For Nolina
Bogler In Kubitzki, K., ed. 1998a. The families and genera of vascular plants. III. Flowering plants – Monocotyledons – Lilianae (except Orchidaceae). Springer, Berlin. 478 pp.
Hess, W.J. 2002b. Nolina. 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.
Judd, W.S. 2003. The genera of Ruscaceae in the southeastern United States. Harvard Papers in Botany 7: 93-149.
Rojas-Piña, V., M.E. Olson, L.O. Alvaradu-Cárdenas, & L.E. Eguiarte. 2014. Molecular phylogenetics and morphology of Beaucarnea (Ruscaceae) as distinct from Nolina, and the submersion of Calibanus into Beaucarnea. Taxon 63: 1193-1203.