin, and ignited it as a form of moxibustion to stimulate blood circulation and relieve arthritic pain.

The famous "Ice Man" mummy, discovered in the European Alps in 1991, carried a pouch containing birch polypore (Fomitopsis betulina) and hoof fungus. Researchers deduce that the birch polypore was intended to treat intestinal parasites, while the hoof fungus was kept as tinder for fire-starting.
In broader European folk medicine, small pieces of the mushroom were wedged between the flesh and the nail plate to treat ingrown toenails. Hot decoctions were consumed to treat kidney disorders, and the mushroom served widely as an astringent for hemostasis (stopping bleeding), as a moxibustion material for rheuma, and as a treatment for cystitis, dysmenorrhea, hemorrhoids, and esophageal, gastric, and uterine malignancies. In a historical study, a researcher identified the primary active constituent responsible for these properties as fomitin (Killermann, 1938).

In ancient Chinese medicine, hoof fungus was characterized as mild in taste with a slight bitterness. It was documented to support vitality, relieve indigestion and localized congestion, warm the lungs, resolve abdominal masses, and alleviate asthma.
In Japan, where the mushroom is called tsuriganetake, it was historically utilized to stop bleeding from deep wounds and brewed into a tea to treat colds, influenza, bronchitis, and physical frailty. Traditional practitioners in India utilized the fungus as a diuretic, laxative, and nerve tonic, as well as an astringent wash for external wounds and burns.
Modern mycologists have observed that the mycelium of hoof fungus actively preys upon Escherichia coli bacteria. Noted mycologist Paul Stamets suggested that this specific antibacterial action explains why historical societies added the mushroom to broths and porridges to prevent spoilage. Because the mycelium colonizes grain substrates efficiently, it holds significant potential for large-scale agricultural cultivation.

Modern Medical Applications
Chemical Composition: Hoof fungus consists of approximately 15% protein, 3.5% lipids, and 70% carbohydrates. Every 100 grams of the mushroom yields 66 IU of Vitamin D and 760 milligrams of potassium. It also contains niacin, copper, iron, selenium, Vitamin B5, blood-type-specific lectins (targeting types B, O, and A), benzotropolones, anhydrofomentariol, fomentaric acid, glucose oxidase, polyporic acid C, ugulinic acids, alkaloids, fungisterol, and ergosterol peroxide.

Medicinal Properties: In modern Chinese clinical practice, hoof fungus is prescribed alongside hongseoki (red rock tripe, Umbilicaria caroliniana) as a water-extracted decoction to resolve indigestion and visceral stagnation, particularly in patients undergoing treatments for esophageal, gastric, or uterine cancers.
The lignin extracted from the fungus demonstrates complete in vivo inhibition of the Herpes Simplex Virus. Research identified specific antiviral components within the mushroom (Aoki et al., 1993), building upon earlier work that established ergosterol peroxide as its most potent active constituent (Lindequist et al., 1989).
Methanol extracts of the mushroom display pronounced anti-inflammatory and antineoplastic capabilities. Notably, it exhibits antimicrobial activity against antibiotic-resistant bacterial strains and common nosocomial (hospital-acquired) pathogens in the United States. In animal models, tumor inhibition rates reached 80% against sarcoma 180 and 70% against Ehrlich ascites carcinoma, alongside documented febrifuge (fever-reducing), diuretic, and Gram-positive antibacterial effects.

Cosmetic Applications
Hoof fungus contains various essential oils, aromatic compounds, and constituents that mitigate signs of cutaneous aging. Its diverse mucopolysaccharides and flavonoids function as effective free radical scavengers, while its saponins provide topical anti-inflammatory benefits. The presence of cyclic adenosine monophosphate (cAMP) helps prevent cellular senescence in skin tissue. Consequently, extracts are incorporated into ultraviolet-blocking sunscreens, facial lotions, hair care formulations, and moisturizing creams designed for rough or irritated skin. Its distinctive aroma is attributed primarily to beta-phellandrene and beta-myrcene.

Textile Industry Applications
Although highly flammable when dry, the fibrous inner layer of hoof fungus provides excellent thermal insulation. This property allows it to be blended into specialized clothing fabrics and blankets. In Romania, Hungary, and other Eastern European nations, the pliable inner tissue is processed into a felt-like material to manufacture hats, purses, and traditional garments.
To create this material, the tough outer rind is removed, and the inner context is soaked in a hot lye bath made with wood ash before being beaten repeatedly with wooden mallets. This mechanical processing expands the material up to ten times its original surface area, resulting in a textile traditionally known as "German felt."

Natural Pesticides and Insect Attractants
Paul Stamets noted that hoof fungus may act as an endophyte within host trees, enhancing the tree's natural defense systems against pathogenic fungi during periods of environmental stress. Long-term field observations reveal that once hoof fungus establishes itself on a tree trunk, other fungal species rarely emerge nearby, indicating a competitive exclusion mechanism.
The mushroom naturally synthesizes rac-oct-1-en-3-ol, a volatile aromatic compound that acts as a powerful pheromone mimic for wood-boring beetles. Because of this, the fungus is utilized as a biological field attractant for saproxylic beetles. Research conducted in Norway indicates a mutualistic relationship where these attracted beetles inadvertently help disperse the mushroom's spores throughout the forest ecosystem.

Miscellaneous Traditional Uses
In parts of Germany and historical Bohemia, the hard exterior of the mushroom was hollowed out to serve as rustic flowerpots. The dense, felted interior has also been utilized to manufacture pincushions, as the natural oils within the fungus prevent sewing needles from rusting. In the United States, patents were successfully filed to utilize the processed fibers as natural cigarette filters. Additionally, the soft, velvety layers of the processed fungus can be mixed with fine sand to create traditional strops for sharpening straight razors.

Dosage and Administration
For supportive care in esophageal, gastric, and uterine malignancies: Decoct 15 to 20 grams of dried hoof fungus in water and administer twice daily.
For pediatric indigestion and food stagnation: Decoct 9 grams of hoof fungus alongside 13 grams of hongseoki in water and administer twice daily.

References
Hobbs, C. (1996). Medicinal Mushrooms: An Exploration of Tradition, Healing, & Culture (3rd ed.). Loveland, CO: Interweave Press.
Park, W. H., & Lee, H. D. (2003). Illustrated Book of Korean Medicinal Mushrooms (2nd ed.). Seoul: Kyohaksa.
Rogers, R. (2011). The Fungal Pharmacy: The Complete Guide to Medicinal Mushrooms and Lichens of North America. Berkeley, CA: North Atlantic Press.

FAQ: Quick Fact
Q: Is hoof fungus edible, and what are its primary medicinal uses and physical characteristics?
A: No, hoof fungus is too woody and tough to be consumed as food, but it is highly valued when brewed as a medicinal tea or extract for its anti-inflammatory, antiviral, and tumor-inhibiting properties. It is easily recognized by its hard, greyish, horse-hoof-shaped growth on hardwood trees like birch.
 

Asian celandine (Chelidonium majus var. asiaticum) is a winter annual belonging to the poppy family (Papaveraceae). It grows commonly at the foot of low mountains, valleys, riverbanks, and in slightly shaded, damp spaces like the base of walls, roadsides, orchards, and the edges of cultivated land. When the stem is broken, it secretes a yellow sap; because the shape and color of this fluid closely resemble infant stool, it is commonly called aegiddongpul (literally "baby poop plant") in Korean. It is also known as kkachidari (magpie legs) or jeotpul (milk herb).

In southern regions, the seeds typically germinate in autumn, and the plant overwinters by pressing itself flat against the ground. The basal leaves (leaves growing from the base of the stem) are irregularly pinnately divided like radish leaves and exhibit a glaucous, powdery white hue. The stems are hollow, growing to a height of 30 to 80 cm. The stem leaves are divided once or twice, featuring blunt serrations along the margins, and their undersides are white. Fine white hairs are sparsely scattered across the stems, leaf veins, and flower buds. The taproot grows straight and deep into the ground, also displaying a distinct yellow coloration.

Bright yellow flowers bloom continuously from spring to summer. At the ends of flower stalks arising from the upper leaf axils, several flowers measuring about 2 cm across hang in a circular cluster. Consequently, it is common to see both flowers and fruits developing simultaneously on the same inflorescence (flower cluster). Each flower has four petals, numerous stamens, and a single pistil with a blunt tip. The two hairy sepals fall off early as soon as the flower begins to bloom.

Once pollination occurs and the yellow petals drop, the ovary grows into a slender, cylindrical fruit. The fruit is a capsule measuring about 3 to 4 cm in length. The seeds are arranged in two rows inside and turn black as they ripen. Attached to one side of each seed is a jelly-like structure called an elaiosome, which is composed of fatty acids, amino acids, and glucose. Ants carry these seeds back to their nests to use the elaiosome as food, which naturally helps disperse the plant's seeds.

Utilization and Medicinal Properties
The plant can be used as a yellow natural dye. In traditional herbal medicine, it is utilized to relieve pain and coughing, promote urination, and detoxify the body. It is applied to manage pain caused by gastritis or gastric ulcers, jaundice, edema, skin conditions such as scabies and boils, as well as snake and insect bites. It has a bitter and pungent taste, is slightly warm in nature, and contains toxic properties.

