Taxon Report
Sedum patens ZikaSmith River stonecrop |
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Taxon Summary
Sedum patens, commonly known as Smith River stonecrop, is a perennial herb in the Crassulaceae that is found only in California. It occurs within Lower montane coniferous forest, growing at elevations from 90 to 210 meters. Sedum patens is ranked 1B.2, Plants Rare, Threatened or Endangered in California and Elsewhere; Moderately threatened in California.Classification
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Scientific Name: |
Sedum patens Zika |
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Common Name: |
Smith River stonecrop |
| Family: | Crassulaceae |
| Element Code: | PDCRA0A250 |
| USDA Plants Symbol: | |
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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: | 90-210 (295-690) |
| General Habitats: | Lower montane coniferous forest |
| Microhabitat: | Openings, Rock crevices, Rocky, Talus |
| Microhabitat Details: | Ultramafic |
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: | |
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CRPR Changes: |
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Occurrence Data from the CNDDB
| Total Occurrences: | 6 |
| Element Occurrence Ranks: | |
| Excellent (A) | 0 |
| Good (B) | 0 |
| Fair (C) | 0 |
| Poor (D) | 0 |
| None (X) | 0 |
| Unknown (U) | 6 |
| California Endemic: False | |
| California Counties and Islands: Name (Code) | |
| Del Norte (DNT) | |
| Quads: Name (Quad Code) | |
| Cant Hook Mtn. (4112368), Gasquet (4112378), Hiouchi (4112471) | |
Threat List Data from the CNDDB
| Threat List Total: | 0 | |
| EOs with Threat Listed: | Total EOs | % of EOs |
| 0 | % | |
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Notes
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Possibly threatened by horticultural collecting and fire. Similar to S. laxum ssp. laxum; differs in having flowers with white, strongly spreading petals and yellow anthers vs. flowers with erect, usually pink petals and dark red anthers in S. laxum. See Phytotaxa 368: 1–61 (2018) for original description. |
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Threats: |
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Taxonomy: |
Selected References
| CRPR List Addition on 2021-05-14 |
| Sedum patens account for potential Species of Conservation Concern evaluation (2022) |
Citation
California Native Plant Society, Rare Plant Program. 2025. Rare Plant Inventory (online edition, v9.5.1). Website https://www.rareplants.cnps.org [accessed 19 November 2025].