[wikipedia] Distribution, Habitat: Distribution and habitat
It is native to northeastern California and adjacent sections of Oregon, where it grows in sagebrush and wet, open habitat in scrub, forest, and woodland. Once thought to be extremely rare and vulnerable, the plant is actually locally common in areas where the soil has been recently disturbed, allowing a probably large seed bank to germinate.
Despite its annual population sometimes running into the millions, the plant is threatened when large-scale disturbances occur. (contributed by Mary Ann Machi)
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James T. Vale and CNPS:!2001 Steve Schoenig:!2006 Dean Wm. Taylor:!2016 David popp:!2015 Sierra Pacific Industries:!2016 David popp:!2023 Sierra Pacific Industries:!
Information on California plants for education, research and conservation,
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[web application]. 2023. Berkeley, California:The Calflora Database
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