Taxon Report
Lithophragma maximum Bacig.San Clemente Island woodland star |
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Taxon Summary
Lithophragma maximum, commonly known as San Clemente Island woodland star, is a perennial rhizomatous herb in the Saxifragaceae that is found only in California. It occurs within Coastal bluff scrub, and Coastal scrub, growing at elevations from 120 to 400 meters. Lithophragma maximum is ranked 1B.1, Plants Rare, Threatened or Endangered in California and Elsewhere; Seriously threatened in California.Classification
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Scientific Name: |
Lithophragma maximum Bacig. |
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Common Name: |
San Clemente Island woodland star |
| Family: | Saxifragaceae |
| Element Code: | PDSAX0M070 |
| USDA Plants Symbol: | LIMA6 |
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Synonyms/Other Names: |
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Ecology and Life History
| Lifeform: | perennial rhizomatous herb |
| Blooming Period: Apr-Jun | Apr-Jun |
| Elevation: | 120-400 (395-1310) |
| General Habitats: | Coastal bluff scrub, Coastal scrub |
| Microhabitat: | Rocky |
| Microhabitat Details: |
Conservation Status
| CA Rare Plant Rank: | 1B.1 |
| Global Rank: | G1 |
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State Rank: |
S1 |
| State List: | CE |
| Fed List: | FE |
| Other Status: | SB_CalBG/RSABG |
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CRPR Changes: |
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Occurrence Data from the CNDDB
| Total Occurrences: | 6 |
| Element Occurrence Ranks: | |
| Excellent (A) | 0 |
| Good (B) | 0 |
| Fair (C) | 0 |
| Poor (D) | 0 |
| None (X) | 0 |
| Unknown (U) | 6 |
| California Endemic: True | |
| California Counties and Islands: Name (Code) | |
| Los Angeles (LAX) | |
| Quads: Name (Quad Code) | |
| San Clemente Island Central (3211874)*, San Clemente Island South (3211873) | |
Threat List Data from the CNDDB
| Threat List Total: | 1 | |
| EOs with Threat Listed: | Total EOs | % of EOs |
| 1 | 17 % | |
| Erosion/runoff | 1 | 16% |
Citation
California Native Plant Society, Rare Plant Program. 2025. Rare Plant Inventory (online edition, v9.5.1). Website https://www.rareplants.cnps.org [accessed 29 January 2025].