Flora of North America species comparison

very short, tufted, branched.

ascending or 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.

basal and cauline;

stipules well developed;

petiole 1.5–4.5 cm;

leaflets 5–7, blades 7–22 × 3–6 mm, adaxial surface softly villous.

dense, 3–16-flowered, 1–8 cm;

flowers spirally arranged, crowded.

well exserted, several–many-flowered, 3–7 cm;

flowers crowded, whorled proximally, becoming spirally arranged distally.

1–8(–10) cm;

bracts persistent, straight, 2–3 mm.

2–5.5 cm;

bracts persistent, 5–7 mm.

0.3–1.5 mm.

2–4 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.

8–10 mm;

calyx 5–8 mm, lobes unequal, adaxial lobe less than 1/2 as long as abaxial;

corolla blue or whitish and blue-tipped, keel glabrous.

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

not obviously undulate, 1–1.3 cm, softly villous-pilose.

persistent, disclike, sessile.

persistent or deciduous, disclike, sessile, leaving a circular scar.

1 or 2, smooth.

2.