Taxon Report
Streptanthus gracilis Eastw.alpine jewelflower |
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Taxon Summary
Streptanthus gracilis, commonly known as alpine jewelflower, is a annual herb in the Brassicaceae that is found only in California. It occurs within Subalpine coniferous forest, and Upper montane coniferous forest, growing at elevations from 2800 to 3500 meters. Streptanthus gracilis is ranked 1B.3, Plants Rare, Threatened or Endangered in California and Elsewhere; Not very threatened in California.Classification
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Scientific Name: |
Streptanthus gracilis Eastw. |
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Common Name: |
alpine jewelflower |
| Family: | Brassicaceae |
| Element Code: | PDBRA2G0K0 |
| USDA Plants Symbol: | STGR3 |
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Synonyms/Other Names: |
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Ecology and Life History
| Lifeform: | annual herb |
| Blooming Period: Jul-Aug | Jul-Aug |
| Elevation: | 2800-3500 (9185-11485) |
| General Habitats: | Subalpine coniferous forest, Upper montane coniferous forest |
| Microhabitat: | Granitic, Rocky |
| Microhabitat Details: |
Conservation Status
| CA Rare Plant Rank: | 1B.3 |
| Global Rank: | G3 |
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State Rank: |
S3 |
| State List: | None |
| Fed List: | None |
| Other Status: | SB_CalBG/RSABG; USFS_S |
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CRPR Changes: |
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Occurrence Data from the CNDDB
| Total Occurrences: | 29 |
| Element Occurrence Ranks: | |
| Excellent (A) | 8 |
| Good (B) | 10 |
| Fair (C) | 3 |
| Poor (D) | 1 |
| None (X) | 0 |
| Unknown (U) | 7 |
| California Endemic: True | |
| California Counties and Islands: Name (Code) | |
| Fresno (FRE), Inyo (INY), Tulare (TUL) | |
| Quads: Name (Quad Code) | |
| Cedar Grove (3611876), Kearsarge Peak (3611873), Mt. Brewer (3611864), Mt. Clarence King (3611874), Mt. Pinchot (3611884), Sphinx Lakes (3611865), The Sphinx (3611875) | |
Threat List Data from the CNDDB
| Threat List Total: | 2 | |
| EOs with Threat Listed: | Total EOs | % of EOs |
| 2 | 7 % | |
| Foot traffic/trampling | 2 | 6% |
| Road/trail construction/maint. | 1 | 3% |
Citation
California Native Plant Society, Rare Plant Program. 2025. Rare Plant Inventory (online edition, v9.5.1). Website https://www.rareplants.cnps.org [accessed 6 November 2025].