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
Nasturtium (genus) the Latin "nasus tortus", meaning "twisted nose", in reference to the effect on the nasal passages of eating the plants. "Nasturtium" foliage is used as food by the caterpillars of certain Lepidoptera, including "Orthonama obstipata" (The Gem). One species, "Nasturtium gambellii", is a federally listed endangered species in the United States. The genus "Nasturtium" should not be confused with the flowering garden annual commonly known as nasturtium ("Tropaeolum majus"). Though not related, the leaves of the garden nasturtium also have a peppery taste. One database names 316 species. Nasturtium (genus) Nasturtium () is a genus of seven plant species in