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Bolboschoenus yagara is a species of flowering plant in the sedge family Cyperaceae. It is a perennial clonal herb, 0.8 to 1.3 meters (2 ft 7 in to 4 ft 3 in) tall, and develops underground rhizomes that terminate in spherical or ellipsoid tubers that are up to 3–4 centimeters (1.2–1.6 in) in diameter. It is able to propagate asexually through the tubers, as well as sexually by seeds.
Bolboschoenus yagara is found in wetlands, swamps, and other wet habitats. Unlike B. maritimus, Bolboschoenus yagara is a glycophyte. In experiments comparing the species to three other Bolboschoenus species (Bolboschoenus maritimus, Bolboschoenus laticarpus, and Bolboschoenus planiculmis), Bolboschoenus yagara was found to be the most sensitive to changes in nutrient supply and salt concentration, where increased concentrations caused a decrease in biomass, shoot number, fertility. In the dormant tuber stage, it is able to survive long-term high water levels. Bolboschoenus yagara is able to survive in both mesotrophic and eutrophic conditions.
Bolboschoenus yagara tubers, known as jing sanleng (Mandarin: 荊三稜), are used in traditional Chinese medicine to treat a number of ailments such as hyperemesis gravidarum, amenorrhea, and inflammatory-related conditions. Previous studies have identified a number of metabolites from the tubers of Bolboschoenus yagara that are theorized to have anti-inflammatory, anti-oxidant, and other properties, although these claims are speculative and their effectiveness has not been demonstrated in humans.
Caldwell's Clubrush · Tuberous Bulrush · Sea Club-Rush · Marsh Club Rush · New England Bulrush · Flat Stalk Bulrush · Sturdy bulrush · Tuberous Bulrush · Bolboschoenus fluviatilis
Text excerpted from the Wikipedia article Bolboschoenus yagara by its contributors, under CC BY-SA 4.0; the excerpts are shared under the same licence.
Life form, climate and native range: World Checklist of Vascular Plants, Royal Botanic Gardens, Kew (CC BY 3.0), reformatted; see Plants of the World Online.
