Taxon Report
Lewisia congdonii (Rydb.) S. ClayCongdon's lewisia |
 © 2010 Aaron Schusteff |
Classification
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Scientific Name: |
Lewisia congdonii (Rydb.) S. Clay |
|
Common Name: |
Congdon's lewisia |
| Family: | Montiaceae |
| Element Code: | PDPOR04040 |
| USDA Plants Symbol: | LECO4 |
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Synonyms/Other Names: |
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Ecology and Life History
| Lifeform: | perennial herb |
| Blooming Period: Apr-Jun | Apr-Jun |
| Elevation: | 500-2800 (1640-9185) |
| General Habitats: | Chaparral, Cismontane woodland, Lower montane coniferous forest, Upper montane coniferous forest, Valley and foothill grassland |
| Microhabitat: | Granitic (sometimes), Mesic, Metamorphic (sometimes), Rocky |
| Microhabitat Details: |
Conservation Status
| CA Rare Plant Rank: | 1B.3 |
| Global Rank: | G2 |
|
State Rank: |
S2 |
| State List: | CR |
| 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: | 10 |
| Element Occurrence Ranks: | |
| Excellent (A) | 2 |
| Good (B) | 0 |
| Fair (C) | 0 |
| Poor (D) | 0 |
| None (X) | 0 |
| Unknown (U) | 8 |
| California Endemic: True | |
| California Counties and Islands: Name (Code) | |
| Fresno (FRE), Mariposa (MPA) | |
| Quads: Name (Quad Code) | |
| El Portal (3711967), Hume (3611878), Wawona (3711956), Wren Peak (3611877) | |
Threat List Data from the CNDDB
| Threat List Total: | 5 | |
| EOs with Threat Listed: | Total EOs | % of EOs |
| 2 | 20 % | |
| Road/trail construction/maint. | 2 | 20% |
| Biocides | 1 | 10% |
| Erosion/runoff | 1 | 10% |
| Mining | 1 | 10% |
| Over-collecting/poaching | 1 | 10% |
Notes
| Known from approximately ten occurrences in the canyons of the Kings and Merced rivers. Threatened by exotic plant control, illegal dumping, and road maintenance. See North American Flora 21:328 (1932) for original description, and Fremontia 25(1):15-19 (1997) for genetic study of relationship to L. cantelovii and L. serrata. |
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Threats: |
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Taxonomy: |
Citation
California Native Plant Society, Rare Plant Program. 2024. Rare Plant Inventory (online edition, v9.5.1). Website https://www.rareplants.cnps.org [accessed 25 December 2024].