Flora of North America species comparison

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

decumbent to ascending, villosulous.

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.

2–7 cm;

stipules 2–4.5 mm, papery at proximal nodes, herbaceous at distal nodes;

leaflets (9 or)11–17(or 19), blades obovate-cuneate or oblong-oblanceolate, (4–)6–16 mm, apex truncate-retuse to obtuse, surfaces villosulous.

6–25-flowered, flowers ascending;

axis 3–19(–26) cm in fruit;

bracts 1–1.5 mm;

bracteoles 0–2.

8–16-flowered;

axis 1.5–4.5 cm in fruit;

bracts 2–3 mm;

bracteoles usually 2.

4–23 cm.

erect or incurved-ascending, 4.5–12 cm.

1–3 mm.

1.5–3.5 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.

16.6–20 mm;

calyx 9–11.5 mm, densely villosulous, tube 6.9–8.5 mm, not swollen or gibbous proximally, marcescent, lobes triangular, 1.4–3 mm;

corolla whitish, keel tip faintly maculate;

keel 12–13.4 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.

spreading or pendulous, stramineous, lunate- or hamate-incurved, laterally falcately oblong, laterally compressed, 18–30 × (4–)5–7 mm, fleshy becoming leathery, densely villosulous;

stipe 5–8 mm.

8–14.

24–30.

= 22.