Author as E. & E. Uromyces scaber Ell. & Ev. = Puccinia substerilis Ell. & Ev. var. substerilis see Cummins The Rust Fungi of Cereals, Grasses & Bamboos p.290 1971
isotype
T. D. A. Cockerell
62
1888-10-00
Oct 1888
United States of America, Colorado, Custer Co., Swift Creek