Taxon Report
Quercus parvula Greene var. parvulaSanta Cruz Island oak |
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Taxon Summary
Quercus parvula var. parvula, commonly known as Santa Cruz Island oak, is a perennial evergreen shrub in the Fagaceae that is found only in California. It occurs within Chaparral, Cismontane woodland, and Closed-cone coniferous forest, growing at elevations from 30 to 915 meters. Quercus parvula var. parvula is ranked 4.2, Plants of Limited Distribution, A Watch List; Moderately threatened in California.Classification
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Scientific Name: |
Quercus parvula Greene var. parvula |
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Common Name: |
Santa Cruz Island oak |
| Family: | Fagaceae |
| Element Code: | PDFAG051Q1 |
| USDA Plants Symbol: | QUPAP2 |
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Synonyms/Other Names: |
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Ecology and Life History
| Lifeform: | perennial evergreen shrub |
| Blooming Period: (Mar)Apr-Jun | (Mar)Apr-Jun |
| Elevation: | 30-915 (100-3000) |
| General Habitats: | Chaparral, Cismontane woodland, Closed-cone coniferous forest |
| Microhabitat: | |
| Microhabitat Details: |
Conservation Status
| CA Rare Plant Rank: | 4.2 |
| Global Rank: | G4T3 |
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State Rank: |
S3 |
| State List: | None |
| Fed List: | None |
| Other Status: | IUCN_EN |
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CRPR Changes: |
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Occurrence Data from the CNDDB
| Total Occurrences: | 0 |
| Element Occurrence Ranks: | |
| Excellent (A) | 0 |
| Good (B) | 0 |
| Fair (C) | 0 |
| Poor (D) | 0 |
| None (X) | 0 |
| Unknown (U) | 0 |
| California Endemic: True | |
| California Counties and Islands: Name (Code) | |
| Santa Barbara (SBA) | |
| Quads: Name (Quad Code) | |
| Santa Cruz Island B (3311986), Santa Cruz Island C (3311985) | |
Threat List Data from the CNDDB
| Threat List Total: | 0 | |
| EOs with Threat Listed: | Total EOs | % of EOs |
| 0 | 0 % | |
Citation
California Native Plant Society, Rare Plant Program. 2025. Rare Plant Inventory (online edition, v9.5.1). Website https://www.rareplants.cnps.org [accessed 30 October 2025].