Flora of North America species comparison

decumbent or prostrate, sparsely strigulose, sometimes glabrous proximally.

prostrate to decumbent-ascending, 5–14 cm underground, strigulose.

(2–)4–10(–12) cm;

stipules (1.5–)2–8 mm, papery at proximal nodes;

leaflets (9–)13–25(or 27), blades firm, oval, obovate, elliptic-oblanceolate, or suborbiculate, (2–)3–11(–13) mm, veins not apparent, apex round, truncate, or retuse, surfaces sparsely strigose abaxially, glabrous adaxially.

1.5–4.5 cm;

stipules distinct throughout, 2–6 mm, papery at proximal nodes, herbaceous at distal nodes;

leaflets 7–15, blades oblong to narrowly elliptic, 6–23 mm, apex retuse to truncate, surfaces strigose abaxially, glabrate adaxially.

(5–)10–21-flowered;

axis 1.5–5(–7.5) cm in fruit;

bracts 0.8–1.4 mm;

bracteoles 0–2.

6–20-flowered, flowers nodding;

axis 1.5–8.5 cm in fruit;

bracts 0.6–1.2 mm;

bracteoles 1.

decumbent or prostrate, (2–)5–15 cm.

divaricate and incurved-ascending, 2–6.5 cm.

0.8–2.4 mm.

1.5–2.5 mm.

8.2–15.5 mm;

calyx 3.1–6.3 mm, strigulose, tube 2.4–4 mm, lobes subulate, 1–2 mm;

corolla pink-purple, purplish, or whitish, fading yellowish, sometimes wing tips whitish, banner veins lilac, keel tip maculate;

banner recurved through 45°;

keel 5.5–9.3 mm, apex blunt.

8–9 mm;

calyx campanulate, 3.8–5.3 mm, strigose, tube 3.3–4 mm, lobes triangular, 0.5–1.3 mm;

corolla dull pink-purple, or lilac to vivid reddish purple;

banner recurved through 90–100°;

keel 8–8.5 mm, apex sharply deltate.

usually ascending, rarely declined (humistrate), green becoming brown then blackish, incurved, narrowly lunate-ellipsoid to obliquely oblong-, ovoid-, or obovoid-ellipsoid, somewhat dorsiventrally compressed, 13–25 × 3.5–7 mm, subunilocular, thinly fleshy becoming leathery, not especially reticulate, glabrous;

gynophore 0.4–1.4 mm.

declined or pendulous, green or faintly red-dotted becoming stramineous, usually straight or incurved, rarely decurved, narrowly ellipsoid, 3-sided compressed, 13–30 × 3–4.8 mm, semibilocular, papery, strigose;

valves inflexed, septum 0.3–0.6 mm;

stipe 0–0.8 mm.

16–37.

16 or 17.