Taxon Report

Sedum citrinum Zika

Blue Creek stonecrop

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Taxon Summary

Sedum citrinum, commonly known as Blue Creek stonecrop, is a perennial herb in the Crassulaceae that is found only in California. It occurs within North Coast coniferous forest, growing at elevations from 1050 to 1280 meters. Sedum citrinum is ranked 1B.2, Plants Rare, Threatened or Endangered in California and Elsewhere; Moderately threatened in California.

Classification


Scientific Name:	Sedum citrinum Zika
Common Name:	Blue Creek stonecrop
Family:	Crassulaceae
Element Code:	PDCRA0A200
USDA Plants Symbol:	SECI6
Synonyms/Other Names:

Ecology and Life History


Lifeform:	perennial herb
Blooming Period: Jun	Jun
Elevation:	1050-1280 (3445-4200)
General Habitats:	North Coast coniferous forest
Microhabitat:	Roadsides (sometimes), Rock crevices, Rocky, Scree, Serpentine, Talus
Microhabitat Details:	boulder crevices

Conservation Status


CA Rare Plant Rank:	1B.2
Global Rank:	G2
State Rank:	S2
State List:	None
Fed List:	None
Other Status:	SB_UCSC
CRPR Changes:	added to 1B.2 on 2015-04-20

Occurrence Data from the CNDDB


Total Occurrences:	12
Element Occurrence Ranks:
Excellent (A)	0
Good (B)	3
Fair (C)	0
Poor (D)	0
None (X)	0
Unknown (U)	9

Location


California Endemic: True
California Counties and Islands: Name (Code)
Del Norte (DNT)
Quads: Name (Quad Code)
Hurdygurdy Butte (4112377), Klamath Glen (4112358), Ship Mountain (4112367), Summit Valley (4112357)

Threat List Data from the CNDDB


Threat List Total:	2
EOs with Threat Listed:	Total EOs	% of EOs
	7	58 %
Road/trail construction/maint.	7	58%
Mining	5	41%

Notes



Potentially threatened by fire suppression and horticultural collecting. Possibly threatened by road widening and maintenance, and vehicles. Similar to and allopatric with S. kiersteadiae. See Phytotaxa 159(2):111-121 (2014) for original description.
Threats:

Taxonomy:

Selected References

CRPR List Addition on 2015-04-20

Sedum citrinum profile 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 2 November 2025].