Hitchcock et al., 1951. USDA Document reference Hitchcock, A. S; Chase, A., 1951. Manual of the grasses of the United States. USDAWeb https://books.google.fr/books?id=eNRxmAQArOkCCitation key Hitchcock et al., 1951Datasheets Crimson bluestem (Schizachyrium sanguineum)