Flora of North America species comparison

solitary, erect, slender, usually unbranched.

short, erect or spreading, branched or unbranched.

cauline;

stipules 7–9 mm;

petiole to 1 cm;

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

cauline, crowded near base;

stipules well developed;

petiole 2–8 cm;

leaflets 7–9, blades 10–20 × 5–8 mm, adaxial surface glabrous.

4–16 cm;

flowers ± whorled or not.

elongate, dense, several–many-flowered, 2–12 cm, usually exceeding leaves;

flowers spirally arranged.

2–6 cm;

bracts deciduous, 8–10 mm.

3–5(–10 in fruit) cm;

bracts persistent, straight, 2–3 mm.

5–6 mm.

1–3 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.

7–10 mm;

calyx abaxial lobe shallowly cleft, 4–5 mm, adaxial lobe deeply cleft, 1–3 mm, less than 1/2 as long as abaxial;

corolla bright blue, banner spot yellow, keel blunt, glabrous.

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

not obviously undulate, ovoid, often secund, 0.5–1 cm, adaxial margin not constricted between seeds, thinly pilose to coarsely hirsute.

deciduous, petiolate.

persistent, disclike, sessile.

3 or 4, 4–5 mm.

2–4, ridged.