]> GH barcode-01624561 United States of America Oklahoma 5 miles west of Guthrie, on highway #33 Calylophus drummondianus subsp. berlandieri (Spach) Towner & P. H. Raven (Spach) Towner & P. H. Raven 2020-05-05 09:13:23 M. Hopkins & M. Van Valkenburgh