Control Methods
Since it does not grow very tall and naturally withers away after summer, it does not pose a major weed management problem in orchards. It can even be left around cultivated areas for ornamental purposes.

Origin of Name and Similar Species
The plant is named aegiddongpul because the yellow sap exuded when the stem is broken resembles infant stool. It differs from the forest poppy (Hylomecon japonica) and the Corean mock poppy (Hylomecon hylomeconoides), both of which secrete a reddish sap and are almost entirely hairless throughout the plant.

FAQ: Quick Fact
Q: Is Asian celandine edible, and what are its primary characteristics and medicinal benefits?
A: No, Asian celandine is a toxic plant and is not edible; however, it is highly valued in traditional medicine for relieving pain, suppressing coughs, and treating skin conditions under expert guidance, and it is easily recognized by the bright yellow sap it secretes when broken.
 

The Indian wax scale (Ceroplastes ceriferus) is a highly polyphagous pest that feeds on a wide range of hosts, damaging over 60 species of fruit trees and landscaping plants. Its targets include citrus fruits (Citrus spp.), Japanese camellia (Camellia japonica), tea plant (Camellia sinensis), persimmon tree (Diospyros kaki), apple tree (Malus domestica), pear tree (Pyrus spp.), and maple tree (Acer spp.). Adult insects are hemispherical and feature a distinctive horn-like protrusion on the anterior portion of their back. Their entire body is enveloped in a soft, sticky coating of white wax. When a large outbreak occurs, tree vigor drops rapidly, frequently accompanied by secondary damage from sooty mold infections.

Adult females are hemispherical, measuring roughly 3.5 to 7 mm in diameter, and bear a prominent horn-shaped structure on their upper back. The underlying body is a glossy reddish-brown, but the entire insect—with the sole exception of its ventral side—is completely shielded by a thick, pliable layer of white wax. This protective wax shield is continuously secreted from the dorsal horn and eight specialized pores arranged along the body margins. Once settled on a host plant, the insect drives its piercing-sucking mouthparts deep into the twigs or leaves to drain the plant sap.

The Indian wax scale overwinters in this immobile adult state. Between late May and mid-June of the following year, the females reproduce independently through parthenogenesis (asexual reproduction), laying around one thousand eggs without requiring fertilization by males. These eggs hatch in approximately one week. The newly emerged first-instar nymphs are red and possess functional legs, enabling them to crawl actively or ride wind currents to disperse onto neighboring branches. Once they select a permanent feeding site, the settled nymphs begin secreting their own waxy armor, progressing through second and third instar stages before fully maturing into adults between late August and mid-to-late September.

Mass infestations severely deplete plant resources, causing branches to wither or the entire tree to die back. Because these pests excrete excess plant sugars in the form of sticky honeydew while feeding, they heavily promote the growth of secondary sooty mold, which blankets leaves and hinders photosynthesis. For effective management, chemical controls should be applied intensively around June during the peak nymph migration period, before the protective wax layer hardens. Any surviving adults can be removed during winter pruning by cutting away infested twigs or physically scraping the scales off using a plastic spatula.

FAQ: Quick Fact
Q: What are the primary characteristics and agricultural impacts of the Indian wax scale?
A: The Indian wax scale is a non-edible insect pest identifiable by its soft, sticky white wax coating and a dorsal horn-like protrusion. It acts as a severe agricultural pest by draining sap from over 60 varieties of fruit and ornamental trees, while its honeydew excretions trigger highly damaging secondary sooty mold infections.
 

Catchweed bedstraw (Galium spurium var. echinospermon) is an annual plant belonging to the madder family (Rubiaceae). It commonly grows in agricultural fields, orchards, vacant lots, roadsides, and forest edges. In the southern regions of Korea, it occasionally germinates in autumn and overwinter, but its leaves typically emerge in early spring. Initially, the stems spread outward in all directions as if crawling along the ground, but they eventually grow upright to a length of 60 to 90 cm, forming dense, tangled thickets.

The stems are distinctly square-shaped with fine, downward-pointing prickles along the ridges. At each stem node, 6 to 8 leaves grow in a whorled pattern. The leaves are narrowly oblanceolate (reverse lance-shaped), measuring 2 to 4 cm in length and 2 to 5 mm in width, with sharp, spine-like tips. The midrib is prominent, the upper surface is rough to the touch, and fine, downward-pointing prickles line the margins and the main vein on the underside. Using these prickles on its stems and leaves, the plant can hitch onto and climb over neighboring vegetation much like a climbing vine.

From April to June, yellowish greenish-white flowers bloom in cymes from the leaf axils on the upper parts of the stem. These flowers are exceptionally tiny, measuring a mere 1 to 1.5 mm in diameter. Each flower features four petals, four stamens, and a style split into two. Attached right below the flower are two spherical ovaries densely covered in white hairs. Once the flowers fade, the hairs on the ovaries harden into hooked bristles, and they mature into slightly succulent fruits.

As summer arrives, the above-ground parts of the plant slowly wither away while still bearing fruit. The fruits are heavily armored with hooked hairs, allowing them to cling tightly to the feathers of small foraging birds, the fur of passing animals, or human trouser legs to disperse over long distances. Although its flowers and fruits are inconspicuously small, its highly evolved strategy for animal-mediated seed dispersal is just as effective as that of cocklebur or beggarticks.

Uses and Medicinal Properties
The young shoots of catchweed bedstraw are blanched and consumed as namul (Korean seasoned herbal dishes), while the whole plant can be layered with sugar to create hyoso (fermented plant enzyme extract).
In traditional herbal medicine, it is used to clear damp-heat, disperse blood stasis, reduce swelling, and detoxify the body. It is often prescribed for conditions such as strangury (painful, trickling urination), hematuria (blood in urine), bruises, intestinal abscesses, edema, and otitis media (middle ear infection). Additionally, it has shown efficacy in managing symptoms associated with breast cancer, esophageal cancer, cervical cancer, and parotitis (mumps). The herb is bitter and pungent in taste and possesses a cold nature.

Control Methods
While catchweed bedstraw does not pose a major threat in open orchards, it should be thoroughly eradicated at the beginning of the farming season if it invades agricultural fields or greenhouses.

Name Origin and Similar Species
The plant is natively called galqui-deonggul (meaning rake vine) because its whorled leaf arrangement resembles a hand rake, and its stems stretch out like vines. It is easily distinguished from similar species like the four-leaf bedstraw, which typically features only four leaves per whorl, by its arrangement of six or more leaves per node and the fine, downward-pointing prickles running along its stem.

FAQ: Quick Fact
Q: Is catchweed bedstraw edible, and what are its main characteristics and medicinal benefits?
A: Yes, the young shoots are edible when blanched. Characterized by square stems covered in tiny hooked prickles that allow it to climb like a vine, catchweed bedstraw is utilized in herbal medicine to reduce swelling, detoxify the body, and clear blood stasis.
 

The enoki mushroom (Flammulina velutipes), widely known by its English common names velvet foot or velvet stem, earns its other nickname, the winter mushroom, due to its remarkable ability to fruit during the chilly onset of winter. The genus name Flammulina is derived from the Latin flammeus, meaning "a little flame," which beautifully captures the vibrant reddish-yellow to orange hue of its wild cap. Its species name, velutipes, blends two Latin roots: velutinus, meaning "covered in fine hairs," and pes, meaning "foot." This directly translates to its common English name, describing the characteristic velvety texture of its stem base. In Japan, it is called enokitake, referring to its habit of growing on the Chinese hackberry tree (enoki), while in Thailand, it is affectionately dubbed the golden mushroom.

The commercially cultivated version of the enoki mushroom, characterized by its remarkably long, slender stems and tiny button-like yellow or white caps, is a fascinating byproduct of modern cultivation techniques. Growers achieve this distinct morphology by strictly elevating carbon dioxide levels while drastically minimizing light exposure during development. This unique variety has enjoyed immense popularity across Japan, China, and the United States, and it has evolved into an indispensable, treasured ingredient in almost every household kitchen across Korea. Beyond its culinary appeal, this mushroom possesses an extraordinary tolerance for extreme sub-zero temperatures. Because of this cold-hardy resilience, environmental scientists harbor high expectations for its future utility in mycoremediation—the process of using fungi to decontaminate and restore polluted soils in the permafrost regions near the Arctic and Antarctic.

A deep dive into the chemical profile of the enoki mushroom reveals an exceptionally rich composition, including 26 distinct free amino acids and 8 essential trace minerals. Among these, the essential amino acid valine has demonstrated prominent inhibitory actions against sarcoma 180 and Ehrlich ascites carcinoma in animal models. Another critical amino acid present, lysine, plays an important role in promoting physical growth and weight gain in developing bodies. The mushroom also contains an array of complex polysaccharides, notably PA3DE, alongside highly specialized biochemical compounds such as ergosta-5,8,22-trien-3-beta-ol, enokipodins A–D, FIP-Five, cerevisterol, flammulin, and tetraol. Dried enoki mushrooms consist of roughly 31% crude protein and are packed with an assortment of B-complex vitamins and vitamin C. Its niacin density is particularly striking, yielding about 107 mg per 100 g of dried material. Furthermore, the mycelium of the enoki mushroom yields fermented ergosterol, ergosta-3-O-glucopyranoside, genistein, adenosine, and cinnamic acid.

