Flora of North America species comparison

erect or ascending, 2–10 cm underground, strigulose.

erect or ascending, strigulose, canescent, cinereous, or greenish cinereous.

4–10(–11) cm;

stipules distinct throughout, 2–7 mm, papery at proximal nodes, herbaceous at distal nodes;

leaflets (7–)11–21, blades linear or linear-oblong to -elliptic, 6–20 × mm, apex obtuse to retuse, surfaces strigulose.

dimorphic, some unifoliolate distally and reduced to phyllodia, continuous with rachis, 2–10 cm;

stipules distinct throughout, 1–7 mm, papery at proximal nodes, herbaceous at distal nodes;

leaflets (1 or)3–19, blades linear, oblong, cuneate-oblong, or ovate, (3–)4–20 mm, apex acute, obtuse, truncate or retuse, surfaces strigose;

terminal leaflet decurrent distally, not jointed to rachis.

(7–)10–28-flowered, flowers declined and secund;

axis (2.5–)4.5–20 cm in fruit;

bracts 1.5–3 mm;

bracteoles 0–2.

(2–)5–30-flowered, flowers spreading-declined;

axis 3–20 cm in fruit;

bracts 0.5–3.2 mm;

bracteoles 0.

erect, 9–21 cm.

erect or incurved-ascending, (4–)6.5–30 cm.

1–2.5 mm.

0.8–2.5 mm.

14.5–18 mm;

calyx cylindric, 6–7.5 mm, strigose, tube (5–)5.5–6 mm, lobes triangular-subulate, 1–1.7 mm;

corolla ochroleucous, concolorous;

banner recurved through 45°;

keel 9.5–11.5 mm, apex bluntly or sharply deltate.

12–19 mm;

calyx purplish, cylindric, 4.5–8 mm, strigose, tube 4–6.7 mm, lobes broadly subulate, 0.6–2.3 mm;

corolla pink-purple;

banner recurved through 35–50°;

keel 9–13 mm, apex bluntly or sharply deltate.

pendulous, stramineous, straight or evenly to hamately curved, linear-oblanceoloid, 3-sided, abaxially compressed, (25–)30–40 × 3.5–5 mm, stiffly papery, strigulose;

stipe 5–10(–12) mm.

pendulous, green or reddish becoming stramineous, straight or gently decurved, oblong to oblanceoloid, strongly compressed, flattened laterally, 19–35 × (3–)3.5–6 mm, stiffly papery, glabrous;

stipe 4–11 mm.

18–20.

14–20.