Species Details

Sedum laxum ssp. heckneri

Heckner's stonecrop

Download Report Calflora eFlora CCH CalPhotos

Classification

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:

Conservation Status

CA Rare Plant Rank:	4.3
Fed List:	None
State List:	None
Global Rank:	G5?T4
State Rank:	S4
Other Status:
CRPR Changes:
Add Date:	1980-01-01
Date Edited:	2023-09-05

Ecology and Life History

Lifeform: perennial herb

Blooming Period: Jun-Jul

Elevation:
100 - 2100 meters
330 - 6890 feet

General Habitats:

Lower montane coniferous forest
Upper montane coniferous forest

Microhabitat Details:

Microhabitat:

Gabbroic (sometimes)
Serpentine (sometimes)

Notes

Notes: 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.
Threats:
Taxonomy:

Threat List Data from the CNDDB

THREAT LIST:
Threat List Total:	0
	Total EOs	% of EOs
EOs with Threat Listed:	0	0 %

Occurrence Data from the CNDDB

Element Occurrence Ranks:
Total Occurrences:					0
A	B	C	D	X	U
0	0	0	0	0	0

Occurrence Status:
Historical >20 Years	0
Recent <=20 Years	0

Presence:
Presumed Extant	0
Possibly Extirpated	0
Presumed Extirpated	0

Location

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)
Bark Shanty Gulch (4112345), Bear Peak (4112365), Black Lassic (4012335), Board Camp Mtn. (4012366), Broken Rib Mtn. (4112386), Chimney Rock (4112356), Clear Creek (4112364), Denny (4012384), Devils Punchbowl (4112376), Dillon Mtn. (4112355), 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), Ironside Mtn. (4012374), Johnsons (4112337), Kangaroo Mtn. (4112382), Lonesome Ridge (4112346), Lord-ellis Summit (4012387), Mount Eddy (4112234), Naufus Creek (4012343), Orleans (4112335), Orleans Mtn. (4112334), Preston Peak (4112375), Ruth Reservoir (4012334), Salmon Mtn. (4112324), Salyer (4012385), Seiad Valley (4112372), Shelly Creek Ridge (4112387), Ship Mountain (4112367), Slater Butte (4112373), Somes Bar (4112344), South China Mtn. (4112235), Summit Valley (4112357), Trinity Mtn. (4112314), Ukonom Mtn. (4112354), Weitchpec (4112326), 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.

Regional Map

Map

Presumed Extant

Click on quad for name. Hold Shift Key to use mouse scroll wheel

Selected References

Other:

USFS Potential Species of Conservation Concern Profile