For Pleea
Barger, T.W., C.A. Davis, B. Finzel, B. Garland, A. Hayes, A.R. Schotz, P. Thompson, G. Todia, and N.D. Yawn. 2023. New and noteworthy vascular plant records for Alabama. Phytoneuron 2023-14: 1-6. Published 17 February 2023. ISSN 2153 733X
Packer, J.G. 2002a. Pleea. In Flora of North America Editorial Committee. 2002a. Flora of North America north of Mexico. Volume 26, Magnoliophyta: Liliidae: Liliales and Orchidales. Oxford Univ. Press, New York, NY. 723 pp.
Tamura. 1998. In Kubitzki, K., ed. 1998a. The families and genera of vascular plants. III. Flowering plants – Monocotyledons – Lilianae (except Orchidaceae). Springer, Berlin. 478 pp.
Zomlefer, W.B. 1997c. The genera of Tofieldiaceae in the southeastern United States. Harvard Papers in Botany 2: 179-194.
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