Monographs Details: Lotus mearnsii (Britton) Greene x L. wrightii (A.Gray) Greene
Authority: Isely, Duane. 1981. Leguminosae of the United States. III. Subfamily Papilionoideae: tribes Sophoreae, Podalyrieae, Loteae. Mem. New York Bot. Gard. 25 (3): 1-264.
Discussion:Plants bushy, probably spreading; leaflets as Lotus wrightii but broader and pubescent; umbels pedunculate, 2-3 flowered; legume narrower than that of L. mearnsii. “Hutchinson s.n. Globe, Arizona, April 1930” is so annotated by Ottley. I agree on a speculative basis.