Species Details

Coryphantha alversonii

Alverson's foxtail cactus

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Lifeform: perennial stem
Blooming Period: Apr-Jun(Sep-Oct)
Elevation:
75 - 1525 meters
245 - 5005 feet
General Habitat:
  • Mojavean desert scrub
  • Sonoran desert scrub
General Micro Habitat:
Micro Habitat:
  • Granitic (usually)
  • Rocky (sometimes)
  • Sandy (sometimes)
Notes:
Collection from AZ misidentified. Possibly threatened by horticultural collecting, vehicles, and recreational activities. A synonym of Escobaria vivipara var. alversonii in The Jepson Manual (1993).
Threats:

Taxonomy:

Other:
Total Occurrences: 55
Element Occurrence Ranks:
A B C D X U
5 5 6 0 0 39
Occurrence Status:
Historical >20 Years 55
Recent <=20 Years 0
Presence:
Presumed Extant 55
Possibly Extirpated 0
Presumed Extirpated 0
California Endemic:
California Island:
States: Name (Code)
California (CA)
California Counties and Islands: Name (Code)
Riverside (RIV), San Bernardino (SBD)
Quads: Name (Quad Code)
Ash Hill (3411661), Big Maria Mts. NE (3311485), Big Maria Mts. NW (3311486), Big Maria Mts. SW (3311476), Big Maria Mts.SE (3311475), Blythe NE (3311465), Bristol Lake NW (3411546), Bristol Lake SW (3411536), Buzzard Spring (3311575), Cadiz Valley SE (3411513), Cadiz Valley SW (3411514), Clarks Pass (3411515), Cleghorn Lakes (3411537), Corn Spring (3311563), Cottonwood Basin (3311568), Cottonwood Spring (3311567), Dale Lake (3411526), Deadman Lake NE (3411641), Deadman Lake NW (3411642), Deadman Lake SE (3411631), Desert Center (3311564), East of Red Canyon (3311555), Hayfield (3311566), Hayfield Spring (3311565), Hector (3411674), Lead Mountain (3411548), Lead Mountain SW (3411538), Lead Mtn. NE (3411547), Little Maria Mts. (3311488), Ludlow (3411662), Ludlow SE (3411651), Malapai Hill (3311681), Mescal Range (3511545), Morgans Well (3411652), Palen Pass (3311581), Parker SW (3411414), Pilot Mountain (3311553), Pinto Wells (3311584), Poston (3311484), Queen Mtn. (3411611), Red Cloud Canyon (3311554), Sleeping Beauty (3411673), Styx (3311487), Twentynine Palms (3411621), Twentynine Palms Mtn. (3411518), Victory Pass (3311574), Vidal (3411415), West of Broadwell Mesa (3411682), West of Palen Pass (3311582), Whipple Wash (3411433)
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.

Map

Presumed Extant
Counties   Quads