Flora of North America species comparison

erect or ascending, sparsely strigulose.

prostrate, strigose-strigulose or villous to pilosulous.

(3–)4–12 cm;

stipules connate and scarious-papery at proximal nodes, distinct and herbaceous at distal nodes, 1.5–5 mm;

leaflets (17–)21–29, blades flat or loosely folded, oblong-oblanceolate or elliptic, 3–13 mm, apex obtuse to subacute, surfaces sparsely strigulose abaxially, glabrate or glabrous adaxially.

1–4(–6) cm;

stipules connate-sheathing at proximal nodes, mostly connate at distal nodes, sometimes distinct, 0.8–3(–5) mm, thinly herbaceous becoming papery;

leaflets 7–15, blades obovate-cuneate, 1.5–9 mm, apex obtuse, truncate, or emarginate, surfaces sparsely villosulous abaxially, glabrescent adaxially.

(5–)10–30-flowered;

axis (1.5–)3–19 cm in fruit;

bracts 1–2 mm;

bracteoles 2.

densely or loosely 2–13(–15)-flowered, flowers ascending then declined;

axis 0.3–1.5 cm in fruit;

bracts 1.2–2.7 mm;

bracteoles 0.

(2–)4–11 cm.

0.3–2.5 cm.

0.6–1.5 mm.

0.4–1.3 mm.

5.8–8 mm;

calyx marcescent, 3.4–4.3 mm, strigulose, hairs black and/or white, tube 2.1–2.7 mm, lobes subulate, 1–2 mm;

corolla whitish or, sometimes, greenish ochroleucous, immaculate;

banner abruptly incurved through 90°;

keel 4.2–5.6 mm.

4.4–10(–12) mm;

calyx obconic-campanulate, (2.2–)2.6–4.7(–5) mm, sparsely villosulous, tube 1.1–2 mm, lobes subulate, 1–2.7 mm;

corolla whitish and banner veins faintly lilac, or rose-purple with pale basal eye;

banner recurved through 60–100°;

keel 3.5–3.7 mm, apex broadly deltate.

stramineous, straight or slightly incurved or decurved, linear-oblong or linear-oblanceolate, 3-sided compressed, 15–30 × (2.5–)3–4 mm, bilocular, papery, glabrous;

valves inflexed as complete septum 1.4–1.9 mm wide;

stipe 1.5–2.5 mm.

spreading, yellowish, straight, ovoid-lenticular, obscurely 3-sided, 3.3–4.5 × 1.5–4.2 mm, unilocular, thinly papery, minutely strigulose to silky-villous.

12–16.

2 or 3(or 4).