Taxon Details
Potentilla hickmanii
Hickman's cinquefoil
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Taxon Summary:
Potentilla hickmanii, commonly known as Hickman's cinquefoil, is a perennial herb in the Rosaceae that is found only in California. It occurs within Closed-cone coniferous forest, Coastal bluff scrub, Marshes and swamps (freshwater), and Meadows and seeps (vernally mesic), growing at elevations from 10 to 149 meters. Potentilla hickmanii is ranked 1B.1, Plants Rare, Threatened or Endangered in California and Elsewhere; Seriously threatened in California.|
Scientific Name: Potentilla hickmanii Eastw. |
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Common Name: Hickman's cinquefoil |
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| Family: | Rosaceae | |
| Element Code: | PDROS1B370 | |
| USDA Plants Symbol: | POHI5 | |
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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 (1998-08-12) |
| State List: | CE (1979-09-01) |
| Global Rank: | G1 |
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State Rank: |
S1 |
| Other Status: | SB_UCBG |
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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: Apr-Aug
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Elevation:
10 - 149 meters 35 - 490 feet |
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General Habitats:
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| Microhabitat Details: | ||||||||||||||
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Microhabitat:
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Notes: Seriously threatened by urbanization, recreational activities, non-native grasses, grazing, and the proposed Devil's Slide Bypass highway project. Collections from SON Co. are actually P. uliginosa. See Bulletin of the Torrey Botanical Club 29:77-78 (1902) for original description, and Fremontia 21(1):25-29 (1993) and 24(1):3-11 (1996) for species accounts. |
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Threats: |
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Taxonomy: |
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| Threat List Total: | 7 | |
| Total EOs | % of EOs | |
| EOs with Threat Listed: | 4 | 100 % |
| THREAT LIST: | ||
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| Foot traffic/trampling | 2 | 50% |
| Development | 2 | 50% |
| Erosion/runoff | 1 | 25% |
| Altered flood/tidal/hydrologic regime | 1 | 25% |
| Non-native plant impacts | 1 | 25% |
| Other | 1 | 25% |
| Recreational use (non-ORV) | 1 | 25% |
| Total Occurrences: | 4 | ||||
| Element Occurrence Ranks: | |||||
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| A | B | C | D | X | U |
| 0 | 1 | 1 | 0 | 2 | 0 |
| Occurrence Status: | |||||
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| Historical >20 Years | 3 | ||||
| Recent <=20 Years | 1 | ||||
| Presence: | |||||
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| Presumed Extant | 2 | ||||
| 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) Monterey (MNT), San Mateo (SMT) |
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Quads: Name (Quad Code) Montara Mountain (3712254), Monterey (3612158) |
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Notes:
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Presumed Extant
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