Lectotype : LT: Avena flavescens L.
LT designated by Hitchcock, U.S.D.A. Bull. 772: 107-109 (1920);
confirmed by Committee for Spermatophyta, Taxon 36: 75 (1987); See also
notes in Veldkamp (1983) where Besser (1827) is said to have
lectotypified the genus on the annual T. parviflorum
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Lectotype designated by: Hitchcock, A. S. 1920. The genera of grasses of the United States. U.S.D.A. Bull. (1915-23) 772: 108.