UCR - University of California, Riverside Herbarium - Vascular Plants (UCR)
UCR0007494
UCR-BPS-153486
UCR-153486
Plagiobothrys acanthocarpus (Piper) I.M. Jtn.
Boraginaceae
Steve Boyd
10301
2000-04-15
2000-4-15
Ian G. Gillespie
United States, California, Riverside, Gavilan Hills region: S flank of Alberhill Mtn, just east of the heavily mined area
33.71208 -117.3775
T5S R5W sec26
463 meters (1519ft)
Deep adobe clay soils with cobbles and small boulders of andesitic rock, disturbed in 1991 by surface scraping, but now fairly well recovered. Open grassy areas with a diversity of annuals and perennial herbs, including Allium munzii, Harpagonella palmeri, Erodium cicutarium, Erodium brachycarpum, Lupinus succulentus, Achyrachaena mollis, Plantago erecta, Ancistrocarphus filagineus, Lasthenia californica, Lepidium nitidum, Sanicula bipinnatifida, Plagiobothrys acanthocarpus, Bromus mollis, Avena barbata, and Brassica geniculata. Rockier areas support open scrub of Eriogonum fasciculatum var. foliolosum and Artemisia californica.
Flowering & Fruiting
Annual; flowers white. Locally common in open areas, especially where exotic grass density was low.