Taxon Details
Arctostaphylos pallida
pallid manzanita
View Report Copy Link Calflora eFlora CCH CalPhotos iNaturalist
Neal Kramer |
Neal Kramer |
Neal Kramer |
Taxon Summary:
Arctostaphylos pallida, commonly known as pallid manzanita, is a perennial evergreen shrub in the Ericaceae that is found only in California. It occurs within Broadleafed upland forest, Chaparral, Cismontane woodland, Closed-cone coniferous forest, and Coastal scrub, growing at elevations from 185 to 465 meters. Arctostaphylos pallida is ranked 1B.1, Plants Rare, Threatened or Endangered in California and Elsewhere; Seriously threatened in California.|
Scientific Name: Arctostaphylos pallida Eastw. |
||
|
Common Name: pallid manzanita |
||
| Family: | Ericaceae | |
| Element Code: | PDERI04110 | |
| USDA Plants Symbol: | ARPA21 | |
|
Synonyms/Other Names: |
||
| Name Status: |
JEF, FNA, POWO, IPNI, Tropicos |
|
| CA Rare Plant Rank: | 1B.1 |
| Fed List: | FT (1998-04-22) |
| State List: | CE (1979-11-01) |
| Global Rank: | G1 |
|
State Rank: |
S1 |
| Other Status: | SB_CalBG/RSABG |
|
CRPR Changes: |
|
| Add Date: | 1974-01-01 |
| Date Edited: | 2025-10-29 |
| Lifeform: perennial evergreen shrub | ||||||||||||||
Blooming Period: Dec-Mar
|
||||||||||||||
|
Elevation:
185 - 465 meters 605 - 1525 feet |
||||||||||||||
General Habitats:
|
||||||||||||||
| Microhabitat Details: siliceous shale | ||||||||||||||
Microhabitat:
|
||||||||||||||
|
Notes: Plants from 465B are introduced. See Leaflets of Western Botany 1:76 (1933) for original description, and Four Seasons 7(4):28-46 (1987) for ecological assessment. |
|
|
Threats: Threatened by alteration of fire regimes, non-native plants, and road construction, and possibly by development, fungal infection, and hybridization. |
|
|
Taxonomy: |
|
| Threat List Total: | 14 | |
| Total EOs | % of EOs | |
| EOs with Threat Listed: | 9 | 100 % |
| THREAT LIST: | ||
|---|---|---|
| Other | 8 | 88% |
| Road/trail construction/maint. | 4 | 44% |
| Improper burning regime | 3 | 33% |
| Non-native plant impacts | 3 | 33% |
| Development | 3 | 33% |
| Disease | 3 | 33% |
| Foot traffic/trampling | 3 | 33% |
| Wood cutting or brush clearing | 2 | 22% |
| Biocides | 1 | 11% |
| Vandalism/dumping/litter | 1 | 11% |
| Grazing | 1 | 11% |
| Erosion/runoff | 1 | 11% |
| ORV activity | 1 | 11% |
| Recreational use (non-ORV) | 1 | 11% |
| Total Occurrences: | 9 | ||||
| Element Occurrence Ranks: | |||||
|---|---|---|---|---|---|
| A | B | C | D | X | U |
| 0 | 1 | 4 | 3 | 1 | 0 |
| Occurrence Status: | |||||
|---|---|---|---|---|---|
| Historical >20 Years | 1 | ||||
| Recent <=20 Years | 8 | ||||
| Presence: | |||||
|---|---|---|---|---|---|
| Presumed Extant | 8 | ||||
| Possibly Extirpated | 1 | ||||
| Presumed Extirpated | 0 | ||||
| California Endemic: | |||||||||||||
| California Island: | |||||||||||||
|
States: Name (Code) California (CA) |
|||||||||||||
|
California Counties and Islands: Name (Code) Alameda (ALA), Contra Costa (CCA) |
|||||||||||||
|
Quads: Name (Quad Code) Briones Valley (3712282), Oakland East (3712272), Richmond (3712283) |
|||||||||||||
Notes:
|
|||||||||||||
Presumed Extant
Click on quad for name. Hold Shift Key to use mouse scroll wheel