Monographs Details: Lotus crassifolius (Benth.) Greene var. crassifolius
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 and habitat as entered under the species.

Discussion:Hosackia crassifolia Benth. (1837); L. crassifolius (Benth.) Greene (1890). H. stolonifera Lindl. (1837). H. platycarpa Nutt. (1838). The variation in the position and size of the bract of Lotus crassifolius is possibly suggestive of introgression from L. pinnatus or L. formosissimus, but features of these species are not otherwise evident. Ovule number is 17-26 in Oregon and northern California, but usually 25-35 in the southern part of the range. J. R. Larsen (1976), a range conservationist, has stated that Lotus crassifolius is one of the species under trial for facilitating revegetation following logging clear-cutting.