Chestnut which are mildly poisonous to humans. Nor should they be confused with water chestnut, which are tubers of an aquatic herbaceous plant in the sedge family Cyperaceae. Other trees commonly mistaken for chestnut trees are the chestnut oak ("Quercus prinus") and the American beech ("Fagus grandifolia"), both of which are also in the Fagaceae. The name "chestnut" is derived from an earlier English term "chesten nut", which descends from the Old French word "chastain" (Modern French, "châtaigne"). The French word in turn derives from Latin "Castanea" (also the scientific name of the tree), which traces to the Ancient Greek word
Luzula sylvatica fruit is a 3-valved capsule containing three oblong seeds. Each seed is indistinctly reticulate, often with a caruncle (a basal or apical appendage); seeds tend to germinate close to their parent plant. "Luzula sylvatica" has a wide distribution, and is native to Europe (the European temperate element of flora ) and southwest Asia - including the British Isles where "L. sylvatica" populations are widespread stable, apart from a decline in central and south east England. There is one record of "L. sylvatica" from Washington State, United States of America. Usually growing in partial to full shade, "Luzula sylvatica" tends to