Monographs Details: Lotus stipularis var. ottleyi Isely
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.
Description:Distribution and Ecology - Range as given in key. Lower to middle elevations with pine; stream beds, irrigation ditches, serpentine (habitat data scanty). Ca. 2000-4000 ft. (March-) April-May.

Discussion:Interior and montane Lotus stipularis consistently has well-developed stipules, and is wiry-stemmed compared with its coastal range counterpart. Similar to type no 4 of var stipularis listed following, it includes plants that are: a. Punctate, zig-zag stemmed, thinly pubescent; b. The same but not punctate; and c. Neither punctate nor zig-zag-stemmed but pubescent.