Flora of North America species comparison

usually several to many, rarely single or few clustered (A. ceramicus).

2–12 cm; usually 1–6 pairs of lateral leaflets proximally or throughout, distalmost often reduced to naked rachis.

odd-pinnate, subsessile to short-petiolate or petiolate;

leaflets (0 or 1–)5–23, distally reduced to phyllodia;

terminal leaflet often decurrent.

6–15(–25)-flowered;

axis (1–)1.5–8(–15) cm in fruit.

loosely flowered, flowers ascending, spreading, or declined, eventually all declined.

6.3–8.3(–9.5) mm;

calyx 3.1–4.2 mm, tube 2.1–2.6(–3.3) mm, lobes 1–1.8 mm.

white, pinkish white to pinkish red, yellowish, ochroleucous, or purplish, banner recurved through 35–90°, keel apex triangular or deltate, obtuse, or subacute, sometimes beaklike.

tubes subcylindric or campanulate.

(10–)15–30 × 5–15(–22) mm;

stipe (1–)1.5–3.3 mm.

eventually deciduous, usually stipitate, rarely sessile (A. ceramicus), pendulous, narrowly oblong and strongly compressed, or bladdery-inflated and obovoid-ellipsoid, unilocular.

12–16(–26).

10–30(–37).

usually basifixed, sometimes malpighian (A. ceramicus).

connate or distinct at distal nodes.

= 22.