Species Details

Sedum laxum ssp. heckneri

Heckner's stonecrop

  Download Report   Calflora     eFlora     CCH     CalPhotos
Photo of Sedum laxum ssp. heckneri
© 2010 Susan Erwin
Photo of Sedum laxum ssp. heckneri
©2021 Scot Loring
Photo of Sedum laxum ssp. heckneri
© 2021 Scot Loring
Scientific Name:
Sedum laxum (Britt.) Berger ssp. heckneri (Peck) Clausen
Common Name:
Heckner's stonecrop
Family: Crassulaceae
Element Code: PDCRA0A0L3
USDA Plants Symbol: SELAH
Synonyms/Other Names:
Lifeform: perennial herb
Blooming Period: Jun-Jul
100 - 2100 meters
330 - 6890 feet
General Habitat:
  • Lower montane coniferous forest
  • Upper montane coniferous forest
General Micro Habitat:
Micro Habitat:
  • Gabbroic (sometimes)
  • Serpentinite (sometimes)
Subspecies are somewhat indistinct. Endangered in OR. See Proceedings of the Biological Society of Washington 50:121 (1937) for original description, and Sedum of North America North of the Mexican Plateau, p. 391-393 (1975) by R.T. Clausen for taxonomic treatment.
Total Occurrences: 0
Element Occurrence Ranks:
0 0 0 0 0 0
Occurrence Status:
Historical >20 Years 0
Recent <=20 Years 0
Presumed Extant 0
Possibly Extirpated 0
Presumed Extirpated 0
California Endemic:
California Island:
States: Name (Code)
California (CA), Oregon (OR)
California Counties and Islands: Name (Code)
Del Norte (DNT), Humboldt (HUM), Siskiyou (SIS), Trinity (TRI)
Quads: Name (Quad Code)
Black Lassic (4012335), Board Camp Mtn. (4012366), Clear Creek (4112364), Dutch Creek (4112381), English Peak (4112342), Figurehead Mtn. (4112383), Fish Lake (4112336), Forks of Salmon (4112333), Grouse Mtn. (4012376), Happy Camp (4112374), High Plateau Mtn. (4112388), Hoopa (4112316), Hopkins Butte (4112325), Johnsons (4112337), Kangaroo Mtn. (4112382), Lonesome Ridge (4112346), Mount Eddy (4112234), Naufus Creek (4012343), Orleans (4112335), Orleans Mtn. (4112334), Ruth Reservoir (4012334), Salmon Mtn. (4112324), Seiad Valley (4112372), Shelly Creek Ridge (4112387), Slater Butte (4112373), Somes Bar (4112344), South China Mtn. (4112235), Trinity Mtn. (4112314), Ukonom Mtn. (4112354), Weitchpec (4112326), Willow Creek (4012386)
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
Counties   Quads