J. K.  Wipff, ?Tragus?, in Flora of North America North of Mexico, vol 25, Magnoliophyta: Commelinidae (in part): Poaceae, part 2., M. E.  Barkworth and al, et, Eds. 2003, pp. 278-281.

J. W.  Vickery, ?Gramineae?, Flora of New South Wales, vol. 19(2), pp. 125-306, 1975.

W. D.  Clayton and Richardson, F. R., ?Studies in the Gramineae: XXXII. The tribe Zoysieae?, Kew Bulletin, vol. 28, pp. 37-48, 1973.

S. T.  Blake, ?Studies on Queensland Grasses II?, Papers, Department of Biology, University of Queensland., vol. 1 (18), pp. 1-22, 1941.

A. M.  Anton, ?The genus Tragus (Gramineae)?, Kew Bulletin, vol. 36, pp. 55-61, 1981.