Flora of North America species comparison

erect or ascending, usually strigulose, rarely glabrous.

erect to ascending, silky-pilose.

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.

1.5–5.5(–7.5) cm;

stipules 3–6 mm, herbaceous becoming papery;

leaflet blades usually broadly to narrowly elliptic or oblanceolate, rarely obovate, 4–17(–20) mm, apex acute to obtuse, surfaces pilose.

7–35-flowered, flowers ascending;

axis 3–30 cm in fruit;

bracts 1–3 mm;

bracteoles 0–2.

3–7-flowered;

axis to 0.4 cm in fruit;

bracts 1.5–5.5 mm;

bracteoles 0.

strict, 6–25 cm.

erect and ascending, 0.7–7 cm.

0.8–3.5 mm.

0.6–1 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.

5.2–6.2 mm;

calyx 5.2–6.2 mm, pilose, tube 2–2.6 mm, lobes linear-lanceolate, 3.2–3.8 mm;

corolla keel 4.7–5.5 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.

brown or blackish, 7–13 × 2.5–3.5 mm, scarcely fleshy becoming stiffly papery, pilose-hirsute.

14–26.

= 22.