This plant is Aconitum, or monkshood.

这种植物叫做头，附子。

Called monkshood. The queen of poisons.

起效极快。

“What is the difference, Potter, between monkshood and wolfsbane? ”

“波，那你说说舟形头和头有什么区别？”

The most deadly plant at Alnwick will be things like monkshood or wolf's bane, both types of Aconitum.

阿尼克最致命的植物是附子草或，这两种植物都是头。