Flora of North America species comparison

solitary, erect, slender, usually unbranched.

erect or ascending, clustered, unbranched or branched distally, stout.

cauline;

stipules 7–9 mm;

petiole to 1 cm;

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

cauline;

stipules 10–15 mm;

petiole 2–25 cm;

leaflets 8–11, blades (30–)60–120(–150) × 3–15 mm, abaxial surface silky, slightly less so abaxially.

4–16 cm;

flowers ± whorled or not.

12–40 cm, loose to dense;

flowers whorled.

2–6 cm;

bracts deciduous, 8–10 mm.

4–10 cm;

bracts early deciduous to persistent, 10–18 mm.

5–6 mm.

4–12 mm.

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.

(13–)15–18 mm;

calyx sometimes somewhat bulged and asymmetrical, abaxial lobe entire or notched, 7–8 mm, adaxial lobe shallowly notched, 6–7 mm;

corolla bright yellow, rarely pale purple, keel falcate, banner glabrous or hairy abaxially, upper keel margins densely ciliate.

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

3–4.5 cm, tomentose.

deciduous, petiolate.

deciduous, petiolate.

3 or 4, 4–5 mm.

4–7, pinkish brown to dull reddish brown, 6–7 mm.