biennial herb, 20-40 cm high, whole-plant was mao-ying. stout - gen. stem-health or sparse resentment, upright, branching. leaf-shaped leaves key, 4-6 cm long and 5-12 mm wide, gradually narrow the base of growth stems, top round blunt or sharp convex; small leaf stem, leaf-shaped linear engines. false round umbrella cone inflorescence; pedicel slim, 4-10 mm long, no hair; calyx bell-shaped, 4-6 mm long, hairless, e teeth small, blunt tip; rui stalk almost no male and female; petal small, light green, linear inverted lanceolate, the whole geopolitical, claws without hair; vice corolla na ; stamen-exposed.