Monographs Details: Lotus nevadensis var. davidsonii (Greene) 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 - Transverse Ranges: Mt. Pinos, San Gabriel, San Antonio and San Bernardino Mts. Locally common, under pines, open dry slopes and flats to summits, extending lower with oaks. (4000-)5000-9000 ft. June-Aug.
Discussion:L. sulphureus Greene (1892) non Boiss. (1843); L. davidsonii Greene (1893); Syrmatium davidsonii (Greene) Hell. (1913); L. argophyllus var davidsonii (Greene) Jeps. (1936); Hosackia sulphurea (Greene) Abrams (1944); L. nevadensis var davidsonii (Greene) Isely (1978).
L. argophyllus var dec or us auct. pro parte.
Lotus nevadensis var davidsonii replaces var nevadensis, which lies both to the north and south of it, in the Transverse Ranges. Ottley (1923) treated it as a species; Jepson (1936) subordinated it to L. argophyllus; Munz (1959) reinstated it at the specific rank, but partially confused it with the lower elevation L. argophyllus var decorus. Lotus nevadensis var davidsonii is ideally a neat plant with small leaves, shortly peduncled umbels with few flowers that appear stubby because the standard is abruptly upturned at anthesis. But some specimens combine the characters of both vars nevadensis and davidsonii.
Distribution:United States of America North America