Leptosiphon androsaceus Benth.

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RANCHO SANTA ANA BOTANIC GARDEN
Flora of San Diego County, California, USA
POLEMONIACEAE
Linanthus androsaceus (Benth.) E. Greene
ssp. luteolus (E. Greene) Mason
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 califomica.
Annual, flowers bright yellow. Common on benches and sandy
openings along stream.
Steve Boyd 8812
17 May 1996
03302038