Taxon Report
Lewisia disepala Rydb.Yosemite lewisia |
 © 2009 Steven Perry |
Taxon Summary
Lewisia disepala, commonly known as Yosemite lewisia, is a perennial herb in the Montiaceae that is found only in California. It occurs within Lower montane coniferous forest, Pinyon and juniper woodland, and Upper montane coniferous forest, growing at elevations from 1035 to 3500 meters. Lewisia disepala is ranked 1B.2, Plants Rare, Threatened or Endangered in California and Elsewhere; Moderately threatened in California.Classification
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Scientific Name: |
Lewisia disepala Rydb. |
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Common Name: |
Yosemite lewisia |
| Family: | Montiaceae |
| Element Code: | PDPOR04060 |
| USDA Plants Symbol: | LEDI3 |
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Synonyms/Other Names: |
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Ecology and Life History
| Lifeform: | perennial herb |
| Blooming Period: Mar-Jun | Mar-Jun |
| Elevation: | 1035-3500 (3395-11485) |
| General Habitats: | Lower montane coniferous forest, Pinyon and juniper woodland, Upper montane coniferous forest |
| Microhabitat: | Granitic, Sandy |
| Microhabitat Details: |
Conservation Status
| CA Rare Plant Rank: | 1B.2 |
| Global Rank: | G2 |
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State Rank: |
S2 |
| State List: | None |
| Fed List: | None |
| Other Status: | BLM_S; USFS_S |
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CRPR Changes: |
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Occurrence Data from the CNDDB
| Total Occurrences: | 22 |
| Element Occurrence Ranks: | |
| Excellent (A) | 7 |
| Good (B) | 1 |
| Fair (C) | 4 |
| Poor (D) | 0 |
| None (X) | 0 |
| Unknown (U) | 10 |
| California Endemic: True | |
| California Counties and Islands: Name (Code) | |
| Fresno (FRE), Kern (KRN), Madera (MAD), Mariposa (MPA), Tulare (TUL) | |
| Quads: Name (Quad Code) | |
| Balloon Dome (3711942), Cannell Peak (3511873), El Capitan (3711966), Half Dome (3711965), Hockett Peak (3611824), Lamont Peak (3511871), Mammoth Pool Dam (3711933), Merced Peak (3711964), Sentinel Peak (3611815), Shaver Lake (3711913), Sirretta Peak (3511883), Squaw Dome (3711943), Tenaya Lake (3711974), Walker Pass (3511861), White Dome (3511872), Yosemite Falls (3711975) | |
Threat List Data from the CNDDB
| Threat List Total: | 8 | |
| EOs with Threat Listed: | Total EOs | % of EOs |
| 10 | 45 % | |
| Foot traffic/trampling | 4 | 18% |
| ORV activity | 4 | 18% |
| Recreational use (non-ORV) | 3 | 13% |
| Road/trail construction/maint. | 2 | 9% |
| Vandalism/dumping/litter | 1 | 4% |
| Development | 1 | 4% |
| Other | 1 | 4% |
| Logging | 1 | 4% |
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 January 2025].