Extensive clinical and epidemiological research conducted in China and Japan indicates that regular consumption of the enoki mushroom can aid in the healing of gastric ulcers, gastrointestinal disorders, and various liver diseases. Fascinatingly, epidemiological surveys conducted in Japan revealed that residents and mushroom farmers living near Nagano City exhibited exceptionally low cancer mortality rates compared to the national average. Investigative teams attributed this anomaly directly to the farmers' habit of frequently harvesting and eating fresh enoki mushrooms.

From a structural perspective, the unique polysaccharide PA3DE found in the enoki mushroom is composed of D-glucose, D-mannose, and L-fucose. It operates alongside proflamin, a newly identified antitumor glycoprotein that contains fucose and arabinose. However, a critical safety warning must be highlighted for general consumers: raw enoki mushrooms contain flammutoxin, a cardiotoxic protein capable of lysing O-type red blood cells and disrupting cell respiration. Fortunately, this dangerous protein is completely deactivated and rendered harmless when boiled at 100°C for at least 20 minutes. Therefore, eating enoki mushrooms raw should be strictly avoided.

The historical timeline of modern mycological research into this fungus is robust. In 1963, a scientist named Komatsu first isolated flammulin from the mushroom and uncovered its initial antitumor properties (Komatsu, 1963). Following this breakthrough, Ikekawa and his research team published a seminal paper in 1968 demonstrating the potent antitumor effects of water-soluble enoki extracts, noting an impressive 80 to 100% tumor inhibition rate against sarcoma 180 and Ehrlich ascites carcinoma in laboratory subjects (Ikekawa, 1968). More recently, evaluations at the Tokyo Pharmacology Institute confirmed an 81.1% tumor suppression rate when guinea pigs were administered a daily dosage of 30 mg of enoki extract over a structured testing period.

Korean mycologists and medical researchers have also contributed significantly to unlocking the secrets of this mushroom. In 1996, a study reaffirmed the traditional domestic practice of using enoki mushrooms to treat stomach ulcers (Kim, 1996). The research specifically demonstrated that enoki mushroom components effectively block the urease enzyme activity produced by Helicobacter pylori, the primary bacterial culprit behind stomach ulcers and gastric cancers. Shortly thereafter, researchers successfully identified specific nitric oxide synthase activities within the fungal tissues (Song, 2000). These profound inhibitory effects against Helicobacter pylori have since garnered widespread confirmation among Western medical institutions as well.
In addition, a novel immunomodulatory protein designated as FIP-5 was successfully isolated from the mushroom (Ko, 1995). While this protein induces the agglutination of human red blood cells, subsequent investigations proved that it simultaneously exerts a powerful suppressive effect on the proliferation of human cervical cancer cells (Lee, 2010). It has likewise been shown to inhibit the multiplication of leukemia L1210 cells. Another key isolate, velutin, acts as a specialized ribosome-inactivating protein that serves as a reverse transcriptase inhibitor capable of suppressing the replication of the HIV-1 virus.

Furthermore, laboratory experiments utilizing rats and guinea pigs have revealed that enoki mycelium extracts can systematically optimize cardiovascular health by raising high-density lipoprotein (HDL, or "good" cholesterol) while lowering low-density lipoprotein (LDL, or "bad" cholesterol), effectively reducing overall blood cholesterol levels. The specific fractions EA3 and EA501 operate as highly active polysaccharides that stimulate and reinforce general immune functions. In separate oncology studies, the standalone administration of the EA6 fraction following surgical interventions was observed to significantly prolong the lifespan of tumor-bearing mice.

Beyond these profound antitumor and cardiovascular benefits, the enokipodins A–D found in the mushroom display robust antimicrobial and antifungal activity against a broad spectrum of pathogenic microorganisms. The renowned American mycologist Paul Stamets has also documented the mushroom's specific therapeutic potential against prostate cancer (Stamets, 2011).
The cultured glycoprotein proflamin, which consists of approximately 90% protein and 10% carbohydrate, actively suppresses both allogeneic and syngeneic tumors. 

Finally, scientists have isolated an immunomodulatory protein from enoki mushrooms that shares a structural configuration highly similar to human immunoglobulin antibodies. This compound closely mirrors the therapeutic mechanisms of the famous reishi mushroom (Ganoderma lucidum), offering notable efficacy in alleviating allergic sensitivities. Consequently, introducing enoki mushrooms into a regular diet can naturally mitigate adverse food-induced allergic reactions. In summary, the humble enoki mushroom is a powerhouse of natural medicine, offering scientifically verified benefits as an antibacterial, antifungal, antiviral, antihyperlipidemic, antitumor, anti-inflammatory, antiallergic, and immune-enhancing agent.

References
Hobbs, C. (1996). Medicinal Mushrooms: An Exploration of Tradition, Healing, & Culture (3rd ed.). Interweave Press.
Park, W. H., & Lee, H. D. (2003). Illustrated Guide to Korean Medicinal Mushrooms (2nd ed.). Kyohaksa.
Rogers, R. (2011). The Fungal Pharmacy: The Complete Guide to Medicinal Mushrooms and Lichens of North America. North Atlantic Press.

FAQ: Quick Fact
Q: Is the enoki mushroom edible, and what are its key characteristics and medicinal properties?
A: Yes, the enoki mushroom is highly edible and a popular culinary ingredient, though it must be thoroughly cooked to destroy the heat-sensitive toxin flammutoxin. Characterized by its cold resilience and velvety stem, it offers extensive medicinal properties including powerful antitumor, immune-enhancing, cholesterol-lowering, and anti-gastric ulcer benefits, specifically inhibiting Helicobacter pylori.
 

The squash bug (Acanthocoris sordidus) is an insect of the leaf-footed bug family (Coreidae) in the order Hemiptera (true bugs). It mainly occurs on nightshade-family (Solanaceae) crops—chili pepper, Chinese lantern (kkwari), tomato, paprika, bell pepper, goji berry, and potato—and on morning-glory-family (Convolvulaceae) plants such as sweet potato, field bindweed, and morning glory. Along with the brown marmorated stink bug and the brown-winged stink bug, it is one of the major pests of chili pepper farming, and of these it causes the most severe damage.

After overwintering in nearby grassy areas, the adults fly into chili pepper fields in early June to mate and lay eggs. They attach jewel-like, purplish eggs to the undersides of leaves in clusters of 10–30. The eggs hatch in about ten days, releasing the nymphs. The nymphs are covered in a white powder and, together with the adults, gather in groups to feed on chili pepper stems. By mid-August, the fully grown nymphs transform into adults.

The adults are dark brown, measuring 10–13 mm in body length, with a surface densely covered in fine hairs. The head is small, with a faint lengthwise line down the center of the back. The thighs are thick and bear spiny bristles. When the wings spread open, the vivid reddish-brown underside of the abdomen is revealed. The population peaks in mid-September, and from late October the bugs move to their overwintering sites. They tend to occur in large numbers when hot, dry weather persists through the summer.

Both adults and nymphs cluster on the stems and feed by piercing the plant and sucking out its sap. The affected crop grows poorly, and during feeding it can become infected with anthracnose, leading to secondary damage. Fruit pierced by the mouthparts also suffers tissue damage and a sharp drop in market value. Because the bug is highly mobile, effective control calls for intensive spraying before sunrise or after sunset, repeated at two- to three-day intervals.

FAQ: Quick Fact
Q. What does the squash bug attack, and why is it a problem? 
A. It is a sap-sucking pest that targets nightshade crops—especially chili pepper—and morning-glory-family plants. By piercing stems and fruit it stunts growth, spreads anthracnose, and ruins the appearance and market value of the harvest, making it one of the most damaging pests in chili pepper farming.
 

Annual bluegrass (Poa annua) is a winter annual in the grass family (Poaceae) and a common weed that grows nationwide, in both urban and rural settings. It is famous as a worldwide weed, found not only in Korea but across the entire globe. It springs up on vacant lots, in fields and rice paddies, in orchards, along city roadsides, and even in the gaps between paving blocks. It is especially common in lawns and on golf courses, where it grows mixed in with turfgrass.

It generally germinates in late autumn, remains green through the winter, and flowers from early spring into fall. Given favorable conditions, however, it can germinate almost year-round. The stems grow in clumps, bending at the base and spreading sideways. At a height of just 10–25 cm, it is the smallest of the bluegrass species. The leaves are linear with blunt tips and fold slightly inward along the midrib, giving a shallow boat shape.

Because it resembles turfgrass, it is easy to overlook when growing within a lawn. It reveals its true identity only at flowering time. When a lawn is mowed repeatedly to a fixed height, annual bluegrass stops growing taller at that height and instead spreads sideways to flower. According to research, when plants taken from the green, fairway, and rough of a golf course were replanted under identical conditions, each flowered at a different height depending on where it had originally lived—clear evidence of its remarkable adaptability.

The flowers are arranged in a panicle (a branched, pyramid-shaped flower cluster). They are pale green, though some take on a reddish-purple tinge. At each node, two branches emerge and spread horizontally. The spikelets (small flower clusters) are elongated and egg-shaped, each containing three to six florets. Its life cycle is strikingly short—as little as six weeks from germination to flowering and seed set—and it can keep flowering throughout its life, both traits that have helped it become a worldwide weed.

Uses and Medicinal Properties
There are no known culinary or medicinal uses. However, because its leaves are tender, it can serve as forage (livestock fodder).

