Memoirs of The New York Botanical Garden
Gleason, Henry A. & Cronquist, Arthur J. 1991. Manual of Vascular Plants of Northeastern United States and adjacent Canada
Details: Lotus greenei Ottley x L. oroboides (Kunth) Ottley
Isely, Duane. 1981. Leguminosae of the United States. III. Subfamily Papilionoideae: tribes Sophoreae, Podalyrieae, Loteae. Mem. New York Bot. Gard. 25 (3): 1-264.
Lotus greenei Ottley x L. oroboides (Kunth) Ottley
Ottley (1944) reported hybridization and annotated several specimens as Lotus greenei x oroboides or L. greenei x puberulus. I have referred most of these to L. oroboides. Some problematic specimens are noted under L. greenei.