Flora of North America species comparison

sprawling or climbing, filiform, 1–5 dm.

sprawling, 2–6 dm.

1–4 cm;

tendrils simple or branched;

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

leaflets 4–12, blades oblanceolate or elliptic to linear, 6–20 × 1–5 mm, apex acute to apiculate, surfaces glabrous or sparsely villous.

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.

1–3-flowered, 1–3 cm, equal to or longer than subtending leaf rachis.

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

3–6 mm;

calyx base symmetric, lobes unequal, longer than or equal to tube;

corolla light purple to pale lavender, banner stenonychioid, blade equal to claw, glabrous;

style compressed abaxially, sparsely 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.

yellow to light brown, oblong, 10–15 × 3–4 mm, tip rounded, stigma attached to center of curve, glabrous;

stipe to 1 mm.

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

4, greenish gray to purplish black, subglobose, 1.5–2 mm diam.;

hilum encircling 1/5–1/4 circumference of seed.

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

hilum encircling 1/6 circumference of seed.

= 14.