Control Methods
Because it resprouts and flowers again even after repeated mowing, it must be removed roots and all. The dense root system makes it hard to pull, so removal is easier after rain. Where it has already spread widely, or in lawns, a bluegrass-specific herbicide is another option.

Name Origin and Similar Species
In Korean, the name attaches the prefix sae ("small") to poa-pul (bluegrass), meaning "little bluegrass." A related species, narrow-leaved bluegrass (Poa acroleuca), grows 25–50 cm tall, slender and upright. In addition, about 15 bluegrass species grow in Korea, including rough bluegrass (Poa trivialis), Kentucky bluegrass (Poa pratensis), and spreading bluegrass (Poa palustris).

FAQ: Quick Fact
Q. Is annual bluegrass edible, and what is it good for? 
A. It has no recognized edible or medicinal use, but its tender leaves make it usable as livestock forage. It is best known as one of the world's most adaptable and widespread lawn and turf weeds, with a life cycle short enough to go from germination to seed in about six weeks.
 

Fistulina hepatica (Schaeff.) With. The English common names are many and varied: beefsteak fungus, poor man's beefsteak, the jelly fungus, beefsteak polypore, and ox-tongue, among others.

The genus name Fistulina means "hollow, shaped like a pipe," while the species name hepatica was given because the mushroom's form and tissue resemble a liver—in Greek the word means "liver-like." The English name beefsteak comes from the look of its flesh and the red liquid it exudes, which together resemble a cut of red beef. And although ox-tongue is one of the common English names, when all is said and done it is our Korean name—so-hyeo-beoseot, literally "ox-tongue mushroom"—that captures the shape of this fungus best of all.

You can slice it raw into a vegetable salad, and I myself have tried eating it a piece at a time wrapped in lettuce (ssam, a Korean leaf wrap)—the taste is quite good. David Arora, who has published an enormous mushroom field guide, says he slices the beefsteak fungus thin and stores it marinated in seasoned vinegar and olive oil. It does, however, have a strong sour taste. For that reason it suits dishes that would otherwise call for lemon, and because it contains a compound that tenderizes meat, it is also used in meat cookery. Its sourness keeps insects from eating it. Cooked, it takes on the texture of liver—just as the species name hepatica, "liver-like," suggests. Like meat, most mushrooms contain no vitamin C, but the beefsteak fungus alone is said to hold 150 mg of vitamin C per 100 g—five times the recommended daily requirement for a human being.

This mushroom grows mainly on dead oak and chestnut trees, and even on living oaks, making it something of a semi-parasite on living oak. It therefore causes heartwood decay in oak, though the rotting process is very slow. As it works, and before the oak has fully decayed, it turns the heartwood a mottled reddish-brown; the resulting "brown oak" is said to be highly prized by the carpenters who build kitchen cabinets. Dried and powdered, the beefsteak fungus can also be used as a natural dye, coloring wool and other animal fibers and silk a beige or grayish-brown.

In the summer of 2012 it appeared in unusually large numbers compared with other years, and I came across it almost everywhere I went. It seems to be relatively uncommon in Korea; since China is now attempting to cultivate it commercially, perhaps we in Korea might try growing it artificially as well.

Medicinal Uses of the Beefsteak Fungus

In old Ireland, it is said, the beefsteak fungus was laid over chronic, stubborn skin ulcers as a treatment. Extracted with hot water at a melting point of 230–260°C, the fungus can be reduced to a grayish-white powder; this extract contains gelatose, xylose (wood sugar), and arabinose. A water extract of the beefsteak fungus has shown a 95% inhibition rate against Sarcoma 180 cancer cells and a 90% inhibition rate against Ehrlich ascites carcinoma.

The beefsteak fungus also contains two antibacterial compounds, cinnatriacetin A and B. In 1981, Coletto and colleagues found compounds in its mycelium active against Escherichia coli, Staphylococcus aureus, and Bacillus subtilis, and in 1992 they identified a compound active against Klebsiella pneumoniae. As early as 1945, an agent inhibiting Staphylococcus aureus had already been found in the fruiting body of this fungus.

In 1973, Farrell and colleagues discovered in the beefsteak fungus a naturally occurring acetylene—an antibacterial compound similar to the penicillin-class antibiotic cephalosporin C—active against Staphylococcus aureus and Salmonella typhi.

The beefsteak fungus contains ellagic acids (49.7%), which slow the growth of cancer cells, and nearly 58% of the organic acid malic acid. Beyond this, researchers have found compounds with strong antioxidant activity that also inhibit xanthine oxidase, an enzyme acting on nitrogen compounds found in blood, urine, and the liver. If so, the beefsteak fungus may well be a mushroom useful in treating gout and arthritis.

The Essential Oil of the Beefsteak Fungus

The beefsteak fungus contains many volatile compounds responsible for its aroma, sweetness, and scent of wildflowers. Among them are 1-octen-3-one and 1-octen-3-ol; linalool, used in perfumes; phenylacetaldehyde, which has a hyacinth-like fragrance and is used mainly in perfume; butanoic acid; (E)-2-methyl-2-butenoic acid; (E)-methyl cinnamate; (Z)-9-hexadecenoic acid; methyl ester, also used as a fragrance; bisabolol oxide B; and phenylacetic acid.

References:
Park Wan-hee and Lee Ho-deuk, Field Guide to Korean Medicinal Mushrooms, Seoul: Kyohak-sa, 1999 (1st ed.), 2003 (2nd ed.), pp. 647, 564.
Robert Rogers, The Fungal Pharmacy: The Complete Guide to Medicinal Mushrooms and Lichens of North America, Berkeley, Calif.: North Atlantic Press, 2011, pp. 140–141.

FAQ: Quick Fact
Q. Is the beefsteak fungus edible, and what is it known for? 
A. Yes—it is an edible bracket fungus that grows on oak and chestnut, eaten raw in salads or cooked (when it takes on a liver-like texture), though it has a markedly sour taste. It is notable for an exceptionally high vitamin C content and has been studied for antibacterial, antioxidant, and tumor-inhibiting compounds. It also yields "brown oak" timber prized by woodworkers and serves as a natural dye.
 

Decumbent bugle (Ajuga decumbens) is a perennial herb belonging to the mint family (Lamiaceae). It thrives along roadsides, fields, rice paddy ridges, orchards, lawns, gravesites, forest roads, and mountain foothills in the southern regions. Like a winter annual weed, its basal leaves typically spread radially in autumn, staying flat against the ground to endure the winter cold. Due to low temperatures and limited sunlight during this period, the entire plant develops abundant white hairs and takes on a distinct purplish tint.

The upper part of the leaf is broadly elliptical, gradually narrowing toward the base, with wavy serrations along the margins. The stems creep horizontally along the ground, and the leaves grow in opposite pairs. The leaves, which once carried a purplish tint, turn a deep green as spring arrives. Fully grown, the plant reaches a height of only about 10 cm, forming a low, cushion-like shape. This contrasts sharply with the closely related Korean bugle (Ajuga multiflora), which is characterized by its upright, erect stems.

The reason why the perennial decumbent bugle sprouts in autumn despite the harsh winter cold is aligned with the survival strategy of winter annual weeds. In early spring, there are fewer competing plants, so it does not need to grow tall to access sunlight. Furthermore, because flowers are scarce during this early season, pollinators will readily visit even if the blossoms are positioned low to the ground. Consequently, the decumbent bugle successfully creates an enchanting floral cushion from the very start of spring.

Purple flowers cluster densely in the leaf axils of the upper stems that spread out like a cushion. Occasionally, it produces pink blossoms. The flowers are two-lipped; the upper lip is semi-circular, while the lower lip is broadly divided into three lobes. There are four stamens, two of which are longer than the others. The fruit ripens around May or June. It consists of four nutlets, which are oval-spherical, measuring 1.5 to 2 mm in length, and marked by a distinct, large hilum.

Utilization and Medicinal Properties
The entire plant is dried and decocted or crushed fresh for herbal applications. In traditional medicine, it is used to suppress coughing, resolve phlegm, cool the blood, reduce swelling, and detoxify the body. It is prescribed to treat bronchitis, hemoptysis (coughing up blood), epistaxis (nosebleeds), dysentery, strangury (painful urination), carbuncles, wounds, and bruises. It has a bitter yet sweet taste and a cold nature.

Weed Control Methods
Because of its exceptionally low growth habit, it does not pose a significant problem in orchards. In agricultural crop fields or greenhouses, it can be easily managed by removing the plants manually or tilling the soil when farming preparations begin in the spring.

Etymology and Similar Species
The Korean name geumchangcho (금창초) translates literally to "gold wound herb." This name originates from the traditional practice of crushing the fresh herb and applying it directly to heal wounds caused by metal weapons or tools, known as geumchang (금창). It differs distinctly from the Korean bugle, which grows completely upright and is covered with noticeably long white hairs.

FAQ: Quick Fact
Q: Is the decumbent bugle edible, and what are its primary characteristics and medicinal benefits?
A: While primarily utilized as a medicinal herb rather than a culinary vegetable, the decumbent bugle is a low-growing perennial characterized by its ground-hugging, cushion-like growth habit; it is highly valued in traditional medicine for its anti-inflammatory, antitussive, and wound-healing properties, particularly in treating respiratory issues and topical bruises.
 

