Accepted By:
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Fernald, M. 1950. Manual (ed. 8) i–lxiv, 1–1632. American Book Co., New York.
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Gleason, H. A. & A. J. Cronquist. 1968. The Pteridophytoa, Gymnospermae and Monocotyledoneae. 1: 1–482. In H. A. Gleason Ill. Fl. N.E. U.S.. New York Botanical Garden, New York.
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Gleason, H. A. & A. J. Cronquist. 1991. Man. Vasc. Pl. N.E. U.S. (ed. 2) i–910. New York Botanical Garden, Bronx.
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Great Plains Flora Association. 1986. Fl. Great Plains i–vii, 1–1392. University Press of Kansas, Lawrence.
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Hitchcock, A. S. 1951. Man. Grasses U.S. (ed. 2) 1–1051. U.S. Department of Agriculture, Washington, D.C.
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Moss, E. H. 1983. Fl. Alberta (ed. 2) i–xii, 1–687. University of Toronto Press, Toronto.
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Scoggan, H. J. 1978 [1979]. Pteridophyta, Gymnospermae, Monocotyledoneae. 2: 93–545. In Fl. Canada. National Museums of Canada, Ottawa.
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Voss, E. G. 1972. Gymnosperms and Monocots. i–xv, 1–488. In Michigan Fl.. Cranbrook Institute of Science, Bloomfield Hills, Michigan.
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