Compact Prairie Clover

Petalostemon compactus (Spreng.) Swezey, Neb Fl. PI. 6. 1891.
Dalea compacta Spreng. Syst. 3: 327. 1826.
Petalostemon macrostachyus Torr. Ann. Lye. N. Y. 2: 176. 1827.
Kuhnistera compacta Kuntze, Rev. Gen. 192. 1891.
A perennial, with a woody tap-root; stems several, 4-8 dm. high, glabrous, striate, leafy; leaves numerous, ascending, 5-8 cm. long; stipules subulate; leaflets 5-7, oblong, oblong-lanceolate, or linear-oblong, acute or obtuse, short-petiolulate, glabrous, glandular-dotted beneath, light-green above, pale beneath, 1.5-2.5 cm. long; spikes cylindric, dense, In fruit 1012 mm. thick, 2-15 cm. long; bracts linear-lanceolate, attenuate, densely pubescent with long silky hairs; calyx 4.5 mm. long, densely silky-villous with brown hairs; lobes narrowly lanceolate, equaling the tube; corolla white or yellowish-white; blade of the banner cordate, 2 mm. long, the claw 4 mm. long; blades of the other petals lanceolate or oblanceolate, 2 mm. long, the claws about 1 mm. long; pod broadly obliquely obovate, almost half-round, 3 mm. long, sparingly pubescent.
Type locality: "Rio Roxo, Arkansas" [? Canadian River. Oklahoma]. Distribution: Nebraska. Colorado, and Wyoming; (Oklahoma?).

Petalostemon decumbens Nutt. Jour. Acad. Phila
7: 93. 1834.
Kuhnistera decumbens Kuntze. Rev. Gen. 192. 1891.
A perennial; stems solitary or several, decumbent or ascending, glabrous or sparingly pubescent, striate; leaves numerous, 3-5 cm. long, ascending; stipules subulate; leaflets 5-7, linear or linear-oblong, 8-20 mm. long, acute or mucronate, slightly involute on the margins, sparingly pilose, glandular-dotted beneath; spikes ovoid or short-oblong, 1-2 cm. long, fully 1 cm. thick in fruit; bracts lanceolate, attenuate, much longer than the calyces and buds; calyx with short silky appressed pubescence, 4 mm. long; lobes lanceolate or ovate-lanceolate, shorter than the tube, acute; corolla pink or rose-purple; blade of the banner oblong-ovate, cordate at the base, 3 mm. long, equaling the claw; blades of the other petals linear-oblong, fully 3 mm. long, the claws less than 1 mm. long; pod broadly and obliquely obovate, strigillose.
Type locality: Plains of Red River [Arkansas?]. Distribution: Arkansas and Texas.