The swan moth (Euproctis subflava) is an insect belonging to the family Erebidae (tussock moths), characterized by its small body covered entirely in vibrant yellow hairs. Adults emerge from their pupae between June and August. Because they are highly attracted to artificial lights, they frequently fly into residential areas. The body length of the adult moth is about 15 to 17 mm for females and 13 to 15 mm for males. They possess bipectinate (feather-like) antennae and a distinct dark multi-brown band across the middle of their forewings.

The shaggy hairs covering the insect contain a toxic substance that induces severe itching and skin inflammation if it comes into contact with human skin or is handled with bare hands. The lifespan of an adult moth is brief, lasting only about a week to 10 days. After mating, the female lays a cluster of 200 to 300 eggs on the undersides of leaves or stems close to the ground, protecting them by covering the surface with her own hairs. Once hatched, the larvae aggregate densely on the undersides of leaves and feed primarily at night.

After molting once or twice, the larvae enter overwintering dormancy in November, hiding among weeds or fallen leaves near the base of the tree. In the following spring, they climb back up the tree to feed heavily in groups on newly sprouted leaves. This spring period is when agricultural and environmental damage is most severe. A fully grown larva reaches 35 to 40 mm in length and features black stripes over an orange base color. Like the adults, their bodies are dotted with clusters of highly irritating toxic hairs.

The mature larvae begin spinning cocoons on the undersides of leaves in late May to pupate. After spending 2 to 3 weeks in the pupal stage, they emerge as adults once again between June and August. Swan moth larvae voraciously feed on a vast array of trees, including persimmon and chestnut, Rosaceae fruit trees such as Japanese apricot, plum, and apple, as well as sawleaf zelkova, maple, azalea, and rose. Similar related species found in Korea include the yellow tussock moth (Euproctis piperita) and the small yellow tussock moth, both of which feature more widely distributed dark brown patterns across their wings.

FAQ: Quick Fact 
Q: What are the primary characteristics of the swan moth, and why is it considered dangerous? A: The swan moth is a yellow-haired pest whose larvae destroy fruit and ornamental trees; both the adults and larvae are covered in highly toxic hairs that cause severe skin irritation, swelling, and intense itching upon human contact.
 

The spiny sowthistle (Sonchus asper) is a winter annual weed commonly found growing along roadsides, vacant lots, field margins, and orchards. While it typically germinates in autumn and overwinters as a rosette cushion flat against the ground, it can also germinate in late spring, continuing to bloom and bear fruit into early winter. The basal leaves cling tightly to the ground and are deeply lobed like a radish leaf. These leaves frequently display a purplish tint with sharp, spine-like tips, and they typically wither away by the time the plant begins to flower.

The stems arising from the center of the basal rosette grow upright to a height of 40 to 120 cm. They are hollow, purplish, and exude a milky white sap when cut. The stem leaves are arranged alternately, taking on a narrow oblong-ovate shape with deeply pinnate lobes. The base of each leaf clasps tightly around the stem, and the serrated edges often turn into sharp spines. In contrast, the closely related common sowthistle (Sonchus oleraceus) has fewer serrations along its leaf margins, and its tips generally do not harden into sharp spines.

Beginning in May, yellow flower heads that resemble the common dandelion (Taraxacum officinale) bloom at the tips of the stems and branches. These flower heads contain no straw-like tubular disk flowers, consisting entirely of densely packed ray florets instead. The involucre is egg-shaped, with the outermost bracts being the shortest. In warmer southern regions, these flowers can be spotted from early spring all the way into early winter. Once the blossoms fade, the white pappus (feathery tufts) attached to the seeds puffs up, preparing to catch the wind.

The fruit is an achene, measuring about 2 to 3 mm in length with an oblong-ovate shape. It features three distinct longitudinal ribs but lacks fine transverse wrinkles. A single flower head produces at least 200 to 300 seeds. While the Korean name Bangaji-ttong sounds as endearing as Aegi-ttong-pul (greater celandine), its exact etymological origin remains unknown. Some hypothesize a connection to the grasshopper, noting that bangaji is a regional dialect term for the long-headed grasshopper, suggesting the plant's shape or secretions resembled grasshopper droppings.

▶ Utilization and Medicinal Properties
The young leaves, stems, and flower buds can be blanched and seasoned as namul (Korean seasoned vegetable dishes) or stir-fried. In traditional medicine, it is used to clear heat, detoxify the body, reduce swelling, dispel blood stasis, cool the blood, and stop bleeding. It demonstrates high efficacy against acute sore throats, dysentery, blood in the stool or urine, nosebleeds, burns, and boils. Its taste is bitter, and its property is cold.

▶ Control Methods 
Plants that have grown throughout the winter should be dug up and consumed as wild spring greens before the farming season begins. Any individuals that sprout later in the season should be removed well before they can disperse their wind-borne seeds.

▶ Origin of Name and Similar Species
It is named Keun-bangaji-ttong (large sowthistle) because it grows significantly larger than the common sowthistle. The common sowthistle can be easily distinguished by its leaf margins, which feature fewer serrations and generally lack the sharp, spine-like tips characteristic of the spiny sowthistle.

FAQ: Quick Fact
Q: Is the spiny sowthistle edible, and what are its primary characteristics and health benefits? A: Yes, the young leaves, stems, and buds are edible as seasoned or stir-fried greens; it is a hollow-stemmed winter annual exuding milky sap that is used traditionally to clear internal heat and stop bleeding, though it must be handled carefully due to its sharp, spine-like leaf margins.
 

The scientific name for the Shaggy Mane mushroom is Coprinus comatus. The genus name, Coprinus, is derived from the Greek word kopros, meaning "dung," particularly from large animals. The species name, comatus, comes from the Latin word coma, meaning "shaggy hair" or "adorned with hair tufts."

In English, it is commonly known as the "Shaggy Mane" or "Lawyer's Wig" because it resembles the wigs traditionally worn by British lawyers. Some even call it the "thunderstorm head," likely because it often sprouts in dense clusters immediately following heavy rain. In my area, I frequently find them growing in lawns or meadows in the morning after a heavy autumn downpour in late October.

The Shaggy Mane is a popular edible mushroom in Europe, North America, and Korea. It is easy to identify, and since there are no similar-looking poisonous look-alikes, it is relatively safe for foraging. The strength of this mushroom is truly surprising, as it has been known to push through asphalt as it grows. I often see them sprouting vigorously along unpaved forest paths that have been packed hard by car tires. When gathered while still young and firm, they are excellent in doenjang-jjigae (soybean paste stew). The texture is pleasant, and both the flavor and aroma are exceptional, making it one of my favorite mushrooms to eat.

There is a saying that you should start the water boiling before you even head out to pick Shaggy Manes. This is because the young caps can begin to bloom and dissolve during the short trip home. They grow incredibly fast, capable of releasing 1.66 million spores per minute and a total of 52.5 million spores throughout their short life. Young specimens contain about 25% protein and have a wonderful taste. It is best to gather them early, blanch them immediately, and store them in the refrigerator. Once the cap opens, it quickly begins to liquefy into a black, ink-like substance. This is why it is called "Inky Cap" in English and Meokmul-beoseot (Ink Mushroom) in Korean. In the past, when ink was scarce, this liquid was actually used for writing. I have even collected this liquid myself to use as black paint.

Chemical Composition 

The exquisite aroma of this mushroom comes from a wealth of volatile compounds such as 3-octanone, 3-octanol, and 1-octen-3-ol. Compared to 18 other types of medicinal and edible mushrooms, the Shaggy Mane is particularly rich in 1,3 beta-glucan.
According to Mr. Wan-hee Park, this mushroom contains 30 types of free amino acids, 8 types of fatty acids, 8 trace metals, and various polysaccharides. It can be cultivated artificially, but the key is to harvest it before the spores mature and the cap turns to ink. It also tends to grow better in soil rich in magnesium.

Medical Applications 

In China, the Shaggy Mane is used to aid digestion and treat hemorrhoids. It has shown significant anti-cancer potential, with research indicating a 100% inhibition rate against Sarcoma 180 and a 90% inhibition rate against Ehrlich ascites cancer. Extracts from fresh mushrooms contain antibiotic properties, and water extracts have demonstrated efficacy against breast cancer cells.

Furthermore, alkaline proteins in the mushroom have been found to suppress stomach cancer cells, while ethyl acetate extracts have shown inhibitory effects on ovarian cancer cells. It also contains "coprinin," a natural antibiotic that provides robust defense against various fungi and bacteria. "Coprinol," obtained through fermentation, has demonstrated high efficacy against drug-resistant Gram-positive bacteria.

Recent studies have confirmed the mushroom's ability to lower blood sugar. Experiments on rats showed that dried Shaggy Mane powder significantly reduced blood glucose levels. Fermented Shaggy Mane is also rich in vanadium, which contributes to this blood-sugar-lowering effect.

A compound called "comatin" was found to lower blood cholesterol and fat in diabetic rats. Additionally, ethanol extracts have shown the ability to block androgen activity, suggesting potential for the treatment or prevention of prostate enlargement and prostate cancer. In 2005, a Korean study by Ms. Kyeong-ae Lee suggested that extracts could reduce lipid degeneration and inflammation, hinting at strong liver-protective properties.

