Taxon Details
Arctostaphylos pacifica
Pacific manzanita
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Taxon Summary:
Arctostaphylos pacifica, commonly known as Pacific manzanita, is a evergreen shrub in the Ericaceae that is found only in California. It occurs within Chaparral, and Coastal scrub, growing at elevations from 330 to 330 meters. Arctostaphylos pacifica is ranked 1B.1, Plants Rare, Threatened or Endangered in California and Elsewhere; Seriously threatened in California.|
Scientific Name: Arctostaphylos pacifica Roof |
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Common Name: Pacific manzanita |
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| Family: | Ericaceae | |
| Element Code: | PDERI040Z0 | |
| USDA Plants Symbol: | ARPA19 | |
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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: | None |
| State List: | CE |
| Global Rank: | G1 |
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State Rank: |
S1 |
| Other Status: | SB_UCSC |
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CRPR Changes: |
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| Add Date: | 1974-01-01 |
| Date Edited: | 2022-12-06 |
| Lifeform: evergreen shrub | ||||||||||||||
Blooming Period: Feb-Apr
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Elevation:
330 - 330 meters 1085 - 1085 feet |
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General Habitats:
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| Microhabitat Details: | ||||||||||||||
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Microhabitat:
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Notes: Known only from San Bruno Mountain in San Mateo County. Potentially threatened by alteration of fire regimes and recreational activities. Once considered a hybrid between A. glandulosa and A. uva-ursi. See A. uva-ursi in The Jepson Manual (1993). See Leaflets of Western Botany IX (13-14): 217 (1962) for original description. |
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Threats: |
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Taxonomy: |
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| Threat List Total: | 4 | |
| Total EOs | % of EOs | |
| EOs with Threat Listed: | 1 | 100 % |
| THREAT LIST: | ||
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| Improper burning regime | 1 | 100% |
| Non-native plant impacts | 1 | 100% |
| ORV activity | 1 | 100% |
| Other | 1 | 100% |
| Total Occurrences: | 1 | ||||
| Element Occurrence Ranks: | |||||
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| A | B | C | D | X | U |
| 0 | 0 | 1 | 0 | 0 | 0 |
| Occurrence Status: | |||||
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| Historical >20 Years | 0 | ||||
| Recent <=20 Years | 1 | ||||
| Presence: | |||||
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| Presumed Extant | 1 | ||||
| Possibly Extirpated | 0 | ||||
| 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 Mateo (SMT) |
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Quads: Name (Quad Code) San Francisco South (3712264) |
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Notes:
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Presumed Extant
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