References
For Astragalus
Barneby, R.C. 1964. Atlas of North American Astragalus. Mem. New York Bot. Garden 13: 1-1188. Google Scholar
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. Google Scholar
Turner, B.L., H. Nichols, G. Denny, and O. Doron. 2003a. Atlas of the vascular plants of Texas, Volume 1: Introduction, Dicots. Sida, Botanical Miscellany 24. Google Scholar
Welsh, S.L. 2023b. Astragalus. Pp. 584-900. 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. Google Scholar