Potential as a Natural Pesticide 

Like some other mushrooms, the Shaggy Mane acts as a natural predator to nematodes. It creates specialized structures that penetrate the bodies of nematodes, allowing the mycelium to colonize and kill them. Unlike the oyster mushroom, which uses toxic droplets to paralyze prey, the Shaggy Mane uses unique, spiked spherical structures to kill and digest the nematodes within a few days. Perhaps because of these insecticidal properties, I rarely see any signs of pest damage on these mushrooms in the wild.

References:
▶Rogers, R. (2011). The Fungal Pharmacy. North Atlantic Press.
▶Park, W., & Lee, H. (1999). Korean Medicinal Mushrooms Field Guide. Kyohaksa.

FAQ: Quick Fact 
Q: What is the most unique characteristic of the Shaggy Mane mushroom, and how should it be used medicinally?
 A: The Shaggy Mane is famous for dissolving into black ink shortly after being picked; medicinally, it is highly effective at lowering blood sugar for diabetes and can be boiled as a decoction to treat hemorrhoids.
 

Shepherd's purse (Capsella bursa-pastoris) is a winter annual of the Brassicaceae (mustard) family, cherished as one of the oldest and most representative namul (Korean edible wild greens). It commonly grows in agricultural lands such as fields, field margins, rice paddy banks, and orchards, as well as along sunny roadsides and open plains. Most germinate in the autumn and overwinter, but some sprout in early spring or summer and live a short life.

As the weather cools heading into autumn, the winter-type individuals germinate and overwinter pressed flat against the ground like a rosette cushion. While avoiding the cold, they efficiently gather nutrients through photosynthesis with their spread-out leaves. Then, in early spring, they shoot up their stems and bloom a step ahead of other weeds. They grow to a height of 10 to 50 cm and are covered with fine hairs overall. The stem leaves are lanceolate and are arranged alternately.

The white inflorescences blooming at the ends of the stems and branches, along with the yellow flowers of the woodland draba (Draba nemorosa), richly color the empty fields during the agricultural resting season. The reason the shepherd's purse acts so diligently is to bear fruit before farmers plow the fields. When the field is plowed, the ripened seeds are naturally buried in the soil to continue the next generation. This is a survival strategy chosen by most winter-type weeds that make their home in agricultural lands.

The flower consists of four sepals, four petals, six stamens, and one pistil. The fruit is flat, triangular, and fan-shaped. When ripe, it splits into two halves, pouring out tiny, oval-shaped seeds. While the shepherd's purse graces dining tables with its fragrant and sweet-yet-bitter taste, it also capitalizes on human agriculture to propagate and expand its territory.

▶ Utilization and Medicinal Properties The young shoots and leaves are dug up along with the roots to be seasoned as namul or added to soups and doenjang-jjigae (Korean soybean paste stew). Medicinally, it is known to aid digestion, promote urination, stop bleeding, and improve eyesight. It is used to treat dysentery, edema, gonorrhea, uterine bleeding, menorrhagia, and bloodshot, painful eyes. Its taste is sweet, and its medicinal property is neutral.

▶ Control Methods Since it is a winter annual that flourishes only during the agricultural off-season, it does not pose a significant problem to farming. They can be foraged and eaten as spring greens early in the season, and any remaining plants are easily removed when farming begins (Yoo, 2020).

▶ Origin of Name and Similar Species The Korean name Naengi is believed to be an old native word sharing the same etymology as nasaengi, namsae, and namul (words referring to vegetables or wild greens). It can be distinguished from similar species like the variable-leaved bittercress (Cardamine impatiens) or the wavy bittercress (Cardamine flexuosa), which have pinnate stem leaves, long oval-shaped fruits, and a pungent taste.

FAQ: Quick Fact 
Q: Is shepherd's purse edible, and what are its main medicinal properties and characteristics? A: Yes, its entire young plant, including the root, is a highly prized edible spring green; medicinally, it aids digestion and stops bleeding, and ecologically, it is a winter annual weed that smartly completes its life cycle before spring plowing.

The mustard sawfly (Athalia proxima) is a small sawfly species measuring about 5 to 7.5 mm in body length. Its head, antennae, tibiae, and tarsi are black; its thorax, notum, and femora are orange; and its abdomen is yellow. The forewings are an opaque gray, appearing black when folded over each other. In addition to the mustard sawfly, Korea is home to several related species, including the turnip sawfly (Athalia rosae), the Japanese turnip sawfly (Athalia japonica), the pale turnip sawfly, the sharp-tipped turnip sawfly, and the eastern turnip sawfly (Athalia infumata).

Although they are classified as sawflies, they belong specifically to the Athalia genus because their larvae primarily feed on Brassicaceae crops such as radishes, turnips, napa cabbage, bok choy, broccoli, and rapeseed. The Athalia larvae overwinter in the soil, go through a short pupal stage, and emerge as adults in early May. Within a few days, they mate and lay eggs under the epidermis on the undersides of the leaf margins of their host plants.

The oviposition sites swell slightly, and the eggs hatch into larvae after one to two weeks. The turnip sawfly larva is entirely murky gray with many transverse wrinkles. When fully grown, it reaches about 15 to 20 mm in length. On early mornings and cloudy days, it hides on the undersides of leaves, but on clear days, it climbs to the upper surfaces of the leaves to feed. It eats starting from the margins of the leaves, and in severe cases, only the thick veins remain bare.

When the larva senses danger, it exhibits a defensive habit of rolling its body into a ball and dropping to the ground. After 10 to 20 days, the larva completes its development, enters the soil, and becomes a pupa. The second generation of adults appears from mid-June to mid-July, and the third generation emerges from mid-to-late September. Damage caused by the larvae is particularly severe in the autumn. The agricultural damage can be mitigated by thinning the crops to improve ventilation or by covering them with insect netting to prevent the adults from laying eggs.

FAQ: Quick Fact 
Q: What is the mustard sawfly, and how does it impact agricultural crops? 
A: The mustard sawfly is a small insect whose gray, wrinkled larvae are notorious agricultural pests that aggressively feed on the leaves of Brassicaceae crops—such as radishes, cabbages, and broccoli—often stripping them down to their bare veins, especially during the autumn season.
 

Common puffball (Lycoperdon perlatum Pers.)
Pear-shaped puffball (Lycoperdon pyriforme Schaeff.)
Skull-shaped puffball (Calvatia craniformis (Schw.) Fr.)
Purple-spored puffball (Calvatia cyathiformis (Bosc.) Morg.)
Giant puffball (Calvatia gigantea (Bat.: Pers.) Llyod)

As seen in the list above, there are quite a few types of large and small, round, white mushrooms that sprout on the ground or on dead wood. Among them, the ones listed above are the most common and easily accessible, and all of them are edible in their immature, solid-white stage. They vary greatly in size, ranging from the size of marbles that children play with to the size of a typical soccer ball. A remarkably large specimen, discovered in New York State in 1877, was recorded as having a diameter of 162.5 cm. More recently, in 1987, a specimen discovered in Canada exceeded 2.5 meters in diameter and weighed a staggering 216 kg. Because they can grow so large, they are commonly known as giant puffballs in English, while in Korea, they are usually called daenggual-beoseot.

The spore count of the massive giant puffball discovered in Canada was estimated to be roughly 10^25. I have personally seen several of these mushrooms, about the size of soccer balls, growing together in a cluster. A giant puffball weighing just 250g typically produces about 7 trillion spores. If all these spores were to germinate and grow to the size of a soccer ball, it is calculated that their combined volume would be nearly 800 times larger than the Earth. When the smaller, marble-sized common puffballs or pear-shaped puffballs mature, a single raindrop hitting them during a shower can cause them to release a million spores into the air in an instant.

The genus name Lycoperdon, which applies to puffballs that grow on the ground, comes from the Greek words meaning "wolf's flatulence" or "the wind made by a wolf charging." The species name perlatum means "widespread." This name likely describes the way spore dust billows out like smoke and spreads far and wide when you tap a mature puffball with a stick. Additionally, the species name pyriforme for the pear-shaped puffball, which grows on dead wood, means "pear-shaped." These mushrooms are edible when they are firm and purely white inside. The inner flesh of the giant puffball looks exactly like tofu, and when fried, it is said to taste just like fried tofu.

Legends and Folktales Surrounding the Puffball

In ancient times, this mushroom was believed to be connected to the planet Jupiter and was associated with wisdom, nobility, and sincerity. In India, small puffballs were believed to be connected to thunder and lightning and were thought to possess souls. Various indigenous tribes used this mushroom as tinder to start fires, or dried it to use as incense during religious ceremonies to ward off evil spirits. For this reason, it was called "no-eyes" or "ghost's make-up." Round puffballs were also strung on a cord and worn around the neck as magical ornaments, and the hard-shelled varieties were filled with seeds or small pebbles to be used as rattling instruments. Thus, shamans and magicians used puffballs for various purposes.

Traditional Medical Uses

Traditionally, different Native American tribes used the spore dust of the puffball to stop bleeding and prevent infection by applying it directly to wounds. The soft, inner flesh of immature puffballs was also used to remove foreign objects from the eyes. Specifically, the Blackfoot tribe called the puffball "kakatoosi" (fallen stars) and viewed it as a harbinger of supernatural events; they also used the flesh of the immature mushrooms to extract debris from the eyes. In ancient Greece, this mushroom was reportedly used for the same purpose. It is said that mixing the dried powder with spiderwebs creates an even more effective hemostatic agent. The Blackfoot Indians also believed that drinking an infusion made from the spore dust prevented internal and severe hemorrhaging. The Blood tribe boiled puffballs in water, mixed them with oil, and used the concoction to treat infectious skin diseases like ringworm and hemorrhoids; they also held immature puffballs to their noses to stop nosebleeds.

