Flora of North America species comparison

erect or spreading, branched or unbranched.

solitary, erect, slender, usually unbranched.

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.

cauline;

stipules 7–9 mm;

petiole to 1 cm;

leaflets 6 or 7, blades 10–40 × 4–10 mm, adaxial surface glabrous.

16–60 cm;

flowers whorled or spirally arranged.

4–16 cm;

flowers ± whorled or not.

8–20 cm;

bracts deciduous, 8–12 mm.

2–6 cm;

bracts deciduous, 8–10 mm.

2–12 mm.

5–6 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.

8–10(–12) mm;

calyx bulge or spur 0–1 mm, abaxial lobe 3-toothed, 3–5 mm, adaxial lobe 2-toothed, 3–8 mm;

corolla whitish to dull blue (at least in bud), often fading to pale yellow, banner glabrous abaxially, keel glabrous, tip sometimes exserted.

2–4.5 cm, ± densely hairy.

1.5–2.5 cm, white-hairy, dark when dry.

deciduous, petiolate.

deciduous, petiolate.

6–10, mottled dark brown, 3–4 mm.

3 or 4, 4–5 mm.