Habitat: Cultivated in gardens.
English: Forking Larkspur, Larkspur, Lark's Claw, Knight's Spur.Action: Parasiticide. A tincture is used to destroy lice in hair.
The toxicity of the seeds is due to diterpene alkaloids (delcosine, delso- line, consolidine). Delsonine and an- thranoyllycoctonine are amorphous alkaloids.The alkaloids lead to bradycardia, lowering of blood pressure, and cardiac arrest. Also, they have a central paralyzing and curare-like effect on the respiratory system. (German Commission E.)Entire plant, including roots and seeds, is used topically. Not to be used on abraded skin.Seeds contain 1.01-1.06% alkaloids and 28.7% of a fixed oil. A digly- coside pigment, delphonin and kaem- pferol have been isolated from the flowers.