Flora of North America species comparison

sprawling or climbing, filiform, 1–5 dm.

erect, stout, 5–20 dm.

1–4 cm;

tendrils simple or branched;

stipules much smaller than leaflets, semisagittate, without nectariferous patch;

leaflets 4–12, blades oblanceolate or elliptic to linear, 6–20 × 1–5 mm, apex acute to apiculate, surfaces glabrous or sparsely villous.

1–7 cm;

tendrils absent;

stipules foliose, approaching leaflets in size, broadly semisagittate, with nectariferous patch abaxially;

leaflets 2–6, blades elliptic to ovate-lanceolate, 40–100 × 10–30 mm, apex obtuse, surfaces glabrous.

1–3-flowered, 1–3 cm, equal to or longer than subtending leaf rachis.

2–4-flowered, to 1 cm, much shorter than subtending leaf rachis.

3–6 mm;

calyx base symmetric, lobes unequal, longer than or equal to tube;

corolla light purple to pale lavender, banner stenonychioid, blade equal to claw, glabrous;

style compressed abaxially, sparsely pubescent apically.

20–30 mm;

calyx base symmetric, lobes unequal, longer than tube;

corolla white with purple mottling, banner stenonychioid, blade longer than claw, glabrous;

style compressed abaxially, pubescent apically, tufted abaxially.

yellow to light brown, oblong, 10–15 × 3–4 mm, tip rounded, stigma attached to center of curve, glabrous;

stipe to 1 mm.

dark brown to black, linear, 80–200 × 10–30 mm, oblique-tipped, sparsely pubescent;

stipe 1–2 mm.

4, greenish gray to purplish black, subglobose, 1.5–2 mm diam.;

hilum encircling 1/5–1/4 circumference of seed.

2–4, purplish, greenish, or black, sometimes spotted gray, globose and 7–9 mm diam., or strongly compressed and 12–35 mm diam.;

hilum large, terminal, blackish, encircling 1/6–1/5 circumference of seed.

= 14.

= 12, 14.