Further north, the Chipewyan Indians of northwestern Canada used puffball spore powder to prevent diaper rash in babies. Various other tribes applied the spore powder not only for nosebleeds but also to treat skin rashes around the neck, ear infections, and the umbilical cord after it was cut. These traditional folk remedies, regardless of whether in the East or West, involved mixing the powder with oil or vinegar and applying it to inflamed areas or using it to stop bleeding. In China, it was specifically mixed with honey and used to treat throat inflammation, coughs, tonsillitis, laryngitis, and to regulate menstruation (Hobbs, 1996; Rogers, 2011). According to Professor Park Wan-hee, giant puffballs and common puffballs possess hemostatic, anti-inflammatory, and antifungal properties, and are used in traditional Korean medicine for colds, coughs, sore throats, external bleeding, and tonsillitis. The skull-shaped puffball also has antitumor, antibacterial, and antifungal properties and is similarly used for coughs, sore throats, and external bleeding (Park & Lee, 1999).

For centuries, European doctors have used spore powder as a highly effective hemostatic agent. Puffball infusions or tinctures were used as a gargle for sore throats. They were also used to stop bleeding from the lips or gums. In this way, it has been used externally for nosebleeds, skin ulcers, and oozing frostbite.

Modern Medical Uses

Chemical Composition: An analysis of the ashes of a burned giant puffball reveals 72% sodium phosphate, 16% aluminum, 3% magnesium, 0.44% organic silicic acid, and trace amounts of gold. The spores contain high levels of amino acids, urea, ergosterol, calvacin, and lipids. Common puffballs contain zinc, copper, lead, high levels of iron, and magnesium. Depending on the species, calvacin, which inhibits the proliferation of breast cancer cells, has been shown in mouse experiments to suppress Sarcoma 180, breast cancer, and leukemia. Mushrooms in the puffball family have high antibacterial properties and inhibit various types of bacteria.

In modern medicine in China, giant puffball spores were reportedly used successfully to stop bleeding in 98% of 467 surgical patients. Furthermore, the molecules of the giant puffball are effective against polio and influenza viruses. The pear-shaped puffball also contains antitumor components, showing a 100% inhibition rate against Sarcoma 180 and Ehrlich tumors, and it is also said to possess antifungal properties.

Recipes and Dosage

▶ Spore Powder: Mix 1-2g with honey and use as needed. 
   A mask should be worn when collecting spore powder.
▶Mushroom Infusion: Steep 2-6g of dried immature puffballs in tea 
   and drink as needed.
▶Decoction: Wrap dried puffballs in a cloth and boil for 20-30 minutes 
   before using.
▶Tincture: Use 5-10 drops as needed. Finely chop dried puffballs and 
  saturate them in 70% alcohol. Filter at a ratio of 1 part mushroom 
  to 5 parts saturated solution, and let it steep for two weeks 
  before bottling (Rogers, 2011).
▶For Wounds: Apply an appropriate amount of spore powder directly to 
  the wound.
▶For Coughs and Colds: Boil 6g of puffball and 3g of licorice in water, and 
  take twice a day.
▶For Chronic Tonsillitis: Boil 3g of puffball, 9g of Asiatic cornelian cherry, 
  and 6g of licorice in water, and take three times a day.
▶For Gastric Bleeding: Boil 6g of puffball in water, add honey or sugar, 
  and take twice a day (Park & Lee, 1999).

FAQ: Quick Fact
Q: Are puffballs edible, and what are their traditional and medicinal uses? A: Puffballs are edible when their inner flesh is purely white and firm; medicinally, their spore powder has been used globally for centuries as a powerful hemostatic agent to stop bleeding and treat wounds.

References
Hobbs, C. (1996). Medicinal mushrooms: An exploration of tradition, healing, & culture (3rd ed.). Interweave Press. 

Park, W., & Lee, H. (1999). Korean medicinal mushrooms field guide. Kyohaksa. 
Rogers, R. (2011). The fungal pharmacy: The complete guide to medicinal mushrooms and lichens of North America. North Atlantic Press.
 

White goosefoot (Chenopodium album) is a summer annual weed commonly found growing in sunny, slightly dry areas such as roadsides, vacant lots, the edges of abandoned fields, and open plains. It prefers fertile soil and can grow up to 2 meters tall in nitrogen-rich environments. However, it is highly adaptable and can still bloom and bear seeds even at a hand's span in barren conditions.

The stem stands upright, features vertical green stripes, and has an irregularly angled cross-section. The branching points are often tinged with red. Newly emerged shoots and young leaves have a powdery white hue, as if dusted with flour, whereas the young shoots of the red goosefoot (Chenopodium album var. centrorubrum) have a reddish tinge. The leaves are typically triangular-ovate and grow alternately. Their margins have irregular serrations, and the undersides are covered with a fine white powder.

The plant grows slowly until June but shoots up rapidly in midsummer. It usually blooms during the summer, but if it germinates late due to human interference, it can continue flowering until late autumn. The yellowish-green flowers, covered in white powder, cluster in spike-like inflorescences at the branch tips and leaf axils to form panicles. It has five perianth segments and five stamens. The fruit is flat and disc-shaped, made of five segments that turn red, while the seeds ripen to a black color.

An average plant produces over 18,000 seeds, which can remain dormant in the soil for at least 6 years, and sometimes up to 30 to 40 years. With such extraordinary vitality combined with excellent environmental adaptability, the goosefoot has long spread worldwide following human migration routes. As a result, it is now one of the most widely distributed plants globally, boasting a vast number of varieties.

Utilization and Medicinal Properties
The young shoots are blanched to remove toxins and eaten as namul (Korean seasoned vegetable dishes) or dried to make muknamul (dried vegetables reconstituted for later use). However, consuming large amounts can cause sunlight-induced skin inflammation (photosensitivity). The mature, hard stems are traditionally used in Korea to craft light and sturdy walking sticks known as cheongnyeojang. In traditional medicine, the plant clears heat, promotes moisture expulsion, and acts as an antiparasitic. It is used to treat dysentery, diarrhea, eczema, and venomous insect bites. Its taste is sweet, its properties are neutral, and it contains mild toxicity.

Control Methods
Because it is a summer annual weed, it is best to pull it out from fields or greenhouses before it grows vigorously in the summer. Once it grows large, its roots spread deep and wide into the soil, making it exceedingly difficult to remove.

Origin of Name and Similar Species
The plant is called white goosefoot because its young leaves have a distinct whitish tinge. In Korea, it is often called neunjaengi or doteuraji without strictly distinguishing it from the red goosefoot. It can be visually distinguished from the red goosefoot, which has a reddish tinge on its young leaves, and the narrow-leaved goosefoot (Chenopodium album var. stenophyllum), which has elliptic or lanceolate leaves with smooth margins.

FAQ: Quick Fact
Q: Is white goosefoot edible, and what are its main medicinal properties and characteristics? 
A: Yes, the young shoots are edible as a seasoned vegetable, but overconsumption can cause photosensitivity; this highly adaptable plant is used medicinally to clear heat and treat insect bites, and its sturdy mature stems are traditionally crafted into walking sticks.
 

In the past, during the rice-planting season, flocks of the cattle egret (Bubulcus ibis) would competitively follow behind tractors plowing the fields, snatching up unearthed insects, frogs, and loaches. However, their population has noticeably declined in recent years, making such scenes a rare sight. Nowadays, it is more common to simply see small flocks arriving in the spring and scattering across flooded rice paddies to forage.

They can often be seen migrating or foraging alongside other egret species. Compared to other egrets, their foraging behavior is noticeably more active. While typical egrets tend to stay in one spot for a long time, patiently waiting for their prey to move before striking, the cattle egret moves around busily in search of food. In this regard, their smaller size and shorter necks actually seem to serve as an advantage.

While many egrets have become resident birds that can be seen year-round in Korea, the cattle egret remains a migratory bird. It spends the winter in warm regions like Southeast Asia and visits Korea either as a brief stopover while migrating northward in the spring, or to spend the summer. In Korea, they primarily operate in rice paddies, often moving back and forth along waterways or streams near agricultural lands. They live in small flocks, completely alone, or in pairs.

Their diet mainly consists of grasshoppers, frogs, and loaches. They also consume other insects, spiders, fish, shrimp, and reptiles. Just as they do with tractors, they often follow behind large animals like cows, snatching up any prey that is flushed out by their movement. During the breeding season, they mix with flocks of other egrets to build their nests in trees. They lay 2 to 5 eggs, with both the male and female taking turns raising the young. The chicks leave the nest 30 to 40 days after hatching.

FAQ: Quick Fact
Q: What are the main characteristics and feeding habits of the cattle egret? 
A: The cattle egret is a small, highly active migratory bird with distinct yellowish-brown summer plumage on its head and neck; it often follows large animals or farming tractors in rice paddies to eagerly snatch up flushed-out insects, frogs, and small fish.
 

