Flora of North America species comparison

erect or ascending, usually strigulose, rarely glabrous.

prostrate to ascending or erect, 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.

distal leaves often unifoliolate, leaflets and rachis often expanded into flat, grasslike blade, 1.5–7 cm;

stipules connate-sheathing and papery-scarious at proximal nodes, distinct or basally connate and herbaceous at distal nodes, 1–3 mm;

petiole flattened or short and continuous with rachis;

leaflets 1–7, blades narrowly elliptic, linear, oblanceolate, or lanceolate, 4–47(–67) × 1–5 mm, apex acute or acuminate, surfaces usually strigose, sometimes glabrous adaxially;

terminal leaflet longer, sometimes decurrent distally, not jointed to rachis.

7–35-flowered, flowers ascending;

axis 3–30 cm in fruit;

bracts 1–3 mm;

bracteoles 0–2.

(1 or)2–8-flowered, flowers ascending;

axis 0.5–3 cm in fruit;

bracts 0.7–2.5 mm;

bracteoles 0.

strict, 6–25 cm.

incurved-ascending, 2–15 cm.

0.8–3.5 mm.

1.8–4 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.

8–13.5 mm;

calyx (3.5–)4.4–6.7 mm, strigose, tube 3.2–4.7 mm, lobes broadly subulate, 1–2 mm;

corolla greenish white, often tinged with purple;

banner recurved through 50–80°;

keel 7.8–11 mm, apex broadly triangular.

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.

ascending to declined, stramineous, straight or slightly decurved, narrowly oblong, strongly laterally compressed, bicarinate, 10–17 × 2.7–4 mm, papery, strigose;

stipe 0.5–1.3 mm.

14–26.

10–16.