Hemlock
Several plants are called hemlock. Poison hemlock is a common European plant, Conium[?] maculatum, family Apiaceae (formerly Umbelliferae); it is toxic, containing the alkaloid Coniine[?]. Water hemlock is Cicuta[?] virosa, another deadly plant in the Parsley family. It is not sure which of above two toxic hemlocks the Greek philosopher Socrates was executed with. Quite different from these is Western hemlock, Tsuga[?] heterophylla. This is a North American coniferous tree, particularly common in the Pacific Northwest.
It is not sure which of above two toxic hemlocks the Greek philosopher Socrates was executed with.
Quite different from these is