]> A barcode-00414315 United States of America California Rock Creek, desert slopes of the San Gabriel Mountains Ambrosia salsola (Torrey & A. Gray ex A. Gray) Stother & B. G. Baldwin (Torrey & A. Gray ex A. Gray) Stother & B. G. Baldwin 2013-01-22 13:28:44 L. Abrams & E. A. McGregor