2010 Julie A. Kierstead 2021 Steve Conger 2021 Jamie Spielmann 2021 Steve Conger 2023 David Strauch 2023 David Strauch 2021 Steve Conger 2006 Heath McAllister 2017 David popp 2010 Julie A. Kierstead 2018 Ryan Hall 2021 Julie A. Kierstead 2021 Julie A. Kierstead 2009 Julie Kierstead Nelson
Veratrum californicum is a perennial herb that is native to California, and also found elsewhere in western North America.
[Wikipedia] Range, Habitat, Description, Varieties, Teratogenic effects: Veratrum californicum (California corn lily, white or California false hellebore) is an extremely poisonous plant native to western North America, including the Sierra Nevada and Rocky Mountains, as far north as Washington and as far south as Durango; depending on latitude, it grows from near sea level to as high as 11,000 feet. It grows 1 to 2 meters tall, with an erect, unbranched, heavily leafy stem resembling a cornstalk. It prefers quite moist soil, and can cover large areas in dense stands near streams or in wet meadows. Many inch-wide flowers cluster along the often-branched top of the stout stem; they have 6 white tepals, a green center, 6 stamens, and a 3 branched pistil. The buds are tight green spheres. The heavily veined, bright green leaves can be more than a foot long.
Veratrum californicum displays mast seeding; populations bloom and seed little in most years, but in occasional years bloom and seed heavily in synchrony. The species usually blooms during midsummer from July to August.
Veratrum californicum var. californicum from Washington to Durango
Veratrum californicum var. caudatum (A.Heller) C.L.Hitchc. Idaho, Washington, Oregon, N California
It is a source of jervine, muldamine and cyclopamine, teratogens which can cause prolonged gestation associated with birth defects such as holoprosencephaly and cyclopia in animals such as sheep, horses, and other mammals that graze upon it. These substances inhibit the hedgehog signaling pathway. (contributed by Mary Ann Machi)
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2010 Julie A. Kierstead:!2021 Steve Conger:!2021 Jamie Spielmann:!2021 Steve Conger:!2023 David Strauch:!2023 David Strauch:!2021 Steve Conger:!2006 Heath McAllister:!2017 David popp:!2010 Julie A. Kierstead:!2018 Ryan Hall:!2021 Julie A. Kierstead:!2021 Julie A. Kierstead:!2009 Julie Kierstead Nelson:!
Information on California plants for education, research and conservation,
with data contributed by
public and private institutions and individuals.
[web application]. 2023. Berkeley, California:The Calflora Database
[a non-profit organization].Available: