Taxon Report

Sedum sanhedrinum Berger

Sanhedrin Mountain stonecrop

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Taxon Summary

Sedum sanhedrinum, commonly known as Sanhedrin Mountain stonecrop, is a perennial herb in the Crassulaceae that is . It occurs within Chaparral, Lower montane coniferous forest, and Upper montane coniferous forest, growing at elevations from 1415 to 2285 meters. Sedum sanhedrinum is ranked 1B.2, Plants Rare, Threatened or Endangered in California and Elsewhere; Moderately threatened in California.

Classification


Scientific Name:	Sedum sanhedrinum Berger
Common Name:	Sanhedrin Mountain stonecrop
Family:	Crassulaceae
Element Code:	PDCRA0A260
USDA Plants Symbol:
Synonyms/Other Names:

Ecology and Life History


Lifeform:	perennial herb
Blooming Period: May-Jul	May-Jul
Elevation:	1415-2285 (4645-7495)
General Habitats:	Chaparral, Lower montane coniferous forest, Upper montane coniferous forest
Microhabitat:	Gabbroic, Metamorphic, Openings, Rock crevices, Rocky, Serpentine, Talus
Microhabitat Details:

Conservation Status


CA Rare Plant Rank:	1B.2
Global Rank:	G2G3
State Rank:	S2S3
State List:	None
Fed List:	None
Other Status:
CRPR Changes:	added to 1B.2 on 2021-05-14

Occurrence Data from the CNDDB


Total Occurrences:	21
Element Occurrence Ranks:
Excellent (A)	0
Good (B)	0
Fair (C)	0
Poor (D)	0
None (X)	0
Unknown (U)	21

Location


California Endemic: False
California Counties and Islands: Name (Code)
Colusa (COL), Lake (LAK), Mendocino (MEN), Tehama (TEH), Trinity (TRI)
Quads: Name (Quad Code)
Buck Rock (3912288), Crockett Peak (3912247), Fouts Springs (3912236), Hull Mountain (3912258), Mendocino Pass (3912278), Newhouse Ridge (3912371), North Yolla Bolly (4012228), Plaskett Ridge (3912268), Raglin Ridge (4012216), Sanhedrin Mtn. (3912351), South Yolla Bolly (4012217), Tomhead Mtn. (4012227)

Threat List Data from the CNDDB


Threat List Total:	0
EOs with Threat Listed:	Total EOs	% of EOs
	0	%

Notes



Possibly threatened by fire. Previously included in Sedum obtusatum subsp. retusum. See Phytotaxa 368: 1–61 (2018) for taxonomy.
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 27 January 2025].