Flora of North America species comparison

short and tufted or erect, branched from base or near middle.

erect, densely tufted, unbranched distally.

cauline, often crowded near base;

stipules well developed;

petiole 1–9 cm;

leaflets 5–9, blades 10–40 × 5–10 mm, adaxial surface glabrous.

basal and cauline, persisting until after flowering;

stipules 4–8 mm;

proximal petioles 4–20 cm, distal ones 1.5–5 cm;

leaflets 6–15, blades white to greenish, (20–)25–70 × 4–10 mm, abaxial surface hairy-strigulose or sericeous, adaxial surface strigulose-silky to sparsely hairy or glabrous.

8–12-flowered, 2–11 cm, shorter than or slightly exceeding foliage;

flowers spirally arranged.

6–20 cm;

flowers whorled or spirally arranged.

0–3.5 cm;

bracts persistent, straight, 2–5 mm.

2.5–6 cm;

bracts tardily deciduous, 5–9 mm.

1–3.5 mm.

(2–)4–10 mm.

5–12 mm;

calyx abaxial lobe entire, 5–6 mm, adaxial lobe cleft, 2.5–4 mm;

corolla vivid blue, sometimes paler or white, sometimes bicolored, banner spot white or yellowish, keel glabrous.

8–12 mm;

calyx asymmetrical but not spurred, silky, abaxial lobe entire, 4–7 mm, adaxial lobe 2-fid, 3–5 mm;

corolla pale sulfur yellow, blue, or white, banner glabrous or sparsely hairy abaxially (pubescence extending above calyx as a line), upper keel margins usually ciliate most of length, sometimes glabrous.

1.5 cm, constricted between seeds, thinly pilose to coarsely hirsute.

2–3 cm, pilose to silky.

persistent, disclike, sessile.

deciduous, petiolate.

2, wrinkled or ridged.

4 or 5, pinkish brown.