Flora of North America species comparison

erect or ascending, usually strigulose, rarely glabrous.

erect or ascending, loosely strigulose to 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.

3–10(–13) cm;

stipules (1–)2–7 mm, papery at proximal nodes, herbaceous at distal nodes;

leaflet blades narrowly oblong-oblanceolate to linear-oblong, 5–18(–25) mm, apex retuse, surfaces strigulose to villosulous.

7–35-flowered, flowers ascending;

axis 3–30 cm in fruit;

bracts 1–3 mm;

bracteoles 0–2.

12–35(–40)-flowered;

axis 2.5–10 cm in fruit;

bracts 1.5–6 mm;

bracteoles 0.

strict, 6–25 cm.

erect, (5–)7–15 cm.

0.8–3.5 mm.

0.8–2 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.

15–18.6 mm;

calyx gibbous-convex behind pedicel, 8–10.5 mm, villosulous or villous-tomentulose, tube 7.5–9 mm, lobes triangular, 1–2.1 mm;

corolla keel 11.5–14.3 mm.

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.

green becoming stramineous, 12–15 × (3–)3.4–4(–5.4) mm, stiffly leathery, glabrous or sparsely pilosulous;

stipe 6–10 mm, pilosulous.

14–26.