Pinkglobe Prairie Clover

Petalostemon stanfieldii Small, Fl. SE. U. S. 631, 1332. 1903
A perennial, branched at the suffrutescent base; stems 1-3 dm. high, often branched, glabrous, terete, straw-colored; leaves numerous, 2-4 cm. long, ascending; stipules subulatefiliform; leaflets 3-5, linear or linear-filiform, 5-12 mm. long, acute, strongly involute, glabrous, conspicuously punctate; spikes long-peduncled, cylindric, in fruit about 7 mm. thick, 1-4 cm. long; bracts broadly obovate, abruptly acuminate, silky below, with dark glabrous tips; calyx silky-puberulent, with mostly appressed hairs, 3 mm. long; lobes triangular, about half as long as the tube; corolla rose-purple; blade of the banner cordate, 2 mm. long, fully as broad, the claw 3 mm. long; blades of the other petals oblong, rounded at the apex, truncate at the base, 3 mm. long, the claws less than 1 mm. long; pod 2 mm. long, pubescent, at least above, obliquely obovate.
Type locality: San Marcos. Texas. Distribution: Kansas to Texas.

Perennial, Herbs, Taproot present, Nodules present, Stems erect or ascending, Stems or branches arching, spreading or decumbent, Stems less than 1 m tall, Plants gland-dotted or with gland-tipped hairs, Stems solid, Stems or young twigs glabrous or sparsely glabrate, Leaves alternate, Leaves petiolate, Stipules inconspicuous, absent, or caducous, Stipules setiform, subulate or acicular, Stipules deciduous, Stipules free, Leaves compound, Leaves pinnately 3-foliolate, Leaves odd pinnate, Leaf or leaflet margins entire, Leaflets opposite, Leaflets 3, Leaflets 5-9, Leaves glandular punctate or gland-dotted, Leaves glabrous or nearly so, Inflorescences spikes or spike-like, Inflorescence terminal, Bracts conspicuously present, Calyx 5-lobed, Calyx hairy, Petals separate, Corolla papilionaceous, Petals clawed, Petals pinkish to rose, Petals blue, lavander to purple, or violet, 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, Fertile stamens 5, 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 1-seeded, Seeds reniform, Seeds cordiform, mit-shaped, notched at one end, Seed surface smooth, Seeds olive, brown, or black.