Flora of North America species comparison

greenish cinereous.

usually obviously flexuous, 15–30(–40) cm.

single or few to many.

odd-pinnate, subsessile to petiolate;

leaflets (3–)7–25(–31), sometimes decurrent.

(7–)11–17, blades mostly linear or narrowly oblong-oblanceolate.

12–26-flowered;

axis 2.5–9.5 cm in fruit.

loosely flowered, flowers ascending, spreading, or declined.

2.5–7 cm.

7–9 mm;

calyx 3.3–4.1 mm, tube 1.9–2.3 mm, lobes 0.7–1.1(–1.4) mm;

corolla banner abruptly recurved through 90°;

keel very strongly incurved through 120°, semiorbiculate, 5–5.5 mm.

purple to pink or pink-purple, purplish, ochroleucous, yellowish, or whitish, banner recurved through 45–90°, keel apex obtuse or acute-triangular.

tubes shallowly to deeply campanulate or subcylindric.

oblong-ellipsoid, turgid or inflated, 11–15(–20) × 3–4(–4.5) mm, strigulose;

sessile.

persistent, sessile or subsessile to stipitate, spreading to declined, deflexed, or pendulous, oblong, ellipsoid, subglobose, or cylindroid, sometimes bladdery-inflated, 3-sided, subterete, or compression lateral or dorsiventral, unilocular.

12–18.

4–36.

basifixed.

connate at proximal nodes, distinct ± distally.