Flora of North America species comparison

erect or ascending, usually strigulose, rarely glabrous.

ascending to erect or spreading-decumbent, diffuse, radiating, strigulose.

distally unifoliolate or reduced to phyllodia, 2–10 cm;

stipules connate-sheathing and papery-scarious at proximal nodes, distinct and herbaceous at distal nodes, 1.5–6.5 mm;

leaflets (0 or 1–)3–13, blades linear-filiform to oblong, 3–30 mm, margins involute, apex obtuse to acute, surfaces strigose abaxially, strigose or glabrous adaxially;

terminal leaflet of compound leaves sometimes decurrent distally, not jointed to rachis.

2–9 cm;

stipules distinct, 1–4.5 mm, papery at proximal nodes, herbaceous at distal nodes;

leaflets 5–15, blades oblong to ovate, obovate, or elliptic, 2–14 mm, apex obtuse to retuse, mucronate, or acute, surfaces villosulous.

7–35-flowered, flowers ascending;

axis 3–30 cm in fruit;

bracts 1–3 mm;

bracteoles 0–2.

3–12-flowered, flowers spreading;

axis 0.4–3.5 cm in fruit;

bracts 1–3 mm;

bracteoles 0.

strict, 6–25 cm.

incurved, 1–4 cm.

0.8–3.5 mm.

0.5–2 mm.

(13–)14–20 mm;

calyx 4.6–8 mm, strigose, tube 4.1–6.4 × (2.6–)3–3.9 mm, lobes subulate, 0.5–2 mm;

corolla pink-purple and wing tips white, or greenish yellow or whitish;

keel (9.5–)10.5–13.5 mm.

8.8–12.2 mm;

calyx campanulate, 4.8–6.3 mm, villosulous, tube 2.8–4.2 mm, lobes subulate, 1.8–2.8 mm;

corolla pink-purple or ochroleucous;

banner incurved through 90–110°;

keel 7.3–8.7 mm, apex bluntly triangular or deltate.

erect, green sometimes purple-mottled becoming stramineous, straight or slightly incurved, oblong, slightly compressed laterally, bicarinate, 13–25 × 3.7–9 mm, stiffly leathery to somewhat woody, glabrous or strigose;

sessile.

deciduous from receptacle, spreading-declined, green or reddish becoming stramineous, incurved through 0.25–0.5 spiral, obliquely lanceoloid-ellipsoid, inflated, 12–20 × 4–8(–9) mm, thin becoming papery, shaggy-pilose, hairs lustrous, 1–2 mm.

14–26.

9–18.