Flora of North America species comparison

erect or ascending, sparsely strigulose.

decumbent to ascending, densely pilose to pilose-hirsute.

(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.

(6–)8–15 cm;

stipules often connate-sheathing at proximal nodes, connate or distinct at distal nodes, 5–20 mm, submembranous becoming papery-scarious;

leaflet blades oblong-elliptic or obovate-obcordate, (4–)6–23 mm, apex obtuse, emarginate, or apiculate-acute, surfaces sparsely pilose or pilose-hirsute abaxially, glabrous adaxially.

(5–)10–30-flowered;

axis (1.5–)3–19 cm in fruit;

bracts 1–2 mm;

bracteoles 2.

9–20-flowered;

axis 2–5(–6) cm in fruit;

bracts 5–12 mm;

bracteoles 0.

(2–)4–11 cm.

incurved-ascending, 5–10(–14) cm.

0.6–1.5 mm.

1.5–3.5 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.

14–19 mm;

calyx 8.3–15.1 mm, sparsely white-hirsute, tube gibbous-saccate behind pedicel, 5.9–11.4 mm, lobes lanceolate-subulate, 2.4–4 mm;

corolla whitish or pale cream, drying yellow, immaculate;

keel 11–13.6 mm.

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.

green or pink-tinged becoming stramineous, 25–40 × 7–13 mm, fleshy becoming spongy, walls 2.5–3 mm thick, translucent, alveolate-rugulose, sparsely hirsute;

gynophore stout, (1–)1.3–2 mm, glabrous.

12–16.