Flora of North America species comparison

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

short, erect or spreading, branched or unbranched.

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 2–8 cm;

leaflets 7–9, blades 10–20 × 5–8 mm, adaxial surface glabrous.

several–many-flowered, 3–14 cm;

flowers spirally arranged.

elongate, dense, several–many-flowered, 2–12 cm, usually exceeding leaves;

flowers spirally arranged.

1–10 cm;

bracts persistent, straight, 2–4 mm.

3–5(–10 in fruit) cm;

bracts persistent, straight, 2–3 mm.

1–4 mm.

1–3 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.

7–10 mm;

calyx abaxial lobe shallowly cleft, 4–5 mm, adaxial lobe deeply cleft, 1–3 mm, less than 1/2 as long as abaxial;

corolla bright blue, banner spot yellow, keel blunt, 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 obviously undulate, ovoid, often secund, 0.5–1 cm, adaxial margin not constricted between seeds, thinly pilose to coarsely hirsute.

persistent, disclike, sessile.

persistent, disclike, sessile.

2, wrinkled.

2–4, ridged.