Taxon Report
Arctostaphylos hookeri D. Don ssp. hookeriHooker's manzanita |
 © 2011 Chris Winchell |
Species Description:
Arctostaphylos hookeri ssp. hookeri, commonly known as Hooker's manzanita, is a perennial evergreen shrub in the Ericaceae that is found only in California. It occurs within Chaparral, Cismontane woodland, Closed-cone coniferous forest, and Coastal scrub, growing at elevations from 46 to 536 meters. Arctostaphylos hookeri ssp. hookeri is ranked 1B.2, Plants Rare, Threatened or Endangered in California and Elsewhere; Moderately threatened in California.
Classification
|
Scientific Name: |
Arctostaphylos hookeri D. Don ssp. hookeri |
|
Common Name: |
Hooker's manzanita |
| Family: | Ericaceae |
| Element Code: | PDERI040J1 |
| USDA Plants Symbol: | ARHOH4 |
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Synonyms/Other Names: |
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Ecology and Life History
| Lifeform: | perennial evergreen shrub |
| Blooming Period: Jan-Jun | Jan-Jun |
| Elevation: | 46-536 (150-1760) |
| General Habitats: | Chaparral, Cismontane woodland, Closed-cone coniferous forest, Coastal scrub |
| Microhabitat: | Sandy |
| Microhabitat Details: |
Conservation Status
| CA Rare Plant Rank: | 1B.2 |
| Global Rank: | G3T2 |
|
State Rank: |
S2 |
| State List: | None |
| Fed List: | None |
| Other Status: | BLM_S; SB_UCSC |
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CRPR Changes: |
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Occurrence Data from the CNDDB
| Total Occurrences: | 24 |
| Element Occurrence Ranks: | |
| Excellent (A) | 3 |
| Good (B) | 4 |
| Fair (C) | 1 |
| Poor (D) | 2 |
| None (X) | 0 |
| Unknown (U) | 14 |
| California Endemic: True | |
| California Counties and Islands: Name (Code) | |
| Monterey (MNT), Santa Cruz (SCR) | |
| Quads: Name (Quad Code) | |
| Marina (3612167), Monterey (3612158), Prunedale (3612176), Salinas (3612166), Seaside (3612157), Soberanes Point (3612148), Spreckels (3612156), Watsonville West (3612187) | |
Threat List Data from the CNDDB
| Threat List Total: | 10 | |
| EOs with Threat Listed: | Total EOs | % of EOs |
| 12 | 50 % | |
| Development | 7 | 29% |
| Foot traffic/trampling | 4 | 16% |
| Other | 3 | 12% |
| Improper burning regime | 2 | 8% |
| Non-native plant impacts | 2 | 8% |
| Road/trail construction/maint. | 1 | 4% |
| Wood cutting or brush clearing | 1 | 4% |
| Erosion/runoff | 1 | 4% |
| Agriculture | 1 | 4% |
| Biocides | 1 | 4% |
Citation
California Native Plant Society, Rare Plant Program. 2025. Rare Plant Inventory (online edition, v9.5.1). Website https://www.rareplants.cnps.org [accessed 22 January 2025].