Taxon Report
Sedella leiocarpa H.K. Sharsm.Lake County stonecrop |
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Classification
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Scientific Name: |
Sedella leiocarpa H.K. Sharsm. |
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Common Name: |
Lake County stonecrop |
| Family: | Crassulaceae |
| Element Code: | PDCRA0F020 |
| USDA Plants Symbol: | SELE7 |
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Synonyms/Other Names: |
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Ecology and Life History
| Lifeform: | annual herb |
| Blooming Period: Apr-May | Apr-May |
| Elevation: | 365-790 (1200-2590) |
| General Habitats: | Cismontane woodland, Valley and foothill grassland, Vernal pools |
| Microhabitat: | Vernally Mesic, Volcanic |
| Microhabitat Details: | vernally mesic depressions in volcanic outcrops |
Conservation Status
| CA Rare Plant Rank: | 1B.1 |
| Global Rank: | G1 |
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State Rank: |
S1 |
| State List: | CE |
| Fed List: | FE |
| Other Status: | |
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CRPR Changes: |
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Occurrence Data from the CNDDB
| Total Occurrences: | 5 |
| Element Occurrence Ranks: | |
| Excellent (A) | 0 |
| Good (B) | 3 |
| Fair (C) | 0 |
| Poor (D) | 0 |
| None (X) | 1 |
| Unknown (U) | 1 |
| California Endemic: True | |
| California Counties and Islands: Name (Code) | |
| Lake (LAK) | |
| Quads: Name (Quad Code) | |
| Clearlake Highlands (3812286), Middletown (3812275), Whispering Pines (3812276) | |
Threat List Data from the CNDDB
| Threat List Total: | 6 | |
| EOs with Threat Listed: | Total EOs | % of EOs |
| 5 | 100 % | |
| Grazing | 3 | 60% |
| Non-native plant impacts | 1 | 20% |
| Other | 1 | 20% |
| Road/trail construction/maint. | 1 | 20% |
| Agriculture | 1 | 20% |
| Disking | 1 | 20% |
Notes
| Extremely vulnerable to trampling; also threatened by grazing, altered hydrology, and development. Potentially threatened by road widening, and possibly threatened by non-native plants. State and federally listed as Parvisedum leiocarpum; see this name in The Jepson Manual (1993). See Madroño 5(6):192 (1940) for original description, and Haseltonia 5:53-60 (1997) for taxonomic information. |
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Threats: |
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Taxonomy: |
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 January 2025].