TAXONOMY OF GALACTIA (FABACEAE) IN THE USA GUY L. NESOM
Nesom, G.L. 2015. Taxonomy of Galactia (Fabaceae) in the USA. Phytoneuron 2015-42: 1–54. Published 15 Jul 2015. ISSN
2153 733X
http://www.phytoneuron.net/2015Phytoneuron/42PhytoN-GalactiaTaxonomy.pdf