Species Details
Chorizanthe cuspidata var. cuspidata
San Francisco Bay spineflower
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Scientific Name: Chorizanthe cuspidata Wats. var. cuspidata |
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Common Name: San Francisco Bay spineflower |
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| Family: | Polygonaceae | |
| Element Code: | PDPGN04081 | |
| USDA Plants Symbol: | CHCUC | |
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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: | G2T1 |
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State Rank: |
S1 |
| Other Status: | SB_CalBG/RSABG |
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CRPR Changes: |
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| Add Date: | 1994-01-01 |
| Date Edited: | 2022-12-06 |
| Lifeform: annual herb | ||||||||||||||
Blooming Period: Apr-Jul(Aug)
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Elevation:
3 - 215 meters 10 - 705 feet |
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General Habitats:
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| Microhabitat Details: | ||||||||||||||
Microhabitat:
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Notes: Plant may occur in SCL Co.; need more information. Threatened by non-native plants. Closely related to C. pungens. Some plants from Pt. Reyes, MRN Co. (485B, 485C) to Bodega Head, SON Co. (502C, 503D) probably intermediate to var. villosa. See C. cuspidata in The Jepson Manual. See Proceedings of the Davenport Academy of Natural Sciences 4:60 (1884) for original description, and Phytologia 66(2):127-129 (1989) for taxonomic treatment. |
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Threats: |
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Taxonomy: |
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| Threat List Total: | 6 | |
| Total EOs | % of EOs | |
| EOs with Threat Listed: | 5 | 29 % |
| THREAT LIST: | ||
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| Non-native plant impacts | 3 | 17% |
| Development | 2 | 11% |
| Foot traffic/trampling | 2 | 11% |
| Other | 2 | 11% |
| Road/trail construction/maint. | 1 | 5% |
| ORV activity | 1 | 5% |
| Total Occurrences: | 17 | ||||
| Element Occurrence Ranks: | |||||
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| A | B | C | D | X | U |
| 0 | 0 | 3 | 0 | 2 | 12 |
| Occurrence Status: | |||||
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| Historical >20 Years | 15 | ||||
| Recent <=20 Years | 2 | ||||
| Presence: | |||||
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| Presumed Extant | 15 | ||||
| Possibly Extirpated | 1 | ||||
| Presumed Extirpated | 1 | ||||
| California Endemic: | |||||||||||||
| California Island: | |||||||||||||
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States: Name (Code) California (CA) |
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California Counties and Islands: Name (Code) Alameda (ALA)*, Marin (MRN), San Francisco (SFO), San Mateo (SMT), Sonoma (SON)? |
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Quads: Name (Quad Code) Bodega Head (3812331)?, Montara Mountain (3712254), Oakland West (3712273)*, San Francisco North (3712274), San Francisco South (3712264), San Rafael (3712285), Tomales (3812228)? |
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Notes:
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Presumed Extant
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