For Digitaria
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Vega, A.S., G.H. Rua, L.T. Fabbri, and Z.E. Rúgolo de Agrasar. 2009. A morphology-based cladistic analysis of Digitaria (Poaceae, Panicoideae, Paniceae). Syst. Bot. 34: 312-323.
Webster, R.D. 1980. Distribution records for Digitaria bicornis in eastern United States. Sida 8: 352-353.
Webster, R.D. 1987. Taxonomy of Digitaria section Digitaria in North America (Poaceae: Paniceae). Sida 12: 209-222.
Wipff, J.K. 1996b. Nomenclatural combinations in Digitaria (Poaceae: Paniceae). Phytologia 80: 348-349.
Wipff, J.K. 2003e. Digitaria. In Flora of North America Editorial Committee. 2003a. Flora of North America north of Mexico. Volume 25, Magnoliophyta: Commelinidae (in part): Poaceae, part 2. Oxford Univ. Press, New York, NY. 783 pp.
Wipff, J.K., and R.B. Shaw. 2018b. Leptoloma syrticola (Poaceae: Panicoideae): A new species from Texas and new combinations in Leptoloma and Trichachne. Phytoneuron 2018-46: 1-10. Published 24 July 2018. ISSN 2153 733X
Wipff, J.K., and S.L. Hatch. 1994. A systematic study of Digitaria sect. Pennatae (Poaceae: Paniceae) in the New World. Syst. Bot. 19: 613-627.
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