Flora of North America species comparison

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

decumbent to erect, few to several-tufted, unbranched or branched.

cauline;

petiole 3–15 cm;

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

mostly basal with 3 or 4 cauline;

stipules not leaflike, green to silvery, 8–12 mm;

basal petioles 4–7 cm, proximal cauline petioles 3.5–15 cm, distal ones 2–3.5 cm;

leaflets 5–9, blades 15–70 × 3–8 mm, surfaces densely pubescent, adaxially less pubescent and greener.

4–60 cm;

flowers in crowded to widely spaced whorls.

3–10(–12) cm;

flowers in 3–6 whorls.

2–30 cm;

bracts persistent, reflexed, 3.5–12 mm.

2.5–7(–13) cm;

bracts subpersistent, 4–10 mm.

0.5–5 mm.

2–5(–7) 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.

10–13 mm;

calyx slightly gibbous adaxially near base, bulge or spur 0–1 mm, abaxial lobe 3-lobed, 5–7 mm, adaxial lobe 2-lobed, 4–6 mm;

corolla blue to purple, banner spot light yellow, banner with inconspicuous hairs abaxially, adaxial keel glabrous or with a few cilia along adaxial edges towards tip, keel upcurved.

1–1.8 cm, pubescent.

1.5–3 cm, silky-pilose.

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

deciduous, petiolate.

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

4–6.