Flora of North America species comparison

ascending or erect, branched near base or middle, or unbranched, hollow, at least near base.

erect, usually branched, sometimes unbranched.

cauline;

petiole 3–15 cm;

leaflets 5–9(–11), blades 10–50 × 2–12 mm, adaxial surface glabrous.

cauline;

petiole 3–12 cm;

leaflets 7–10, blades 20–50 × 1.5–3.5 mm, adaxial surface glabrous.

4–60 cm;

flowers in crowded to widely spaced whorls.

10–40 cm;

flowers spirally arranged, sometimes appearing ± whorled proximally.

2–30 cm;

bracts persistent, reflexed, 3.5–12 mm.

4–7 cm;

bracts deciduous, 10–15 mm, longer than buds.

0.5–5 mm.

5–9 mm.

8–18 mm;

calyx appendages usually absent, sometimes present, abaxial lobe 5–11 mm, adaxial lobe 2–6 mm;

corolla white to dark yellow, pink to dark rose, or lavender to purple, lower wing margins sometimes ciliate, upper margins usually ciliate near claw, upper keel margins usually ciliate near claw, lower margins sometimes ciliate but not as densely.

10–18 mm;

calyx 5–6.5 mm, lobes ± equal, abaxial lobe entire, adaxial lobe deeply cleft;

corolla bright blue, banner spot whitish, becoming magenta, lower keel margins ciliate near claw.

1–1.8 cm, pubescent.

3 cm, coarsely pubescent.

persistent or deciduous (leaving circular scar), disclike, sessile.

deciduous, petiolate.

2, tan to brown, usually mottled, ridged or smooth.

5–8.