RSA - California Botanic Garden Herbarium (RSA:RSA)
c9603e13-2276-4719-b0ba-11c497808421
645324
Plagiobothrys acanthocarpus (Piper) I.M. Johnston
Boraginaceae
Steve Boyd
10301
2000-04-15
Ian Gillespie
United States, California, Riverside, Gavilan Hills region: South flank of Alberhill Mountian, just east of the heavily mined area.; AlberhillNear 34° 42' 43.5''N 117° 22' 39.0''W
T5S R5W S26 NW 1/4 NW 1/4
meters
1520ft.
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.
Annual, flowers white. Locally common in open areas, especially where exotic grass density was low.