United States (North America)
-
Gleason, H. A. 1968. The Choripetalous Dicotyledoneae. vol. 2. 655 pp. In H. A. Gleason Ill. Fl. N. U.S. (ed. 3). New York Botanical Garden, New York.
http://www.tropicos.org/Reference/1704
-
Isely, D. 1981. Leguminosae of the United States. III. Subfamily Papilionoideae: Tribes Sophoreae, Podalyrieae, Loteae. Mem. New York Bot. Gard. 25(3): 1–264.
http://www.tropicos.org/Reference/446
-
Radford, A. E., H. E. Ahles & C. R. Bell. 1968. Man. Vasc. Fl. Carolinas i–lxi, 1–1183. University of North Carolina Press, Chapel Hill.
http://www.tropicos.org/Reference/636
-
Small, J. K. 1933. Man. S.E. Fl. i–xxii, 1–1554. Published by the Author, New York.
http://www.tropicos.org/Reference/1515
-
Fernald, M. 1950. Manual (ed. 8) i–lxiv, 1–1632. American Book Co., New York.
http://www.tropicos.org/Reference/1327
