Flora of North America species comparison

sprawling or climbing, slender, 2–8 dm.

sprawling, 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.

3–6 cm;

tendrils usually branched;

stipules much smaller than leaflets, semisagittate;

leaflets 12–20, blades narrowly elliptic to linear, 7–12 × 1–5 mm, apex blunt to acute and mucronulate, surfaces glabrous or puberulent.

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

2–5-flowered, 2–5 cm, somewhat shorter than subtending leaf rachis.

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.

4–5 mm;

calyx base symmetric, lobes unequal, lateral lobes equal to tube;

corolla blue, banner pandurate, blade 2 times length of claw, glabrous;

style compressed adaxially, pubescent apically.

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

stipe absent.

tawny, oblong-subrhomboidal, 12–16 × 5–7 mm, glabrous; short-stipitate.

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

hilum encircling 5/8 circumference of seed.

2, purplish black, compressed-globose, 4–5 mm diam.;

hilum encircling 1/6 circumference of seed.