Cicuta may be confused with a number of other edible and poisonous plants. The common name hemlock may also be confused with poison hemlock ("Conium maculatum"), or with the Hemlock tree. Water hemlock is considered one of North America's most toxic plants, being highly poisonous to humans. Three members of the genus contain a toxin named cicutoxin which causes central nervous system stimulatory effects including seizures following ingestion. Medical treatment of poisoning may include the use of activated charcoal to decrease gastrointestinal absorption of the toxic principle along with supportive care including anticonvulsant drugs such as a benzodiazepine. High doses of
Felicia (genus) wait for insects to wander into their grasp. Usually nearly all florets set seed, the involucre will open outward when ripe, and the wind will carry away the easily detaching cypselas, thanks to the hairy pappus. The semi-parasitic plant "Thesium namaquense", also called poison bush, may infect at least two of the species, "F. filifolia" and "F. muricata", and when these "Felicia's" are browsed repeatedly by the same animal, this may cause poisoning, particularly in sheep. Felicia (genus) Felicia is a genus of small shrubs, perennial or annual herbaceous plants, with 85 known species, that is assigned to the daisy