Taxon Report
Arctostaphylos montaraensis RoofMontara manzanita |
 © 2016 Neal Kramer |
Species Description:
Arctostaphylos montaraensis, commonly known as Montara manzanita, is a perennial evergreen shrub in the Ericaceae that is found only in California. It occurs within Chaparral (maritime), and Coastal scrub, growing at elevations from 80 to 500 meters. Arctostaphylos montaraensis is ranked 1B.2, Plants Rare, Threatened or Endangered in California and Elsewhere; Moderately threatened in California.
Classification
|
Scientific Name: |
Arctostaphylos montaraensis Roof |
|
Common Name: |
Montara manzanita |
| Family: | Ericaceae |
| Element Code: | PDERI042W0 |
| USDA Plants Symbol: | ARMO5 |
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Synonyms/Other Names: |
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Ecology and Life History
| Lifeform: | perennial evergreen shrub |
| Blooming Period: Jan-Mar | Jan-Mar |
| Elevation: | 80-500 (260-1640) |
| General Habitats: | Chaparral, Coastal scrub |
| Microhabitat: | |
| Microhabitat Details: |
Conservation Status
| CA Rare Plant Rank: | 1B.2 |
| Global Rank: | G1 |
|
State Rank: |
S1 |
| State List: | None |
| Fed List: | None |
| Other Status: | SB_CalBG/RSABG; SB_USDA |
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CRPR Changes: |
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Occurrence Data from the CNDDB
| Total Occurrences: | 4 |
| Element Occurrence Ranks: | |
| Excellent (A) | 2 |
| Good (B) | 0 |
| Fair (C) | 1 |
| Poor (D) | 1 |
| None (X) | 0 |
| Unknown (U) | 0 |
| California Endemic: True | |
| California Counties and Islands: Name (Code) | |
| San Mateo (SMT) | |
| Quads: Name (Quad Code) | |
| Montara Mountain (3712254), San Francisco South (3712264) | |
Threat List Data from the CNDDB
| Threat List Total: | 7 | |
| EOs with Threat Listed: | Total EOs | % of EOs |
| 3 | 75 % | |
| Improper burning regime | 2 | 50% |
| Non-native plant impacts | 2 | 50% |
| Road/trail construction/maint. | 2 | 50% |
| Wood cutting or brush clearing | 1 | 25% |
| Other | 1 | 25% |
| Erosion/runoff | 1 | 25% |
| Foot traffic/trampling | 1 | 25% |
Citation
California Native Plant Society, Rare Plant Program. 2025. Rare Plant Inventory (online edition, v9.5.1). Website https://www.rareplants.cnps.org [accessed 23 January 2025].