Lumholtz's Prairie Clover

Parosela lumholtzii (Rob. & Fern.) Vail, Bull. Torrey Club 26: 117. 1899.
Dalea Lumholtzii Rob. & Fern. Proc. Am. Acad. 301 15 1894 farosela arizonica Vail, Bull. Torrey Club 24: 14. 1897 Dalea arizonica K. Schumann, Bot. Jahresb. 27': 493. 1901.
A perennial, with a suffruticose branched caudex; stems 1.5-3 dm. high puberulent sparingly glandular-dotted; leaves ascending, 2-4 cm. long; stipules subulate, minute; rachis sparingly pubescent or glabrate, sparingly gland-dotted; stipels gland-like; leaflets 17-27 linear, 4-6 mm. long, obtuse, glabrous or sparingly minutely silky when young; peduncles terminating the branches, 3-7 cm. long; spikes dense, subglobose or short-oblong, 1 cm long or less; bracts silky on the margins and near the base, glabrate on the back; calyx-tube sparingly silky, 10-ribbed, 2 mm. long; lobes lanceolate, about 1 mm. long, acute; blade of the banner obovate, subcordate at the base, 2.5 mm. long, the claw 2 mm. long; blades of the wings 2.5-3 mm. long, those of the keel-petals broader, apparently distinct, the claws of both 2 mm. long; pod densely pubescent at the summit.
Type locality: Los Pinitos, Sonora. Distribution: Sonora and Arizona.

Perennial, Herbs, Taproot present, Nodules present, Stems erect or ascending, Stems or branches arching, spreading or decumbent, S tems less than 1 m tall, Plants gland-dotted or with gland-tipped hairs, Stems solid, Stems or young twigs glabrous or sparsely glabrate, Stems or young twigs sparsely to densely hairy, Leaves alternate, Leaves petiolate, Stipules inconspicuous, absent, or caducous, Stipules setiform, subulate or acicular, Stipules deciduous, Stipules free, Leaves compound, Leaves odd pinnate, Leaf or leaflet margins entire, Leaflets opposite, Leaflets 10-many, Leaves glandular punctate or gland-dotted, Leaves glabrous or nearly so, Inflorescences spikes or spike-like, Inflorescence terminal, Bracts conspicuously present, Bracteoles present, Calyx 5-lobed, Calyx glabrous, Petals separate, Corolla papilionaceous, Petals clawed, Petals white, Petals blue, lavander to purple, or violet, Petals bicolored or with red, purple or yellow streaks or spots, Banner petal narrow or oblanceolate, Banner petal ovoid or obovate, Wing petals narrow, oblanceolate to oblong, Wing tips obtuse or rounded, Keel tips obtuse or rounded, not beaked, Stamens 9-10, Stamens monadelphous, united below, Filaments glabrous, Style terete, Fruit a legume, Fruit unilocular, Fruit indehiscent, Fruit elongate, straight, Fruit oblong or ellipsoidal, Fruit enclosed in calyx, Fruit glabrous or glabrate, Fruit hairy, Fruit 1-seeded, Seeds reniform, Seeds cordiform, mit-shaped, notched at one end, Seed surface smooth, Seeds olive, brown, or black.