Flora of North America species comparison

strigulose, hairs obscurely malpighian, silvery-silky, ± straight.

1–15(–22) cm.

few or several to many.

1.5–9(–12) cm;

leaflets (7 or)9–15(or 17), blades narrowly elliptic to oval-lanceolate, leaflets subtending racemes more broadly elliptic or oblanceolate, (2–)4–16(–20) mm, apex acute to obtuse, surfaces pubescent;

terminal leaflet decurrent or jointed.

odd-pinnate, petiolate to short-petiolate;

leaflets (1 or)3–21, or reduced to phyllodium, sometimes terminal leaflet decurrent and not jointed to rachis.

(4–)7–17-flowered;

axis 1–3(–4) cm in fruit.

loosely flowered, flowers often ascending then declined.

calyx 2.8–4.3 mm, tube 1.8–2.5 mm, lobes 0.9–1.9 mm;

corolla usually pink-purple, purplish, bluish, or dull purple, sometimes pallid or whitish, except maculate keel;

banner 6.9–9.6 mm;

keel 6.2–7.8 mm.

whitish, ochroleucous, lilac, or purple to pink-purple, banner recurved through 40–90°, keel apex obtuse, broadly triangular, or acute-triangular and beaklike.

tubes campanulate.

linear-oblong or -oblanceoloid, (12–)14–21 × 2.2–3.3 mm.

persistent, sessile or substipitate, declined-pendulous, spreading, or ascending, linear to linear-ellipsoid, oblanceoloid, or narrowly oblong, laterally compressed and 2-sided, unilocular.

12–18.

6–26.

basifixed or malpighian.

connate or distinct at distal nodes.