RSA - California Botanic Garden Herbarium (RSA:RSA)
RSA0159494
aca5fd63-7798-4608-b0b2-572dda94c778
561094
Arctostaphylos rainbowensis J.E. Keeley & A. Massihi
Ericaceae
Walter S. Judd (2018)
Steve Boyd
6987
1992-04-21
United States, California, San Diego, Southern Santa Ana Moutains, San Mateo Canyon Wilderness Area. Northwestwern summit and slopes of Miller Mountain.
T7S R5W S34 N1/2 S1/4 SW1/4
[also] T8S R5W S10 N1/2 NW1/4
793-884 meters
2600-2900ft.
Mostly clay soils derived from volcanic substrates. Vegetation of a mosaic of native grassland, Quercus agrifolia woodland and chaparral dominated by Adenostoma fasciculatum, and Ceanothus crassifolius.
Shrub apparently with basal burl. Leaves, stems, and inflorescences glabrous. Fruit with a small, solid stone.