Flora of North America species comparison

erect or ascending, usually strigulose, rarely glabrous.

decumbent to ascending, diffuse, clumps often as tall as wide, strigulose-villosulous.

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.

3–8.5 cm;

stipules mostly distinct, some shortly connate-sheathing, 2–6 mm, papery at proximal nodes, subherbaceous at distal nodes;

leaflets 11–17, blades oblong to oblanceolate or obovate, 3–20 mm, apex truncate to retuse, mucronate, or acute, surfaces strigulose.

7–35-flowered, flowers ascending;

axis 3–30 cm in fruit;

bracts 1–3 mm;

bracteoles 0–2.

3–9-flowered, flowers ascending;

axis 1–4 cm in fruit;

bracts 1–3.5 mm;

bracteoles 0–2.

strict, 6–25 cm.

incurved, 1–4 cm.

0.8–3.5 mm.

0.8–3.6 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.

6.3–8.2 mm;

calyx campanulate, 4.8–6.6 mm, villous, tube 2.3–3 mm, lobes subulate, 2.2–3.5 mm;

corolla pink-purple, fading yellowish;

banner recurved through 60–90°;

keel 5.8–6.8 mm, apex bluntly or sharply triangular, often beaklike.

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, declined, green, often brightly purple- or red-mottled, straight or slightly incurved, obliquely ovoid-ellipsoid, inflated, not strongly bladdery, gently obcompressed, 13–21 × 7–11 mm, firmly papery, villosulous, hairs spreading, incurved, to 0.7 mm.

14–26.

20–28.