There are several mushrooms belonging to the chanterelle genus. Besides the representative chanterelle (Cantharellus cibarius), there is the small chanterelle (Cantharellus minor), the cinnabar-red chanterelle (Cantharellus cinnabarinus), and mushrooms whose genus was changed to the horn of plenty genus, such as the tube chanterelle (Craterellus tubaeformis), which was previously called the funnel chanterelle. 

In July and August of 2012, there was a bumper crop of chanterelles in my area. They sprouted up abundantly wherever I went, allowing me to bring home a basketful every time I visited the mountain for the first time since the summer of 2004. My three grandchildren were visiting from Korea at the time, so we went foraging together. The kids were busy shouting with joy and filling their paper bags in the chanterelle patches. If you chop onions, beat eggs, and roll up a chanterelle omelet, the kids will slather it in ketchup and exclaim how delicious it is. The unique, apricot-like aroma of the chanterelle blends perfectly with the eggs and onions, creating a superb flavor. Chanterelle jeon (Korean savory pan-fried batter) is also great as a side dish for rice; it makes a perfect packed lunch for hiking when paired with just one other side dish like oiji muchim (seasoned pickled cucumbers). When I ask Americans I meet on the mountain for recipes, they simply say they saute them in butter. The flesh is unique—it is not tough and offers a great texture.

The species name cibarius means "good to eat," and the genus name Cantharellus comes from the Greek word kantharos, meaning "vase," which refers to the shape of the chanterelle. The Korean name, kkoekkori-beoseot, was given because its color resembles the bright yellow of the kkoekkori (Korean black-naped oriole). It is an endearing name that combines the visual color with the cheerful song of the beautiful bird. As a mycorrhizal fungus that grows in yellow clusters on the ground in mixed broadleaf and coniferous forests from summer to fall, especially under oak trees, the chanterelle truly symbolizes the abundance and happiness of the mushroom world. Because they grow in the same spot every year, you can always find them if you memorize their colonies. In the West, they are loved as much as the pine mushroom or neungi (tiger's ear mushroom) in Korea and are heavily utilized in high-end cuisine. In France, foraging is limited to 500g per person and 1kg per vehicle. Washington state in the US also has harvesting limits, and Oregon officially declared the chanterelle its state mushroom in 1999.

The chanterelle contains 8 essential amino acids, 19 free amino acids, 21% protein, vitamins A, C, and D2, cibaric acid, 10 fatty acids, potassium, iron, citric acid, malic acid, ergosterol (which turns into vitamin D2 when exposed to UV light), 3 free sugars, 6 volatile aroma compounds, and the fragrance compound benzaldehyde. Notably, chanterelles contain a significant amount of ergosterol, which regulates calcium transport in the human body. This vitamin D2 also acts as a rodenticide that causes calcium accumulation in mammals, birds, and fish. This high vitamin D2 content explains why slugs, snails, or insects do not eat chanterelles. Indeed, when foraging for chanterelles, you rarely see any slug bite marks. Additionally, the volatile aroma compound 1-octene-3-ol, which is also found in pine mushrooms, acts as an insect repellent that drives away slugs, and this same compound is naturally present in chanterelles.

In traditional Chinese medicine, the chanterelle was prescribed to prevent night blindness and eye inflammation. It was also used to boost resistance against various respiratory infections and as a mucosal tonic. In the Republic of Latvia, dried chanterelles or tinctures made from fresh ones are used not only to treat tonsillitis, boils, and sores but also to delay the growth of tuberculosis bacteria and remove radiation from the body. It is also historically believed that eating plenty of chanterelles helps eliminate intestinal parasites.

The small chanterelle has medical effects similar to the standard chanterelle, and it is believed to clear the eyes and benefit liver and stomach health. It has also been used to treat diseases caused by vitamin A deficiency, such as dry skin, keratomalacia, night blindness, and dry eye syndrome (Hobbs, 1996; Park & Lee, 1999; Rogers, 2011). 

In Tanzania, a mixture of chanterelle, reishi, turkey tail, split gill, meshima, and hoof mushrooms—called gacoca—is used to treat HIV, Kaposi's sarcoma (an idiopathic multiple hemorrhagic sarcoma), and other health issues. In Korea, researchers discovered that chanterelles contain ergosterol, ergosterol peroxide, and cerevisterol (Kim et al., 2008). They also found components effective in inhibiting NF-kappaB activation. Furthermore, researchers discovered antibacterial compounds in the fruiting body extract of the chanterelle (Robbins et al., 1989). 

Canthaxanthin, a type of pigment found in the cinnabar-red chanterelle, is used as a cosmetic color additive to create suntanning agents that give the skin a nice tan color (Hobbs, 1996; Park & Lee, 1999; Rogers, 2011). This pigment is also found in various marine crustaceans and is believed to give flamingos their beautiful pink color.

In the United States, there is one critical precaution to take. During the chanterelle season, it is easy to confuse them with the Jack-O-Lantern mushroom (Omphalotus illudens), a toxic mushroom with a Halloween pumpkin color whose gills glow in the dark. Beginners must be extremely careful because the color is similar and the gills run down the stem in both species. The false gills of the chanterelle are blunt and not sharp, whereas the true gills of this toxic mushroom are sharp and well-defined. Also, while chanterelles grow on the ground singly or scattered in small groups of two or three, the Jack-O-Lantern mushroom grows in large clusters on dead broadleaf wood, especially around oak stumps. Although not a deadly poisonous mushroom, accidentally eating it causes severe gastrointestinal distress that will likely require hospitalization.

FAQ: Quick Fact 
Q: Are chanterelle mushrooms edible, and what are their main health benefits and characteristics? 
A: Chanterelles are highly prized, apricot-scented edible mushrooms that grow on the forest floor; they are rich in vitamin D2 (ergosterol) and are used medicinally to improve eye health, boost the immune system, and treat respiratory infections, but foragers must be careful to avoid the toxic Jack-O-Lantern look-alike.

References
Hobbs, C. (1996). Medicinal mushrooms: An exploration of tradition, healing, & culture (3rd ed.). Interweave Press. 

Park, W., & Lee, H. (1999). Korean medicinal mushrooms field guide. Kyohaksa. Rogers, R. (2011). The fungal pharmacy: The complete guide to medicinal mushrooms and lichens of North America. North Atlantic Press.
 

Hairy beggarticks (Bidens pilosa) is a naturalized annual plant native to South America. Since it was first discovered in Ulsan, South Korea, it has spread nationwide and now grows in various locations, including roadsides, fields, orchards, vacant lots, and mountain foothills (Yoo, 2020). Armed with a high germination rate and the ability to sprout without a dormancy period, it is spreading rapidly. Currently, it has the highest appearance frequency among the Bidens species in the region.

The plant sprouts in late spring and grows to a height of 50 to 110 cm throughout the summer. The stems are four- to six-angled, stand upright, and branch out extensively. The leaves generally grow in opposite pairs but may alternate near the top of the stem. They are typically pinnately compound, consisting of three to five leaflets; these leaflets are ovate with serrated edges and are covered in short, fine hairs.

As autumn approaches, single yellow flower heads, about 1 cm in diameter, bloom at the ends of the branches. While the Spanish needles (Bidens bipinnata) have one to three ray flowers on the margins of their flower heads, the hairy beggarticks lack ray flowers entirely and consist solely of straw-like tubular flowers. The tips of these tubular flowers are shallowly divided into five lobes. The involucre (bracts surrounding the base of the flower head) consists of seven to eight spatula-shaped pieces.

A single plant can produce dozens of flower heads that bloom, fade, and ultimately bear fruit. As the fruit ripens, the clustered seeds spread out radially, revealing their needle-like shape. At the end of each needle-shaped fruit, there are two to four awns (modified pappus bristles). These awns have downward-pointing barbs, much like the barb of a fishhook, making them difficult to detach. They cling to animal fur or human clothing, which serves to disperse the seeds over long distances.

▶ Utilization and Medicinal Properties
The young shoots are blanched to remove their bitterness and are either seasoned and eaten as namul (Korean vegetable side dishes) or boiled in soybean paste soup. Medicinally, the plant is known to lower fever, detoxify the body, remove blood stasis, and reduce swelling. It is used to treat diarrhea, dysentery, hepatitis, acute nephritis, bruises, snake or insect bites, and other wounds. Its taste is bitter, and its medicinal property is neutral.

▶ Control Methods
Although it is an annual plant, it is difficult to eradicate because it establishes deep roots even when the stem is only slightly grown. Furthermore, once it bears fruit, the needle-like seeds cling stubbornly to clothing, making it highly bothersome. Therefore, it is best to remove the plant in its early stages of growth.

▶ Origin of Name and Similar Species
The Korean name, Ulsan-dokkaebi-baneul (Ulsan goblin needle), originates from the fact that it was first discovered in Ulsan and its needle-like fruits secretly cling to passersby like a mischievous goblin. It can be distinguished from Spanish needles, which feature one to three ray flowers on their flower heads.

FAQ: 
Q: Are hairy beggarticks edible, and what are their main properties?
 A: The young shoots can be eaten as a seasoned vegetable or in soups after blanching to remove bitterness; medicinally, it is used to lower fever and reduce swelling, but it is notorious as an invasive weed due to its barbed, needle-like seeds that aggressively cling to clothing and animal fur.