Petalostemon multiflorus

Petalostemon multiflorus Nutt. Jour. Acad. Phila 7:92. 1834.
Kuhnistera multiflora A. Heller, Mem. Torrey Club S: 197. 1894. Kuhnistera Candida multiflora Rydb. Contr. U. S. Nat. Herb. 3: 154. 1895.
A perennial, with a woody caudex; stems several, 3-6 dm. high, glabrous, grooved, much branched, the upper branches short and with few reduced leaves; leaves numerous, 2-4 cm. long, spreading; stipules lance-subulate; leaflets 3-9, linear, linear-oblong or linear-oblanceolate, obtuse or mucronate, often involute, conspicuously glandular-dotted beneath, glabrous, 6-12 mm. long; spikes usually numerous, subglobose, in fruit 8 mm. in diameter, 1 cm. long; bracts rhombic-lanceolate, with subulate tip, shorter than the calyces, deciduous; calyx 3 mm. long; tube glabrous, strongly 10-ribbed; lobes triangular-lanceolate, 1 mm. long, ciliolate on the margins; corolla white; blade of the banner reniform, 2-2.5 mm. long, 3 mm. broad, the claw 3 mm. long; blades of the other petals elliptic, 3 mm. long, the claws 1.5 mm. long; pod obliquely obovoid, 3.5 mm. long, the beak at right angles to the axis.
Type locality: Plains of Red River [Arkansas?]. Distribution: Missouri and Kansas to Arkansas and Texas.