Taxon Report

Sedum patens Zika

Smith 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

Scientific Name:
Sedum patens Zika
Common Name:
Smith River stonecrop
Family: Crassulaceae
Element Code: PDCRA0A250
USDA Plants Symbol:
Synonyms/Other Names:

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

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)

Notes

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.

Threats:
Taxonomy:

Selected References

CRPR List Addition on 2021-05-14
USFS Potential Species of Conservation Concern Profile
Citation California Native Plant Society, Rare Plant Program. 2025. Rare Plant Inventory (online edition, v9.5.1). Website https://www.rareplants.cnps.org [accessed 23 October 2025].