Flora of North America species comparison

erect or ascending, sparsely strigulose.

few or single, prostrate, 2–10 cm underground, densely strigulose.

(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.

1–3(–4.5) cm;

stipules connate at proximal nodes, distinct at distal nodes, 1–2.5 mm, scarious at proximal nodes, herbaceous at distal nodes;

leaflets 9–13, blades obovate, cuneate-obovate, or oblanceolate, 3–9(–14) mm, apex obtuse or retuse to obcordate, surfaces ashy-strigose.

(5–)10–30-flowered;

axis (1.5–)3–19 cm in fruit;

bracts 1–2 mm;

bracteoles 2.

(4–)6–10(–13)-flowered, flowers spreading;

axis 0.5–1.5(–2) cm in fruit;

bracts 0.6–1.5 mm;

bracteoles 0.

(2–)4–11 cm.

spreading or incurved, (0.3–)0.5–2.2 cm.

0.6–1.5 mm.

1–2 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.

6.4–8.3 mm;

calyx (2.8–)4.1–5 mm, strigulose, tube 1.9–2.7 mm, lobes subulate, (0.9–)1.5–2.3 mm;

corolla dull stramineous, banner veins lilac, keel tip maculate;

keel 8.8–8.3 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.

spreading or ascending (humistrate), green or purplish becoming stramineous, straight, ovoid or ellipsoid, bladdery-inflated, somewhat dorsiventrally compressed, 20–35 × 12–26 mm, bilocular, thin becoming papery, sparsely strigulose.

12–16.

25–32.