Horkelia bolanderi subsp. clevelandii (Greene) D.D.Keck

RANCHO SANTA ANA BOTANIC GARDEN
Flora of San Diego County, California, USA
ROSACEAE
Horkelia clevelandii (E. Greene) Rydb.
Anza Bench region (extensive upland area north of Palomar
Mountains and Warner Valley, and south of the San Jacinto
Mountains) northwest of Hot Springs Mountain, along 9S05 ca.
1.5 miles northwest of Indian Flats Campground, Cleveland
National Forest; in low-gradient drainage which heads southeast to
the San Luis Rey River. Near 33°21’40”N, 116°40’17”W. T9S
R3E SW 1/4 NE 1/4 NE 1/4 sec. 28. Elev. 3840 ft.
Ancient erosional surface cut into granitic rock. Extensive boulder
outcrops and many shallow-gradient drainages present.
Dominant scrub vegetation includes Adenostoma sparsifolium, A.
fasciculatUm, Ceanothus greggii var. perplexans, Quercus
cornelius-mulleri, Yucca whipplei, Y. schidigera, and
Arctostaphylos glauca. Meadow-like swale along low-gradient
stream with Muhlenbergia rigens, Juncus mexicanus, Sidalcea
malvaeflora, and Sisyrinchium bellum. Surrounding drier benches
with Quercus agrifolia and Solidago californica.
Perennial herb, flowers white. Occasional on benches and in
meadow areas.
Steve Boyd 8810
17 May 1996
02811612