Flora of North America species comparison

sprawling or climbing, slender, 2–15 dm.

sprawling or climbing, slender, 5–15 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.

4–8 cm;

tendrils simple;

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

leaflets (2 or)4(or 6), blades narrowly oblong to linear, 30–50 × 3–6 mm, apex obtuse, surfaces glabrous.

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

5–10-flowered, 3–15 cm, longer 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.

8–12 mm;

calyx base symmetric, lobes equal, shorter than or equal to tube;

corolla blue or lavender and white, 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.

brown, oblong, 40–45 × 7–8 mm, oblique-tipped, glabrous;

stipe 1–2 mm.

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

hilum encircling 1/4 circumference of seed.

8–12, purplish black, compressed-globose, 3–3.5 mm diam.;

hilum encircling 2/3 circumference of seed.