Flora of North America species comparison

sprawling or climbing, slender, 2–15 dm.

sprawling or climbing, slender, 2–8 dm.

4–11 cm;

tendrils branched;

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

leaflets 10–16, blades elliptic-oblong to linear, 7–30 × 1–11 mm, apex obtuse, abaxial surface glabrous, adaxial often sparsely long-pubescent.

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.

8–25-flowered, 2–15 cm, shorter to longer than subtending leaf rachis.

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

4–7 mm;

calyx base symmetric, lobes equal, usually shorter than tube;

corolla cream-white with purple-tipped keel, banner pandurate, blade equal to claw, glabrous;

style compressed adaxially, pubescent evenly for some length along style.

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.

reddish brown, oblong, 20–35 × 5–8 mm, acute-tipped, glabrous;

stipe 1–2 mm.

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

stipe absent.

5–9, purplish black, compressed-subglobose, 2–3 mm diam.;

hilum encircling 1/4 circumference of seed.

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

hilum encircling 5/8 circumference of seed.