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Humboldt Bay owl's-clover
Scientific Name: Castilleja ambigua ssp. humboldtiensis
Family: Scrophulariaceae
Category: Dicot
Growth: Forb/herb
Duration: Annual
Other Names:
Humboldt Bay Owl's Clover
Explore the fascinating world of the Humboldt Bay Owl's Clover, a unique plant found in specific regions of California.
Scientific Name and Nomenclature
- Accepted Scientific Name: Castilleja ambigua Hook. & Arn. ssp. humboldtensis (Keck) Chuang & Heckard
- Common Names: Humboldt Bay owl's clover, Humboldt Bay owl's-clover
- Family: Orobanchaceae (formerly Scrophulariaceae)
- Synonyms: Castilleja ambigua ssp. humboldtensis, Orthocarpus (mentioned but seems to be outdated classification)
Distribution and Habitat
- Endemic to California.
- Specifically found in the Humboldt Bay area and other Northern California regions.
- Grows in salt marshes and high marsh environments.
- Also found in coastal prairies and bluffs from Humboldt to Santa Barbara County.
Ecological Role
- Considered a threatened plant in Northern California.
- Its habitat is threatened by invasive species like Spartina (cordgrass).
- Part of a diverse plant community in the high marsh.
Interactions with Other Organisms
- Shares habitat with other rare plants like Point Reyes bird's beak.
- Provides habitat for the rare California red-legged frog.
- Observed alongside Lyngbye's sedge and eelgrass in some areas.
Further Information
- BISON Web Link: http://bison.usgs.ornl.gov/api/scientificName/Castilleja%20ambigua%20humboldtiensis
- ITIS Web Link: Castilleja ambigua ssp. humboldtiensis (Keck) Chuang & Heckard (TSN 524896)
- Garden Guides: Information on Humboldt Bay Owl's-clover and gardening.
- California Native Plant Society: Data on Humboldt Bay owl's clover.
- Humboldt Bay National Wildlife Refuge: Area where Humboldt Bay owl's clover is found.