Calflora, a 501c3 non-profit
Distribution by County   6921    
Psorothamnus arborescens  (A. Gray) Barneby  var. simplicifolius  (Parish) Barneby
California indigo bush,   California indigobush
Psorothamnus arborescens var. simplicifolius is a shrub that is native to California, and endemic (limited) to California.
Record Count by County

Riverside: 119 San Bernardino: 49 Sonoma: 1

Suggested Citation
Calflora: Information on California plants for education, research and conservation, with data contributed by public and private institutions and individuals, including the Consortium of California Herbaria. [web application]. 2024. Berkeley, California: The Calflora Database [a non-profit organization]. Available: https://www.calflora.org/   (Accessed: 03/29/2024).