Flora of North America species comparison

and herbage densely to sparsely strigulose, villosulous, or villous, hairs basifixed.

several to many.

(0.2–)0.4–1.5(–2) cm;

stipules 2–7 mm;

leaflets (3 or)5–9, blades 1–9 mm, surfaces pubescent or adaxially glabrous or medially glabrescent.

odd-pinnate, sessile or subsessile to petiolate;

leaflets (3–)5–21, jointed or decurrent.

sometimes paired, loosely or remotely flowered, flowers ascending, spreading, or declined.

0–1.5(–3) cm.

(3.9–)4.5–8(–9.2) mm;

calyx (2–)2.4–5.7(–7) mm, tube 1.2–2.6(–2.8) mm, lobes subulate to setaceous, (0.5–)1.9–2.6(–4.2) mm;

corolla usually purple or purplish, sometimes white and keel tip pink or purplish.

pink-purple, whitish, or ochroleucous, banner recurved through 40–90°, keel apex obtuse.

tubes usually campanulate, sometimes turbinate-campanulate.

ellipsoid or oblong-ellipsoid, (3–)4–8(–9) × (0.6–)2–2.5 mm.

eventually deciduous or persistent, sessile or stipitate, deflexed, declined, or pendulous, linear, oblong, ellipsoid, lenticular, or ovoid- or obovoid-subglobose, compressed laterally or bladdery-inflated, unilocular.

(3–)5–8.

2–9(–11).

usually basifixed, rarely malpighian (in some varieties of A. kentrophyta).

connate or distinct at distal nodes.

= 24.