Taxon Report
Lewisia stebbinsii Gankin & HildrethStebbins' lewisia |
 © 2015 John Doyen |
Taxon Summary
Lewisia stebbinsii, commonly known as Stebbins' lewisia, is a perennial herb in the Montiaceae that is found only in California. It occurs within Lower montane coniferous forest, and Upper montane coniferous forest, growing at elevations from 1600 to 2050 meters. Lewisia stebbinsii 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 stebbinsii Gankin & Hildreth |
|
Common Name: |
Stebbins' lewisia |
| Family: | Montiaceae |
| Element Code: | PDPOR040G0 |
| USDA Plants Symbol: | LEST6 |
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Synonyms/Other Names: |
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Ecology and Life History
| Lifeform: | perennial herb |
| Blooming Period: May-Jul | May-Jul |
| Elevation: | 1600-2050 (5250-6725) |
| General Habitats: | Lower montane coniferous forest, Upper montane coniferous forest |
| Microhabitat: | Gravelly, Serpentine (sometimes) |
| 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: | SB_UCSC; USFS_S |
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CRPR Changes: |
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Occurrence Data from the CNDDB
| Total Occurrences: | 12 |
| Element Occurrence Ranks: | |
| Excellent (A) | 3 |
| Good (B) | 4 |
| Fair (C) | 1 |
| Poor (D) | 0 |
| None (X) | 0 |
| Unknown (U) | 4 |
| California Endemic: True | |
| California Counties and Islands: Name (Code) | |
| Lake (LAK), Mendocino (MEN), Trinity (TRI) | |
| Quads: Name (Quad Code) | |
| Hull Mountain (3912258), Leech Lake Mtn. (3912381), Plaskett Ridge (3912268), Solomon Peak (4012218) | |
Threat List Data from the CNDDB
| Threat List Total: | 4 | |
| EOs with Threat Listed: | Total EOs | % of EOs |
| 7 | 58 % | |
| Road/trail construction/maint. | 5 | 41% |
| ORV activity | 4 | 33% |
| Grazing | 1 | 8% |
| Logging | 1 | 8% |
Selected References
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Four Seasons 2(4):12-14 (1968) |
| Lewisia stebbinsii profile for potential Species of Conservation Concern evaluation (2018) |
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].