For Festuca
Aiken, S.G., and S.J. Darbyshire. 1990. Fescue grasses of Canada. Agriculture Canada Publication 1844/E.
Darbyshire, S.J. 1993. Realignment of Festuca subgenus Schedonardus with the genus Lolium (Poaceae). Novon 3: 239-243.
Darbyshire, S.J., and L.E. Pavlick. 2007. Festuca. In Flora of North America Editorial Committee. 2007a. Flora of North America north of Mexico. Volume 24, Magnoliophyta: Commelinidae (in part): Poaceae, part 1. Oxford Univ. Press, New York, NY. 911 pp.
Lonard, R.I. 2007. Vulpia. In Flora of North America Editorial Committee. 2007a. Flora of North America north of Mexico. Volume 24, Magnoliophyta: Commelinidae (in part): Poaceae, part 1. Oxford Univ. Press, New York, NY. 911 pp.
Soreng, R.J., and E.E. Terrell. 1998. Taxonomic notes on Schedonorus, a segregate genus from Festuca or Lolium, with a new nothogenus, ×Schedololium, and new combinations. Phytologia 83: 84-86.
Tucker, G.C. 1996. The genera of Poöideae (Gramineae) in the southeastern United States. Harvard Papers in Botany 9: 11-90.
Voss, E.G., and A.A. Reznicek. 2012. Field Manual of Michigan Flora, Univ. of Mich. Press, Ann Arbor.
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