Answer: sabadilla

AnswerCrossword Clue
SABADILLAMexican plant.
sabadillaA preparation of these seeds, used as an agricultural insecticide and in medicines
sabadillaA Mexican plant of the lily family, whose seeds contain veratrine
sabadilla(Spanish) a liliaceous plant, yielding the alkaloid veratrine also CEBADILLA, CEVADILLA