Taxon Report
Sedum paradisum (Denton) Denton ex. B. L. Wilson ssp. subroseum B. L. Wilson & ZikaPlumas stonecrop |
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Species Description:
Sedum paradisum ssp. subroseum, commonly known as Plumas stonecrop, is a perennial herb in the Crassulaceae that is found only in California. It occurs within Lower montane coniferous forest, and Upper montane coniferous forest, growing at elevations from 1305 to 2165 meters. Sedum paradisum ssp. subroseum 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 paradisum (Denton) Denton ex. B. L. Wilson ssp. subroseum B. L. Wilson & Zika |
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Common Name: |
Plumas stonecrop |
| Family: | Crassulaceae |
| Element Code: | PDCRA0A2A1 |
| USDA Plants Symbol: | |
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Synonyms/Other Names: |
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Ecology and Life History
| Lifeform: | perennial herb |
| Blooming Period: Jun-Aug(Sep) | Jun-Aug(Sep) |
| Elevation: | 1305-2165 (4280-7105) |
| General Habitats: | Lower montane coniferous forest, Upper montane coniferous forest |
| Microhabitat: | Granitic, Openings, Rocky, Serpentine, Volcanic |
| Microhabitat Details: | Grows on cliffs and steep rocky slopes, in full sun to partial shade, within lower and upper montane coniferous forest. |
Conservation Status
| CA Rare Plant Rank: | 1B.2 |
| Global Rank: | G3G4T2 |
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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: | 0 |
| Element Occurrence Ranks: | |
| Excellent (A) | 0 |
| Good (B) | 0 |
| Fair (C) | 0 |
| Poor (D) | 0 |
| None (X) | 0 |
| Unknown (U) | 0 |
| California Endemic: True | |
| California Counties and Islands: Name (Code) | |
| Quads: Name (Quad Code) | |
Threat List Data from the CNDDB
| Threat List Total: | 0 | |
| EOs with Threat Listed: | Total EOs | % of EOs |
| 0 | 0 % | |
Notes
| References to this taxon growing in Butte County in Zika et al. 2018 are an error. Reports of this species growing near 900 m in elevation may be based on a label error for Ahart s.n. (CAS:BOT:932358) which is from La Porte with a stated elevation of 914 m; La Porte is at 1525 m, not 914. This error is likely responsible for the low elevation of 900 m given in the Jepson eFlora. |
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Threats: |
| Threatened by fire, fire suppression activities, road maintenance, vehicles, and horticultural collecting. |
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Taxonomy: |
| Resembles Sedum obtusatum from which it differs by having petals that are white fading to pink (versus pale to deep yellow). Plants previously referred to S. obtusatum ssp. boreale in Plumas and Sierra counties now determined to be S. paradisum ssp. subroseum. Sedum paradisum ssp. subroseum is geographically separated from S. obtusatum by the Middle Fork of the Yuba River in Sierra County. |
Selected References
| CNPS Status Review: Proposed Addition to CRPR 1B.2 (2024) |
| Phytotaxa 368: 1–61 (2018) |
| Phytotaxa 368: 1–61 (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 20 January 2025].