References
For Herbertia
Goldblatt, P. 2002c. Herbertia. 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. Google Scholar
Goldblatt, P., with J.C. Manning and P. Rudall. 1998. Iridaceae. Pp. 295-333. In Kubitzki, K., ed. 1998a. The families and genera of vascular plants. III. Flowering plants – Monocotyledons – Lilianae (except Orchidaceae). Springer, Berlin. 478 pp. Google Scholar
Keener, B.R., J.K. England, R. Sewell, B. Finch, G. Todia, W.M. Knapp, J.R. Burkhalter, K. Lybarger, and B. Finzel. 2024. Noteworthy collections from the Alabama flora (U.S.A.). J. Bot Res. Inst. Texas 18(1): 193-2004. Google Scholar