Taxon Details

Sedum flavidum

pale yellow stonecrop

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Photo of Sedum flavidum
©2012 Julie Kierstead Nelson
Photo of Sedum flavidum
©2014 Julie Kierstead Nelson
Photo of Sedum flavidum
©2012 Julie Kierstead Nelson

Taxon Summary:

Sedum flavidum, commonly known as pale yellow stonecrop, is a perennial herb in the Crassulaceae that is found only in California. It occurs within Broadleafed upland forest, Chaparral, Lower montane coniferous forest, and Upper montane coniferous forest, growing at elevations from 355 to 2155 meters. Sedum flavidum is ranked 4.3, Plants of Limited Distribution, A Watch List; Not very threatened in California.

Lifeform: perennial herb
Blooming Period: May-Jul
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Elevation:
355 - 2155 meters
1165 - 7070 feet
General Habitats:
  • Broadleafed upland forest
  • Chaparral
  • Lower montane coniferous forest
  • Upper montane coniferous forest
Microhabitat Details:
Microhabitat:
  • Openings
  • Rocky
  • Serpentine
  • Talus
  • Volcanic
Notes:
Possibly threatened by horticultural collecting. Southern populations in Glenn and Colusa counties need more study. See Phytotaxa 368: 1–61 (2018) for taxonomy.
Threats:
Taxonomy:
Threat List Total: 5
Total EOs % of EOs
EOs with Threat Listed: 20 30 %
THREAT LIST:
Logging 10 14%
Road/trail construction/maint. 8 11%
Mining 5 7%
Other 1 1%
Grazing 1 1%
Total Occurrences: 67
Element Occurrence Ranks:
A B C D X U
5 9 2 0 0 51
Occurrence Status:
Historical >20 Years 67
Recent <=20 Years 0
Presence:
Presumed Extant 67
Possibly Extirpated 0
Presumed Extirpated 0
California Endemic:
California Island:
States: Name (Code)
California (CA)
California Counties and Islands: Name (Code)
Colusa (COL), Glenn (GLE), Humboldt (HUM), Tehama (TEH), Trinity (TRI)
Quads: Name (Quad Code)
Black Lassic (4012335), Black Rock Mtn. (4012321), Board Camp Mtn. (4012366), Chanchelulla Peak (4012248), Dinsmore (4012345), Dubakella Mtn. (4012342), Forest Glen (4012333), Four Corners Rock (4012312), Fouts Springs (3912236), Grouse Mtn. (4012376), Halfway Ridge (4012353), Hennessy Peak (4012375), Hyampom (4012354), Lord-ellis Summit (4012387), Mad River Buttes (4012367), Naufus Creek (4012343), North Yolla Bolly (4012228), Plaskett Meadows (3912267), Pony Buck Peak (4012331), Sims Mountain (4012365), Smoky Creek (4012332), St. John Mtn. (3912246), Swim Ridge (4012322), Wildwood (4012341), Willow Creek (4012386)
Notes:
Definitions of codes following a county and/or quad:
* Presumed extirpated
(?) Occurrence confirmed, but possibly extirpated
Quad and county data is imported from the CNDDB. Species may be present in other areas where conditions are favorable. These data should NOT be substituted for pre-project review or for on-site surveys.
Presumed Extant
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