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
Golfodulcean poison frog of comparatively large size for a poison dart frog, the Golfodulcean poison frog can store a large amount of poison in its skin. Captive examples lack the toxin, which suggests they do not manufacture the poison themselves, but instead acquire it from a species of insect or other small invertebrate on which they feed. Scientists have not determined the batrachotoxin source for any species of the genus "Phyllobates", although toxic birds from New Guinea likely get batrachotoxin from a small beetle of the family Melyridae. "P. vittatus" is a fairly large poison frog, reaching a length of 3.5 cm in