Home/Species/ Feather River Stonecrop

Sedum albomarginatum

Clausen

Feather River Stonecrop

G2Imperiled Found in 4 roadless areas NatureServe Explorer →

G2ImperiledGlobal Rank

High - mediumThreat Impact

Identity

Unique IDELEMENT_GLOBAL.2.142701

Element CodePDCRA0A030

Record TypeSPECIES

ClassificationSpecies

Classification StatusStandard

Name CategoryVascular Plant

Endemicendemic to a single state or province

KingdomPlantae

PhylumAnthophyta

ClassDicotyledoneae

OrderRosales

FamilyCrassulaceae

GenusSedum

Concept Reference

Kartesz, J.T. 1994. A synonymized checklist of the vascular flora of the United States, Canada, and Greenland. 2nd edition. 2 vols. Timber Press, Portland, OR.

Conservation Status

Rank Method Rank calculation - Biotics v2

Review Date2021-07-02

Change Date1984-06-26

Edition Date2021-07-02

Edition AuthorsD. Gries, rev. R. Bittman (1998), rev. M. Fellows (2003), rev. Treher and Bittman (2016), rev. A. Tomaino (2021)

Threat ImpactHigh - medium

Range Extent250-1000 square km (about 100-400 square miles)

Number of Occurrences6 - 20

Rank Reasons

Endemic to California, Sedum albomarginatum is known from about twelve extant occurrences in Butte and Plumas Counties. The primary threat to this species is road construction and maintenance.

Range Extent Comments

Sedum albomarginatum is restricted to Butte and Plumas counties, California, "along the drainage of the North Fork of the Feather River and its tributaries" (Zika et al. 2018).

Occurrences Comments

Known from fifteen occurrences; four occurrences haven't been seen since the 1980's (CNDDB 2021).

Threat Impact Comments

The primary threat to Sedum albomarginatum is habitat loss and degradation through road construction, transmission line maintenance, logging, horticultural collecting, fire, and new mining claims (CNPS 2021; CNDDB 2021).

Ecology & Habitat

Habitat

Sedum albomarginatum occurs on step serpentine slopes in chaparral and lower montane coniferous forest (Skinner, 1997, Flora of North America Editorial Committee 2009, Baldwin et al. 2012). It is found on strongly serpentine bedrock, except for a northern population on a metasedimentary substrate (Zika et al. 2018).

Terrestrial Habitats

Forest/WoodlandForest - ConiferShrubland/chaparralBarrensBare rock/talus/scree

Other Nations (1)

United StatesN2

Province	Rank	Native
California	S2	Yes

Threat Assessments

Threat	Scope	Severity	Timing
3 - Energy production & mining	Small (1-10%)	Unknown	High - low
4 - Transportation & service corridors	Large (31-70%)	Serious - moderate	High (continuing)
4.1 - Roads & railroads	Large (31-70%)	Serious - moderate	High (continuing)
5 - Biological resource use	Restricted (11-30%)	Serious - moderate	High - low
5.3 - Logging & wood harvesting	Restricted (11-30%)	Serious - moderate	High - low
7 - Natural system modifications	Small (1-10%)	Serious - slight	High (continuing)
7.1 - Fire & fire suppression	Small (1-10%)	Serious - slight	High (continuing)
7.1.2 - Suppression in fire frequency/intensity	Small (1-10%)	Serious - slight	High (continuing)

Plant Characteristics

DurationPERENNIAL

Economic Value (Genus)No

Roadless Areas (4)

California (4)

Area	Forest	Acres
Bucks Lake	Plumas National Forest	680
Butt Mtn.	Lassen National Forest	8,217
Chips Creek	Lassen National Forest	29,089
Chips Creek	Plumas National Forest	12,940

References (9)

Baldwin, B. G., D. H. Goldman, D. J. Keil, R. Patterson, T. J. Rosatti, and D. H. Wilken, eds. 2012. The Jepson manual: vascular plants of California. 2nd edition. University of California Press, Berkeley, CA. 1568 pp.
Bittman, R. 1998. Lead Botanist, California Natural Diversity Database. Unpublished notes on fifty rare plants of California for purposes of updating Element Global Ranking (EGR) forms. California Natural Heritage Division, Dep. of Fish & Game, Sacramento, California, U.S.A.
Bureau of Land Management (BLM). 2015. All BLM California special status plants. Bureau of Land Management, Natural Resources Program. [https://www.blm.gov/sites/blm.gov/files/programs-natural-resources-native-plants-california-special-status-plants-detailed-list.pdf]
California Native Plant Society (CNPS). 2021. Inventory of Rare and Endangered Plants of California (online edition, v8-03 0.39). California Native Plant Society, Sacramento, CA. Online. Available: http://www.rareplants.cnps.org (accessed 2021).
California Natural Diversity Database (CNDDB). 2021. RareFind Version 5.2.14. California Department of Fish and Game, Sacramento.
Flora of North America Editorial Committee (FNA). 2009. Flora of North America north of Mexico. Vol. 8. Magnoliophyta: Paeoniaceae to Ericaceae. Oxford University Press, New York. xxiv + 585 pp.
Kartesz, J.T. 1994. A synonymized checklist of the vascular flora of the United States, Canada, and Greenland. 2nd edition. 2 vols. Timber Press, Portland, OR.
Skinner, M.W., and B.M. Pavlik, eds. 1997 (1994). Inventory of rare and endangered vascular plants of California. 1997 Electronic Inventory Update of 1994 5th edition, California Native Plant Society, Special Publication No. 1, Sacramento.
Zika, P.F., B.L. Wilson, R.E. Brainerd, N. Otting, S. Darington, B.J. Knaus, and J.K. Nelson. 2018. A review of <i>Sedum </i>section Gormania (Crassulaceae) in western North America. Phytotaxa 368(1): 1- 61.

Sedum albomarginatum

Habitat

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