Castilleja ambigua (Hook. & Arn.) T.I. Chuang & Heckard var. humboldtiensis (D.D. Keck) J.M. Egger
Humboldt bay owl's-clover
2022 Cynthia Adkisson 2021 Kipp Pow 2021 Kipp Pow 2020 Mary Ann Machi 2017 Lucinda Adamson 2016 Taylor McCracken 2017 Lucinda Adamson
Castilleja ambigua var. humboldtiensis is an annual herb that is native to California, and endemic (limited) to California.
California Rare Plant Rank: 1B.2 (rare, threatened, or endangered in CA and elsewhere).
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2022 Cynthia Adkisson:!2021 Kipp Pow:!2021 Kipp Pow:!2020 Mary Ann Machi:!2017 Lucinda Adamson:!2016 Taylor McCracken:!2017 Lucinda Adamson:!
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Suggested Citation
Calflora:
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:
https://www.calflora.org/(Accessed: 06/06/2023).