毒狗草
Dogbane \Dog"bane`\, n. [Said to be poisonous to dogs. Cf. {Apocynaceous}.] (Bot.) A small genus of perennial herbaceous plants, with poisonous milky juice, bearing slender pods pods in pairs.
dogbane n : any of several poisonous perennial plants of the genus Apocynum having acrid milky juice and bell-shaped white or pink flowers and a very bitter root