Species Details
Castilleja ambigua var. humboldtiensis
Humboldt Bay owl's-clover
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©2017 Steve Matson |
©2017 Steve Matson |
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Scientific Name: Castilleja ambigua (Hook. & Arn.) T.I. Chuang & Heckard var. humboldtiensis (D.D. Keck) J.M. Egger |
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Common Name: Humboldt Bay owl's-clover |
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| Family: | Orobanchaceae | |
| Element Code: | PDSCR0D402 | |
| USDA Plants Symbol: | ||
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Synonyms/Other Names: |
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| CA Rare Plant Rank: | 1B.2 |
| Fed List: | None |
| State List: | None |
| Global Rank: | G4T2 |
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State Rank: |
S2 |
| Other Status: | BLM_S; SB_UCBG |
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CRPR Changes: |
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| Add Date: | 1974-01-01 |
| Date Edited: | 2022-12-06 |
| Lifeform: annual herb (hemiparasitic) | ||||||||||||||
Blooming Period: Apr-Aug
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Elevation:
0 - 3 meters 0 - 10 feet |
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General Habitats:
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| Microhabitat Details: | ||||||||||||||
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Microhabitat:
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Notes: Threatened by coastal development and non-native plants. See C. ambigua ssp. humboldtiensis in TJM 2. See Proceedings of the American Academy of Arts and Sciences IV 16:536 (1927) for original description, Phytologia 90(1):63-82 (2008) for revised nomenclature, and Madroño 45(4):326 for distribution information. |
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Threats: |
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Taxonomy: |
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| Threat List Total: | 12 | |
| Total EOs | % of EOs | |
| EOs with Threat Listed: | 17 | 55 % |
| THREAT LIST: | ||
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| Development | 7 | 22% |
| Foot traffic/trampling | 6 | 19% |
| Non-native plant impacts | 4 | 12% |
| Other | 4 | 12% |
| Grazing | 3 | 9% |
| Altered flood/tidal/hydrologic regime | 3 | 9% |
| Agriculture | 2 | 6% |
| Road/trail construction/maint. | 2 | 6% |
| Waterway bank protection/maintenance | 2 | 6% |
| Surface water diversion | 1 | 3% |
| Recreational use (non-ORV) | 1 | 3% |
| ORV activity | 1 | 3% |
| Total Occurrences: | 31 | ||||
| Element Occurrence Ranks: | |||||
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| A | B | C | D | X | U |
| 5 | 11 | 4 | 0 | 0 | 11 |
| Occurrence Status: | |||||
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| Historical >20 Years | 18 | ||||
| Recent <=20 Years | 13 | ||||
| Presence: | |||||
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| Presumed Extant | 31 | ||||
| Possibly Extirpated | 0 | ||||
| Presumed Extirpated | 0 | ||||
| California Endemic: | |||||||||||||
| California Island: | |||||||||||||
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States: Name (Code) California (CA) |
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California Counties and Islands: Name (Code) Humboldt (HUM), Marin (MRN), Mendocino (MEN) |
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Quads: Name (Quad Code) Arcata North (4012481), Arcata South (4012471), Cannibal Island (4012463), Eureka (4012472), Ferndale (4012453), Fields Landing (4012462), Inverness (3812217), Mendocino (3912337), Point Arena (3812386), Rodgers Peak (4112421), Tomales (3812228), Trinidad (4112412), Tyee City (4012482) |
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Notes:
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Presumed Extant
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