Taxon Report
Cirsium andrewsii (Gray) Jeps.Franciscan thistle |
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Classification
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Scientific Name: |
Cirsium andrewsii (Gray) Jeps. |
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Common Name: |
Franciscan thistle |
| Family: | Asteraceae |
| Element Code: | PDAST2E050 |
| USDA Plants Symbol: | CIAN2 |
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Synonyms/Other Names: |
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Ecology and Life History
| Lifeform: | perennial herb |
| Blooming Period: Mar-Jul | Mar-Jul |
| Elevation: | 0-150 (0-490) |
| General Habitats: | Broadleafed upland forest, Coastal bluff scrub, Coastal prairie, Coastal scrub |
| Microhabitat: | Mesic, Serpentine (sometimes) |
| Microhabitat Details: |
Conservation Status
| CA Rare Plant Rank: | 1B.2 |
| Global Rank: | G3 |
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State Rank: |
S3 |
| State List: | None |
| Fed List: | None |
| Other Status: | SB_CalBG/RSABG |
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CRPR Changes: |
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Occurrence Data from the CNDDB
| Total Occurrences: | 31 |
| Element Occurrence Ranks: | |
| Excellent (A) | 3 |
| Good (B) | 11 |
| Fair (C) | 3 |
| Poor (D) | 0 |
| None (X) | 3 |
| Unknown (U) | 11 |
| California Endemic: True | |
| California Counties and Islands: Name (Code) | |
| Contra Costa (CCA), Marin (MRN), San Francisco (SFO), San Mateo (SMT), Sonoma (SON)(?) | |
| Quads: Name (Quad Code) | |
| Ano Nuevo (3712213), Bodega Head (3812331)(?), Briones Valley (3712282), Drakes Bay (3812218), Franklin Point (3712223)*, Inverness (3812217), Montara Mountain (3712254), Point Bonita (3712275), Point Reyes NE (3812227), San Francisco North (3712274), San Francisco South (3712264), Tomales (3812228), Valley Ford (3812238) | |
Threat List Data from the CNDDB
| Threat List Total: | 5 | |
| EOs with Threat Listed: | Total EOs | % of EOs |
| 12 | 39 % | |
| Non-native plant impacts | 9 | 29% |
| Grazing | 3 | 9% |
| Erosion/runoff | 2 | 6% |
| Foot traffic/trampling | 1 | 3% |
| Other | 1 | 3% |
Citation
California Native Plant Society, Rare Plant Program. 2025. Rare Plant Inventory (online edition, v9.5.1). Website https://www.rareplants.cnps.org [accessed 8 January 2025].