The following Participating Institutions are custodians for this species in the CPC National Collection:
Rancho Santa Ana Botanic Garden
The conservation of Erigeron parishii is fully sponsored.
Naomi Fraga contributed to this Plant Profile.
Erigeron parishii (Parishs daisy) is a low growing perennial herb in the sunflower family (Asteraceae). This species commonly grows in pinyon-juniper, and Joshua tree woodland habitats, most commonly on carbonate, but occasionally on granite substrates in San Bernardino County, California. Most populations occur on the northern slope of the San Bernardino Mountains where outcrops of carbonate substrate run on an east-west axis (USFWS 1994). Erigeron parishii was listed as threatened by the federal government in 1994; limestone mining is the primary threat to this species (CNDDB 2007). Individual plants grow from a thick taproot, have silvery hairy linear leaves, and flower between May and August (Hickman 1993, Munz 1974).
Distribution & Occurrence
Erigeron parishii primarily occurs on carbonate substrates, but also occurs on soils derived from granite rock. Plants can be commonly found in loose alluvium near washes, canyon bottoms, or adjacent benches, but is also found on steep rocky slopes (USFWS 1994). This species grows in pinyon-juniper, and Joshua tree woodland habitats at elevations from 3700-6600 ft (1128-2012 m) (CNPS 2007).
|This species is known from 32 occurrences totaling more than 16,000 individuals at the time of its listing (USFWS 1994).|
Conservation, Ecology & Research
Neel, M.C. 2001. Patterns of allozyme diversity in the threatened plant Erigeron parishii (Asteraceae). American Journal of Botany. 88: 810-818.
Neel, M.C.; Cummings, M.P. 2003. Effectiveness of conservation targets in capturing genetic diversity. Conservation Biology. 17: 219-229.
United States Fish and Wildlife Service [USFWS]. 2002. Designation of critical habitat for five carbonate plants from the San Bernardino Mountains in southern California. Federal Register. 67: 59239-59241.
USFWS. 1994. Five plants from the San Bernardino Mountains in southern California determined to be threatened or endangered. Federal Register. 59, 163: 43652-43664.