Flora of North America species comparison

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

erect, unbranched or branched.

cauline;

petiole 3–15 cm;

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

cauline;

stipules green, leaflike, lanceolate, 6–30 mm;

petiole 3–6 cm;

leaflets 6–9, blades 20–60 × 4–8 mm, adaxial surface pubescent.

4–60 cm;

flowers in crowded to widely spaced whorls.

3–20 cm;

flowers ± whorled.

2–30 cm;

bracts persistent, reflexed, 3.5–12 mm.

1–11 cm;

bracts deciduous, 4–10 mm.

0.5–5 mm.

2–7 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.

10–14 mm;

calyx bulge or spur 0–1 mm, abaxial lobe entire or 3-toothed, 5–12 mm, adaxial lobe 2-toothed, 5–10 mm;

corolla blue, banner patch white, banner glabrous abaxially, keel upcurved, usually glabrous, sparsely hairy near middle of adaxial margin.

1–1.8 cm, pubescent.

2–4 cm, silky.

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

deciduous, petiolate.

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

2–6, beige, mottled brown, 4–5 mm.