Flora of North America species comparison

ascending, erect, decumbent, or prostrate, sometimes diffuse, 2–6 cm underground, strigulose.

ascending-erect, strigulose.

(1–)1.5–10(–11) cm;

stipules connate-sheathing and papery at proximal nodes, connate or distinct and subherbaceous at distal nodes, 1–5 mm;

leaflets (5–)9–21, blades oblong-oblanceolate, elliptic, narrowly obovate, or linear-elliptic, 2–21 mm, apex obtuse to acute, surfaces usually strigulose, sometimes glabrescent or glabrous adaxially.

mostly clustered at stem base, 2.5–10 cm;

stipules mostly all connate, 2–4.5 mm, submembranous;

leaflets (9 or)11–15(–19), blades narrowly oblong-elliptic, linear-oblong, or oblong-obovate, (1–)2–8 mm, apex obtuse to subacute, surfaces strigulose abaxially, glabrous adaxially;

terminal leaflet jointed to rachis.

(3 or)4–16-flowered;

axis 0.5–7 cm in fruit;

bracts 1–3 mm;

bracteoles 0.

2–8-flowered, flowers horizontal or nodding;

axis (0.5–)1–8(–11) cm in fruit;

bracts 1–1.5(–2) mm;

bracteoles 0.

incurved-ascending or erect, 1–9.5(–12) cm.

incurved-ascending, 3–12(–15) cm.

0.5–2.5 mm.

1–4 mm.

(8.3–)9–17.2 mm;

calyx campanulate, 4.5–9.3 mm, strigulose, hairs white, sometimes also black, tube 3.5–5.9 mm, lobes triangular, 0.5–3.6 mm;

corolla ochroleucous, pinkish white, lilac, or pink-purple, wing tips often paler than banner;

banner recurved through 50–80°;

keel 7.3–13.8, apex narrowly triangular, acute or subacute, often slightly beaked.

9.5–13.2 mm;

calyx 5–8.9 mm, strigulose, tube 3.6–6 mm, lobes subulate, 1.4–2.9 mm;

corolla whitish or tinged with lavender, keel tip maculate;

keel 7.3–10.2 mm.

green, usually red- or purple-mottled, becoming stramineous, balloon-shaped, bladdery-inflated, 15–60(–75) × (8–)10–25(–35) mm, apex broad, round, beak obsolete, papery-membranous, translucent, glabrous or strigulose;

stipe 2–9 mm.

pendulous, often humistrate, brightly red-mottled, decurved, obliquely oblong-ellipsoid, inversely boat-shaped, ± 3-sided compressed, ventral suture convex in profile or at least beak declined from body, 13–22 × 4–6.5 mm, partly bilocular, fleshy becoming leathery, strigulose;

septum incomplete, to 0.7 mm wide;

stipe 1.5–3.5 mm.

(13–)15–30(–37).

(14–)17–29.