Any of several poisonous perennial herbs of the genus Aconitum, especially A.lycoctonum, having broad, rounded leaves, elongate racemes, and purple - lilac flowers.

• 乌头一种乌头属的有毒多年生草，尤指狼毒乌头，有宽且圆的叶子、修长的串状花序和淡紫红色的花