笔管菜为百合科植物玉竹Polygonatum Officinale All的根茎,又名女萎、青粘、竹节菜、山玉竹。多年生草本,地下根横走,黄白色,分节,有须根。茎单一,叶片色绿呈狭椭圆形。花腋生,花被筒状,白色。浆果球形。生在野林下或石隙间的阴湿处。全国大部分地区都有 Pen tube vegetables for the Polygonatum Polygonatum Polygonatum Officinale All rhizomes, also known as female wilting, green sticky, bamboo dish, mountain Yu bamboo. Perennial herb, underground root horizontal walk, yellow and white, the section, there are fibrous roots. Stems single, green leaves narrowly elliptic. Flowers axillary, perianth tube-shaped, white. Berry sphere. Born under the wild forest or the stone between the wet place. Most parts of the country have