Flora of North America species comparison

erect or spreading, branched or unbranched.

erect, densely tufted, unbranched distally.

cauline, basal when present withered by anthesis;

stipules 5–10 mm;

petiole 4–20 cm;

leaflets 5–11, blades 40–100 × 6–24 mm, abaxial surface ± hairy, adaxial surface glabrous or hairy.

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.

16–60 cm;

flowers whorled or spirally arranged.

6–20 cm;

flowers whorled or spirally arranged.

8–20 cm;

bracts deciduous, 8–12 mm.

2.5–6 cm;

bracts tardily deciduous, 5–9 mm.

2–12 mm.

(2–)4–10 mm.

8–18 mm;

calyx abaxial lobe entire or notched, 4–8 mm, adaxial lobe entire or 2-toothed, 5–10 mm;

corolla blue or purple to white, banner patch usually white to yellowish turning purple, banner glabrous abaxially, lower keel margins usually ciliate, adaxial margin ciliate from claw to middle.

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.

2–4.5 cm, ± densely hairy.

2–3 cm, pilose to silky.

deciduous, petiolate.

deciduous, petiolate.

6–10, mottled dark brown, 3–4 mm.

4 or 5, pinkish brown.