Taxon Report
Streptanthus morrisonii F.W. Hoffm. ssp. morrisoniiMorrison's jewelflower |
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Taxon Summary
Streptanthus morrisonii ssp. morrisonii, commonly known as Morrison's jewelflower, is a perennial herb in the Brassicaceae that is found only in California. It occurs within Chaparral (rocky, serpentine, and talus), growing at elevations from 120 to 585 meters. Streptanthus morrisonii ssp. morrisonii is ranked 1B.2, Plants Rare, Threatened or Endangered in California and Elsewhere; Moderately threatened in California.Classification
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Scientific Name: |
Streptanthus morrisonii F.W. Hoffm. ssp. morrisonii |
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Common Name: |
Morrison's jewelflower |
| Family: | Brassicaceae |
| Element Code: | PDBRA2G0S3 |
| USDA Plants Symbol: | STMOM |
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Synonyms/Other Names: |
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Ecology and Life History
| Lifeform: | perennial herb |
| Blooming Period: May-Sep | May-Sep |
| Elevation: | 120-585 (395-1920) |
| General Habitats: | Chaparral |
| Microhabitat: | |
| Microhabitat Details: |
Conservation Status
| CA Rare Plant Rank: | 1B.2 |
| Global Rank: | G2T1? |
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State Rank: |
S1? |
| State List: | None |
| Fed List: | None |
| Other Status: | BLM_S |
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CRPR Changes: |
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Occurrence Data from the CNDDB
| Total Occurrences: | 5 |
| Element Occurrence Ranks: | |
| Excellent (A) | 3 |
| Good (B) | 1 |
| Fair (C) | 0 |
| Poor (D) | 0 |
| None (X) | 0 |
| Unknown (U) | 1 |
| California Endemic: True | |
| California Counties and Islands: Name (Code) | |
| Sonoma (SON) | |
| Quads: Name (Quad Code) | |
| Cazadero (3812351), Fort Ross (3812352), Tombs Creek (3812362), Warm Springs Dam (3812361) | |
Threat List Data from the CNDDB
| Threat List Total: | 0 | |
| EOs with Threat Listed: | Total EOs | % of EOs |
| 0 | % | |
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Citation
California Native Plant Society, Rare Plant Program. 2025. Rare Plant Inventory (online edition, v9.5.1). Website https://www.rareplants.cnps.org [accessed 31 October 2025].