麦冬别名麦冬门、沿阶草,为百合科多年生草本植物,一般株高15～40厘米。地下茎匍匐平卧,节上有白色鳞片。麦冬平行脉明显,叶丛生,草质深绿色,长线形,先端尖。根的前端或中部常膨大成为白色肉质块根,呈纺锤形、圆筒形或椭圆形,须根坚韧而多。总状花序,顶生,直立,花茎自叶丛中抽出,花一般呈淡紫色,罕见白色;果实为浆果球,成熟时期果实颜色 Ophiopogon Ophiopogon alias, along the step grass, liliaceous perennial herbs, the general plant height of 15 to 40 cm. Underground stem prostrate supine, section has white scales. Ophiopogon significant parallel lines, leaf clusters, grass dark green, long linear, apex sharp. The root of the front or middle often swollen into white succulent roots, was spindle-shaped, cylindrical or oval, fibrous and tenacious and more. Racemes, terminal, erect, stems removed from the foliage, flowers generally lavender, rare white; fruit is a berry ball, fruit color at maturity