Ubiquity: Very uncommonDistritution: Known only from Diamond Mt. Road & American Canyon. Once reported growing on the Soscol Plains
Plant Communities: Blue Oak Woodland
Habitats: Moist, sunny, disturbed places
Elevations: 10-350'
Comments: Confirmation and collection needed. Hybridizes with A. menziesii var. intermediaUpdated: 1/5/98
Ubiquity: CommonDistritution: NE 1/4 & W 1/2 except Napa Marsh
Plant Communities: Blue Oak Woodland & Regular Chaparral
Habitats: Dry, sunny, clayey, grassy flats & swales; in disturbed places
Elevations: 100-1600'
Comments: Includes A. retrorsaUpdated: 1/5/98
Ubiquity: CommonDistritution: Throughout, except Napa Marsh
Plant Communities: Many including Ruderal
Habitats: Dry, sunny, clayey slopes/valley floors/ & cultivated fields
Elevations: 100-2000'
Comments: Hybridizes with A. lycopsoidesUpdated: 1/5/98
Ubiquity: Very uncommonDistritution: Known only from the Napa Marsh
Plant Communities: Coastal Salt Marsh
Habitats: Dry, sunny, sandy, saline dikes & dunes
Elevations: 10'
Comments: Confirmation and collection neededUpdated: 1/5/98