Parish's Chaenactis [Chaenactis parishii Gray]

Parish's Chaenactis [Chaenactis parishii Gray]

Listing CNPS List 4 R-E-D Code 1-1-2

State/Federal. Status -- /C3c ASTERACEAE May-Jul.

Global Rank G3? State Rank S?

Distribution: San Diego County, Riverside County; Baja California, Mexico

Habitat: A relatively low-growing chaparral, on the higher mountainous ridges overlooking the desert, is favored by Parish's Chaenactis. This suffruticose perennial grows in dry, rocky openings where there is limited competition from other plants. This is an unusual relictual species seemingly governed by summer rainfall which is now rare in the Peninsular Range. Sheephead rocky fine sandy loam is mapped for the western slope of Garnet Peak.

Known Sites: Chaenactis parishii grows in small, discrete populations on Garnet Peak. There are two known locales on Garnet Peak: one 1.25 miles west near Indian Potrero, the other 0.75 mile north at a site east of Sunrise Highway. Old reports are from Stonewall Peak and Cuyamaca Peak. It is also reported from the San Bernardino National Forest. Reports from Riverside County are from near Van Deventer Flats and Santa Rosa Mountain Truck Trail, east of Table Mountain in the Santa Rosa Mountains, at several locales between Forbes Ranch Road and Lake Hemet east of Highway 74, in the vicinity of Mountain Center, near Tahquitz Peak, and near Idyllwild. Parish's Chaenactis is locally well distributed in the chaparral along Santa Rosa Peak Road, west of the peak, in Riverside County.

Five Baja specimens are deposited in the herbarium of the San Diego Natural History Museum south to 30 54' North where collected by Moran (SD 79644) near La Grulla.

Status: Parish's Chaenactis populations are presumed stable in areas of transmontane habitat which have as yet received limited historical impacts. Recreational activities pose limited threats to specific populations. Significant portions of all large populations should be protected.


Copyright May 1994 Craig H. Reiser.

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