羊食草, 草食羊....

Sheep-Eating Plant: How Does Puya Chilensis Trap And Eat Animals?

有草名普亞, 罕開花, 一開七日.

身有長刺, 羊觸刺, 困而餓死, 化為草之糧食.

南美印第安人見普亞, 放火燒殺, 使其不能傷其羊.