Flora of North America species comparison

sprawling or climbing, slender, 2–8 dm.

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

2–6 cm;

tendrils simple or branched (absent on proximal leaves);

stipules foliose, semisagittate, without nectariferous patch;

leaflets 2 or 4 proximally, 4–8 distally, blades ovate proximally, linear distally, 5–30 × 1–5 mm, apex obtuse to acute, surfaces glabrous.

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- or 2-flowered, 1–5 cm, ± shorter than subtending leaf rachis.

1–3-flowered, 0 cm.

5–8 mm;

calyx base symmetric, lobes unequal, shorter than tube;

corolla pale blue to lavender, banner pandurate, blade equal to claw, glabrous;

style compressed adaxially, 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.

reddish brown, narrowly oblong-falcate, 15–30 × 4–5 mm, apiculate, glabrous;

stipe absent.

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

stipe to 3–4 mm.

6–8, blackish purple, subglobose, 2 mm diam.;

hilum encircling 5/8 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.