Taxon Details
Clarkia speciosa ssp. immaculata
Pismo clarkia
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Aaron Schusteff |
Aaron Schusteff |
Taxon Summary:
Clarkia speciosa ssp. immaculata, commonly known as Pismo clarkia, is a annual herb in the Onagraceae that is found only in California. It occurs within Chaparral (margins, openings), Cismontane woodland, and Valley and foothill grassland, growing at elevations from 25 to 185 meters. Clarkia speciosa ssp. immaculata is ranked 1B.1, Plants Rare, Threatened or Endangered in California and Elsewhere; Seriously threatened in California.|
Scientific Name: Clarkia speciosa Lewis & Lewis ssp. immaculata Lewis & Lewis |
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Common Name: Pismo clarkia |
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| Family: | Onagraceae | |
| Element Code: | PDONA05111 | |
| USDA Plants Symbol: | CLSPI | |
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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.1 |
| Fed List: | FE (1994-12-15) |
| State List: | CR (1978-11-01) |
| Global Rank: | G4T1 |
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State Rank: |
S1 |
| Other Status: | SB_CalBG/RSABG; SB_SBBG |
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CRPR Changes: |
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| Add Date: | 1980-01-01 |
| Date Edited: | 2025-03-05 |
| Lifeform: annual herb | ||||||||||||||
Blooming Period: May-Jul
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Elevation:
25 - 185 meters 80 - 605 feet |
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General Habitats:
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| Microhabitat Details: | ||||||||||||||
Microhabitat:
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| Threat List Total: | 12 | |
| Total EOs | % of EOs | |
| EOs with Threat Listed: | 21 | 81 % |
| THREAT LIST: | ||
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| Development | 17 | 65% |
| Road/trail construction/maint. | 6 | 23% |
| Wood cutting or brush clearing | 6 | 23% |
| Non-native plant impacts | 5 | 19% |
| Grazing | 4 | 15% |
| Foot traffic/trampling | 3 | 11% |
| Biocides | 1 | 3% |
| Erosion/runoff | 1 | 3% |
| Mining | 1 | 3% |
| ORV activity | 1 | 3% |
| Other | 1 | 3% |
| Vandalism/dumping/litter | 1 | 3% |
| Total Occurrences: | 26 | ||||
| Element Occurrence Ranks: | |||||
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| A | B | C | D | X | U |
| 2 | 8 | 3 | 1 | 5 | 7 |
| Occurrence Status: | |||||
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| Historical >20 Years | 15 | ||||
| Recent <=20 Years | 11 | ||||
| Presence: | |||||
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| Presumed Extant | 21 | ||||
| Possibly Extirpated | 4 | ||||
| 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) San Luis Obispo (SLO) |
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Quads: Name (Quad Code) Arroyo Grande NE (3512025), Morro Bay South (3512037), Oceano (3512015), Pismo Beach (3512026) |
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Notes:
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Presumed Extant
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