Reference:Griffiths1912a
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Verbatim text: Griffiths, D. 1912. The grama grasses: Bouteloua and related genera. Contr. U.S. Natl. Herb. 14:343-428
Author: Griffiths, D.
Year: 1912
Title: The grama grasses: Bouteloua and related genera
Journal: Contr. U.S. Natl. Herb
Volume: 14
Pages: 343–428