UCR - University of California, Riverside Herbarium - Vascular Plants (UCR)
UCR-BPS-136251
UCR-136251
Lupinus excubitus M.E. Jones
Fabaceae
A.C. Sanders
27572
2004-04-20
2004-4-20
United States, California, Riverside, Santa Rosa Plateau, 0.5 km west of Tenaja Road and just north of the San Diego county line
33.49278 -117.36556
640 meters (2099ft)
Steep, bouldery granitic slope with chaparral; limited coastal sage scrub at foot of slope; gentle slope with basalt substrate and grass; perennial (Stipa pulchra) grassland on valley bottom. Loam soil throughout. Minor draingeways on valley bottom, mostly showing recent erosion (small arroyo formation, headward cutting) due to surrounding development and alteration of runoff volume, some cut down to granite bedrock in places.
Flowering & Fruiting
Scarce 1 m high subshrub among basalt rocks on hillside; fls. blue-purple.