萹蓄别名：大萹蓄、鸟蓼、扁竹、竹节草、猪牙草、道生草。为蓼科蓼属、一年生或多年生草本植物。高１０～５０厘米。植物有白色粉霜，茎平卧地上或斜上伸展，接近直立，基部分枝，绿色，具明显沟纹，无毛，基部圆柱形，幼枝具棱角。单叶互生，几无柄；叶片窄长椭圆形或披针形 萹 Anonymous names: Large 萹 savings, Polygonatum, Bian Bamboo, Slub grass, pigs tooth grass, road grass. Polygonaceae Polygonum, annual or perennial herb. High 10 to 50 cm. Plants have white powder frost, stems lying on or oblique upward extension, nearly vertical, base branchlets, green, with obvious grooves, glabrous, base cylindrical, young branches with angular. Leaves alternate, few sessile; leaf blade narrowly oblong or lanceolate