Taxon Details
Cirsium fontinale var. obispoense
Chorro Creek bog thistle
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Taxon Summary:
Cirsium fontinale var. obispoense, commonly known as Chorro Creek bog thistle, is a perennial herb in the Asteraceae that is found only in California. It occurs within Chaparral, Cismontane woodland, Coastal scrub, and Valley and foothill grassland, growing at elevations from 35 to 385 meters. Cirsium fontinale var. obispoense is ranked 1B.2, Plants Rare, Threatened or Endangered in California and Elsewhere; Moderately threatened in California.|
Scientific Name: Cirsium fontinale (Greene) Jeps. var. obispoense J.T. Howell |
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Common Name: Chorro Creek bog thistle |
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| Family: | Asteraceae | |
| Element Code: | PDAST2E162 | |
| USDA Plants Symbol: | CIFOO | |
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Synonyms/Other Names: |
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| Name Status: |
JEF, FNA, POWO, IPNI, Tropicos |
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| CA Rare Plant Rank: | 1B.2 |
| Fed List: | FE (1994-12-15) |
| State List: | CE (1993-06-01) |
| Global Rank: | G2T2 |
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State Rank: |
S2 |
| Other Status: | SB_CalBG/RSABG; SB_SBBG |
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CRPR Changes: |
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| Add Date: | 1974-01-01 |
| Date Edited: | 2022-12-06 |
| Lifeform: perennial herb | ||||||||||||||
Blooming Period: Feb-Jul(Aug-Sep)
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Elevation:
35 - 385 meters 115 - 1265 feet |
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General Habitats:
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| Microhabitat Details: Drainages | ||||||||||||||
Microhabitat:
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Notes: Threatened by grazing, development, and proposed water diversions. Possibly threatened by foot traffic, and non-native plants. See Leaflets of Western Botany 2:71 (1938) for original description, and Bulletin of the Southern California Academy of Sciences 115(3):156-175 (2016) for status information. |
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Threats: |
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Taxonomy: |
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| Threat List Total: | 13 | |
| Total EOs | % of EOs | |
| EOs with Threat Listed: | 19 | 86 % |
| THREAT LIST: | ||
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| Foot traffic/trampling | 10 | 45% |
| Non-native plant impacts | 9 | 40% |
| Other | 8 | 36% |
| Grazing | 7 | 31% |
| Development | 5 | 22% |
| Erosion/runoff | 4 | 18% |
| Feral pigs | 2 | 9% |
| Agriculture | 2 | 9% |
| Road/trail construction/maint. | 2 | 9% |
| Surface water diversion | 2 | 9% |
| Biocides | 1 | 4% |
| Improper burning regime | 1 | 4% |
| Military operations | 1 | 4% |
| Total Occurrences: | 22 | ||||
| Element Occurrence Ranks: | |||||
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| A | B | C | D | X | U |
| 9 | 5 | 3 | 0 | 1 | 4 |
| Occurrence Status: | |||||
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| Historical >20 Years | 6 | ||||
| Recent <=20 Years | 16 | ||||
| Presence: | |||||
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| Presumed Extant | 21 | ||||
| Possibly Extirpated | 1 | ||||
| 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) San Luis Obispo (SLO) |
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Quads: Name (Quad Code) Atascadero (3512046), Cambria (3512151), Lopez Mtn. (3512035), Morro Bay North (3512047), Morro Bay South (3512037), Pebblestone Shut-in (3512161), Pismo Beach (3512026), San Luis Obispo (3512036) |
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Notes:
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Presumed Extant
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