Taxon  Report   1674 
Castilleja ambigua  Hook. & Arn.  ssp. humboldtiensis  (Keck) Chuang & Heckard  (not an active name)
Humboldt bay owl's clover
Castilleja ambigua ssp. humboldtiensis
© 2005 Doreen L. Smith
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Castilleja ambigua ssp. humboldtiensis
© 2005 Doreen L. Smith
Castilleja ambigua ssp. humboldtiensis
© 2000 Doreen L. Smith
Castilleja ambigua ssp. humboldtiensis, a dicot, is an annual herb (hemiparasitic) that is native to California and is endemic (limited) to California.
CNPS Rare Plant Rank: [1B.2] (rare, threatened, or endangered in CA and elsewhere).   8th Edition

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Castilleja ambigua ssp. humboldtiensis
© 2002 California Native Plant Society
Genus: Castilleja
Parent Record Castilleja ambigua
Coastal Salt Marsh, wetland-riparian
Habitat: salt-marsh, coastal
Wetlands: Occurs usually in wetlands, occasionally in non wetlands
Distribution by County 

Add an Observation of  Castilleja ambigua ssp. humboldtiensis

Name Status:
Accepted by TJM2 + PLANTS + JM93
CNPS accepted name: Castilleja ambigua var. humboldtiensis
Alternate Names:
(according to)

TJM2 + PLANTS: Orthocarpus castillejoides var. humboldtiensis
NOTE: Castilleja ambigua ssp. humboldtiensis is not an active name in the Calflora species table.
More information about  Castilleja ambigua ssp. humboldtiensis
Nursery / seed vendor availability from CNPLX
Commercial availability unknown.
Landscaping information from Calscape
Photos on CalPhotos / Google Images
Jepson eFlora

Records from the Consortium of California Herbaria

Original Publication citation (ITIS)


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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, including the Consortium of California Herbaria.
[web application]. 2018. Berkeley, California: The Calflora Database [a non-profit organization].
Available:   (Accessed: Feb 21, 2018).

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