Flora of North America species comparison

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

erect, unbranched or sparsely branched distally, usually hollow.

cauline, crowded near base;

stipules well developed;

petiole 2–9 cm;

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

cauline;

stipules 4–12 mm, longer proximally becoming smaller distally;

petiole (2–)5–10(–15) cm;

leaflets 7–11, blades (15–)20–45(–50) × 4–15 mm, abaxial surface appressed to spreading hairy, strigose, adaxial surface green, glabrous.

several–many-flowered, 3–14 cm;

flowers spirally arranged.

8–20(–30) cm;

flowers spirally arranged or whorled.

1–10 cm;

bracts persistent, straight, 2–4 mm.

(2.5–)4–9 cm;

bracts tardily deciduous, 3–6 mm.

1–4 mm.

(3–)5–7(–10) 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.

(8–)12–16 mm;

calyx abaxial lobe slightly 3-dentate, 5–6 mm, adaxial lobe notched, 4–5 mm;

corolla usually blue, sometimes pink or white, banner glabrous abaxially, upper keel margins ciliate.

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

3–5 cm, villous.

persistent, disclike, sessile.

deciduous, petiolate.

2, wrinkled.

5 or 6.

= 48, 96.