Known from approximately twenty occurrences. Threatened by pipeline construction. Possibly threatened by road construction, road maintenance, and vehicles. Closely related to C. staticoides. See Proceedings of the American Academy of Arts and Sciences 12:270 (1877) for original description, and Phytologia 66(2):163-164 (1989) for taxonomic treatment.
California Counties and Islands:name (code) Monterey (MNT), San Luis Obispo (SLO)
Quads:name (DWR code) USGS code Arroyo Grande NE (221A) 35120B5, Pismo Beach (221B) 35120B6, Atascadero (246B) 35120D6, San Luis Obispo (246C) 35120C6, Lopez Mtn. (246D) 35120C5, Morro Bay North (247A) 35120D7, Morro Bay South (247D) 35120C7, Burro Mountain (296D) 35121G3
Definitions of codes preceding a county and/or quad:
Uncertain about distribution or identity
Uncertain about distribution, but presumed extirpated if once present
Occurrence confirmed, but possibly extirpated
Species may be present in other areas where conditions are favorable.
35120B5=Arroyo Grande NE (221A) 35120B5;35120B6=Pismo Beach (221B) 35120B6;35120D6=Atascadero (246B) 35120D6;35120C6=San Luis Obispo (246C) 35120C6;35120C5=Lopez Mtn. (246D) 35120C5;35120D7=Morro Bay North (247A) 35120D7;35120C7=Morro Bay South (247D) 35120C7;35121G3=Burro Mountain (296D) 35121G3