Roadless Areas
Home/Species/ Pale Yellow Stonecrop

Sedum flavidum

(Denton) B.L. Wilson & Zika

Pale Yellow Stonecrop

G3Vulnerable Found in 14 roadless areas NatureServe Explorer →
G3VulnerableGlobal Rank
MediumThreat Impact
Identity
Unique IDELEMENT_GLOBAL.2.147315
Element CodePDCRA0A0L2
Record TypeSPECIES
ClassificationSpecies
Classification StatusStandard
Name CategoryVascular Plant
Endemicendemic to a single state or province
KingdomPlantae
PhylumAnthophyta
ClassDicotyledoneae
OrderRosales
FamilyCrassulaceae
GenusSedum
Synonyms
Sedum laxum ssp. flavidumDentonSedum laxum var. flavidum(Denton) H. Ohba
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.
Taxonomic Comments
Flora of North America (vol. 8, 2009) treats this taxon as Sedum laxum var. flavidum, while Kartesz (1994, 1999) treated it as a subspecies. Zika et al. (2018) treat it as Sedum flavidum. Zika et al. (2018) explain "Sedum flavidum and Sedum eastwoodiae were removed from S. laxum sensu stricto, and raised to species rank, based on floral characters."
Conservation Status
Rank Method Rank calculation - Biotics v2
Review Date2021-05-26
Change Date2021-05-26
Edition Date2018-09-18
Edition AuthorsJoyal, E., rev. C. Russell, rev. Bittman and Treher (2016), rev. Bittman and Tomaino (2018)
Threat ImpactMedium
Range Extent20,000-200,000 square km (about 8000-80,000 square miles)
Number of Occurrences21 - 80
Rank Reasons
California endemic with a moderate number of populations. Threats include road building and mining.
Range Extent Comments
This taxon is endemic to northern California in Trinity, Humboldt, Glen, and Colusa counties (Zika et al. 2018).
Threat Impact Comments
Road building and mining could impact several locations. Logging is also a threat (CNDDB 2018).
Ecology & Habitat

Habitat

Exposed rock outcrops of different rock types from volcanics to metamorphics.
Terrestrial Habitats
Bare rock/talus/scree
Other Nations (1)
United StatesN3
ProvinceRankNative
CaliforniaS3Yes
Plant Characteristics
Economic Value (Genus)No
Roadless Areas (14)
California (14)
AreaForestAcres
Black ButteMendocino National Forest15,461
Blue Creek Rare ISix Rivers National Forest12,134
ChanchelullaShasta-Trinity National Forest3,915
ChinquapinShasta-Trinity National Forest22,040
GrindstoneMendocino National Forest26,031
Mt. LassicSix Rivers National Forest6,643
Orleans Mtn. BSix Rivers National Forest17,183
Orleans Mtn. CSix Rivers National Forest15,589
PattisonShasta-Trinity National Forest29,299
Pilot CreekSix Rivers National Forest9,192
Salt GulchShasta-Trinity National Forest6,511
Snow MountainMendocino National Forest14,457
SoliderSix Rivers National Forest14,918
West BeegumShasta-Trinity National Forest5,198
References (4)
  1. 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.
  2. Global Biodiversity Information Facility (GBIF). 2015. GBIF data accessed through GeoCAT portal. Online. Available: http://geocat.kew.org/ (accessed 2015).
  3. 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.
  4. 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.