Flora of North America species comparison

sprawling or climbing, filiform, 1–5 dm.

erect, sprawling, or climbing, slender to robust, 2–6 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.

2–6 cm;

tendrils simple or branched;

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

leaflets 6–16, blades oblong to lanceolate-linear, 8–20 × 1–5 mm, apex obtuse to truncate-emarginate, abaxial surface sparsely pubescent, hairs long, pustulose-based, adaxial glabrous.

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

1–3-flowered, 0 cm.

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.

18–25 mm;

calyx base symmetric, lobes unequal, abaxial lobe subequal to tube;

corolla pale to bright yellow, banner stenonychioid, blade much 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.

reddish black, elliptic, 25–35 × 7–14 mm, oblique-tipped, pilose, hairs tuberculate-based;

stipe to 3–4 mm.

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

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

3–9, blackish and ± mottled, or velvety to entirely black, compressed-globose, 3 mm diam.;

hilum whitish, linear, encircling 1/6–1/5 circumference of seed.

= 14.

= 14.