Flora of North America species comparison

many, decumbent, glabrous or sparsely strigose.

erect or ascending, 2.5–10 cm underground, strigose.

3–7 cm;

stipules 2.5–5 mm, membranous or membranous-margined;

leaflets 13–25(–29), blades oblanceolate or obovate-cuneate, 6–16 mm, apex retuse or apiculate, surfaces glabrous (except midrib sparsely strigose) abaxially, glabrous adaxially.

some or most reduced to phyllodia and continuous with rachis, 1.5–10.5 cm;

stipules distinct throughout, 2–7 mm, papery at proximal nodes, herbaceous at distal nodes;

leaflets 0(or 3–7), blades linear to oblong, 2–14 mm, apex acute to obtuse, surfaces strigose;

terminal leaflet decurrent distally, not jointed to rachis.

5–7-flowered, flowers ascending;

axis 1.5–2 cm in fruit;

bracts 2–4 mm;

bracteoles 2.

6–25-flowered, flowers ascending;

axis 3–19(–26) cm in fruit;

bracts 1–1.5 mm;

bracteoles 0–2.

reclined in fruit, 2–6 cm.

4–23 cm.

1.5–5 mm.

1–3 mm.

16–23 mm;

calyx short-cylindric, 9.5–11 mm, strigulose, tube 5.5–6.5 mm, lobes linear-subulate, 3.5–4.5 mm;

corolla whitish;

keel 12–13 mm.

8.8–11.5 mm;

calyx campanulate, 3.5–5.2 mm, black-strigose, tube 2.8–4.2 × 2.2–2.6 mm, lobes triangular, 0.5–1.2 mm;

corolla pink-purple or tinged purplish or pinkish;

banner recurved through 45°;

keel 7.7–8.4 mm, apex obtuse to subacute, not beaklike.

ascending (humistrate), stramineous, slightly incurved, obliquely oblong-ovoid, obcompressed, 20–40 × (9–)11–19 mm, bilocular, fleshy becoming woody, glabrous;

septum 3–4 mm wide;

stipe 5–20 mm.

deflexed, brown or stramineous, slightly curved or straight, lanceoloid-oblong to oblong or lanceoloid-ellipsoid, laterally compressed, 20–35 × 5–9 mm, papery, glabrous or strigose;

sessile or subsessile.

26–28.

8–14.