蒣

xú:* 古书上说的一种草。 shú:* 古同"稌"，薯蓣。一种草本植物，根圆柱形，含淀粉和蛋白质，可食。亦称"山药"

(translated) xú: A type of grass mentioned in ancient books; shú: ancient form of "稌"，*shuyu*, yam; a type of herbaceous plant with cylindrical roots, containing starch and protein, edible; also called "yam"