Dalea bicolor var. naviculifolia (Hemsl.) Barneby

Parosela naviculifolia (Hemsl.) Rose, Contr. U. S. Nat Herb. 10: 104. 1906.
Dalea naviculifolia Hemsl. Diag. PI. Nov. 7. 1878.
A diffusely branched shrub, prostrate or spreading, 3-5 dm. high; branches finely puberulent, conspicuously glandular-tubercled; leaves numerous, 1-2 cm. long; stipules subulate, 1-2 mm. long; rachis puberulent; stipels gland-like; leaflets 11-21, oblong, 2-3 mm. long, concave, puberulent above, glandular-dotted beneath, obtuse; peduncles terminating the branches, about 1 cm. long; spikes dense, 1-3 cm. long, about 8 mm. thick; bracts lance-ovate, acuminate, pubescent, deciduous; calyx brown, puberulent; tube campanulate, not strongly ribbed, puberulent and conspicuously glandular, 2 mm. long; lobes lance-ovate, acute, half as long as the tube, the lowest the longest ; banner white or ochroleucous, the blade round-cordate, emarginate, 3 mm. long and broad; wings and keel-petals purple, inserted just below the middle of the staminal tube, the blades fully 3.5 mm. long, the claws 1 mm. long; pod slightly puberulent above.
Type locality: Mexico. Distribution: Oaxaca.