For Medicago
Isely, D. 1998. Native and naturalized Leguminosae (Fabaceae) of the United States (exclusive of Alaska and Hawaii). Monte L. Bean Life Science Museum, Brigham Young Univ., Provo, UT.
Small, E. 2023d. Medicago. Pp. 983-994. In Flora of North America Editorial Committee. 2023b. Flora of North America north of Mexico. Volume 11.2, Magnoliophyta: Fabaceae, part 2. Oxford Univ. Press, New York, NY. 543-1108 pp.
Woods, M. and J. Orcutt. 2017. The genus Medicago (Fabaceae) in Alabama. Phytoneuron 2017-52: 1-17. ISSN 2153 733X
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