Ubiquity: CommonDistritution: N1/2, SW1/4 except Napa Marsh
Plant Communities: Forests & Regular Chaparral
Habitats: Dry, sunny or shaded, forested or brushy slopes; in volcanic and sedimentary areas. Occasionally on road cuts and even in areas of serpentine.
Elevations: 350-2800'
Comments: Includes A. d. var. eradicataUpdated: 2/25/98