Utahs Noxious Weeds. Utahs Noxious Weeds: 28 Weeds Bermudagrass Cynodon dactylon *Black henbane Hyoscyamus niger Canada thistle Cirsium arvense Dalmatian.
Conium maculatum. Conium maculatum also known as poison hemlock or spotted hemlock is a member of the umbeliferae family of plants.
