Any of various, usually poisonous perennial herbs of the genus Aconitum, having tuberous roots, palmately lobed leaves, blue or white flowers with large hoodlike upper sepals, and an aggregate of follicles.

• 乌头一种毛茛属通常有毒的多年生草本植物，有管状的根，掌状裂叶，蓝色或白色的冠状萼片的花，和骨突的集合