Flora of North America species comparison

erect or ascending, very short, tufted or spreading, branched.

very short, tufted, branched.

cauline, crowded near base;

stipules well developed;

petiole 2–9 cm;

leaflets 7–11, blades 10–30 × 4–10 mm, adaxial surface glabrous.

cauline, crowded near base;

stipules well developed;

petiole 1–6 cm;

leaflets (3 or)5–9, blades 8–20 × 2–9 mm, adaxial surface glabrous.

several–many-flowered, 3–14 cm;

flowers spirally arranged.

dense, 3–16-flowered, 1–8 cm;

flowers spirally arranged, crowded.

1–10 cm;

bracts persistent, straight, 2–4 mm.

1–8(–10) cm;

bracts persistent, straight, 2–3 mm.

1–4 mm.

0.3–1.5 mm.

4.5–7 mm;

calyx 3–6 mm, lobes ± equal, abaxial lobe entire, adaxial lobe cleft;

corolla dark blue-purple or whitish with blue tip, banner spot white becoming yellow, keel blunt, glabrous.

6–8 mm;

calyx abaxial lobe entire or shallowly cleft, ± 6 mm, adaxial lobe 2-toothed, 3 mm, less than 1/2 as long as abaxial;

corolla bright blue, banner spot white or yellow, keel glabrous.

undulate, 1.5–2 cm, not constricted between seeds, ciliate with long, dense hairs, sides with short, inflated hairs becoming scaly on drying.

not undulate, 1 cm, thinly pilose to coarsely hirsute.

persistent, disclike, sessile.

persistent, disclike, sessile.

2, wrinkled.

1 or 2, smooth.