Over 80 species in North America; most found natively west of the Mississipi River, although cultivated as an ornamental across the U.S. Two major groups: Dwarf or low, which live on lowland slopes and grasslands and grow to less than 3 feet tall; tall la
Unless there is a lack of suitable forage, horses typically do not consume toxic amounts of larkspur. The toxicity of the plant may vary depending on seasonal changes and field conditions; as the plant matures, it generally becomes less toxic. The alkaloids in the plant cause neuromuscular paralysis; clinical effects include constipation, colic, increased salivation, muscle tremors, stiffness, weakness, recumbency, and convulsions. Cardiac failure may occur, as can death from respiratory paralysis.
Toxic to Dogs
Toxic to Cats
Toxic to Horses