Flora of North America species comparison

very short, tufted, branched.

erect, branched or unbranched.

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.

cauline;

petiole 4–9 cm;

leaflets usually 9, blades 10–40 × 4–9 mm, adaxial surface villous to pilose.

dense, 3–16-flowered, 1–8 cm;

flowers spirally arranged, crowded.

10–40 cm;

flowers whorled.

1–8(–10) cm;

bracts persistent, straight, 2–3 mm.

5–12 cm;

bracts usually deciduous, 8–9 mm.

0.3–1.5 mm.

6–8 mm.

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.

11–17 mm;

calyx 4–7 mm, lobes ± equal, abaxial lobe entire, adaxial lobe cleft;

corolla usually blue, rarely white, banner spot white, upper keel margins ciliate near apex, banner as wide as or wider than long.

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

3–5 × 0.8–1 cm, densely pubescent.

persistent, disclike, sessile.

deciduous, petiolate.

1 or 2, smooth.

5–10.