Flora of North America species comparison

sprawling or climbing, slender, 2–15 dm.

sprawling or climbing, slender to robust, 2–20 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.

2–10 cm;

tendrils branched;

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

leaflets 7–14, blades ovate to linear, 5–25 × 1–11 mm, apex acute to emarginate, surfaces glabrous or puberulent.

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

2–19-flowered, 1–15 cm, or flowers 1, ± 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.

4–7 mm;

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

corolla deep blue to bluish purple or pinkish white to light lavender, banner pandurate, blade equal to or longer than claw, glabrous;

style compressed adaxially, pubescent apically.

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

stipe 1–2 mm.

yellow to brown, flat, rhombic-oblong, 16–30 × 4–6 mm, oblique-tipped, glabrous;

stipe to 1 mm.

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

hilum encircling 1/4 circumference of seed.

4–8, brownish gray, mottled dark purple, subglobose to compressed-subglobose, 2.2–2.5 mm diam.;

hilum encircling 1/4–1/3 circumference of seed.