Psorothamnus arborescens var. minutifolius (Parish) Barneby

Psorodendron wheeleri (Vail) Rydberg
Parosela Wheeleri Vail, Bull. Torrey Club 24: 17. 1897.
A low shrub, with short branches, in age straw-colored, strigose when young, with raised glands; leaves 1-2.5 cm. long, strigose; rachis flattened; leaflets 5-7, obovate or oval, sparingly strigose and conspicuously glandular-dotted, 5-8 mm. long, 3-6 mm. wide; racemes 2-8 cm. long; rachis with subulate glands, more or less spinescent; bracts subulate, 2-3 mm. long; pedicels about 0.5 mm. long; bractlets minute, subulate; calyx glabrate except the ciliate margins of the lobes; tube turbinate, 3 mm. long, sparingly and minutely glandular-dotted; lobes 2 mm. long, the upper two triangular-ovate, twice as broad as the rest, which are lancesubulate; corolla purple; petals subequal, the blades 4-5 mm. long, the claws 2 mm. long; blade of the banner suborbicular, notched, those of the other petals broadly obliquely obovate, with a large rounded basal lobe; pod obliquely ovate, nearly glabrous, conspicuously glandulardotted, the body S mm. long or more, equaled by the beak.
Type locality: Nevada.
Distribution: Nevada, and Owen's Valley, California.