Even small amounts of water hemlock can cause acute poisoning in animals and humans, leading to symptoms such as muscle twitching, rapid pulse, tremors, convulsions, and seizures. In some cases, ...

Once a flourishing part of extensive riparian habitats in southeastern Arizona and northern Sonora, Mexico, the Huachuca water umbel has been reduced to a handful of discontinuous clumps in a handful ...

Once a flourishing part of extensive riparian habitats in southeastern Arizona and northern Sonora, Mexico, the Huachuca water umbel has been reduced to a handful of discontinuous clumps in a handful ...