Flora of North America species comparison

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

erect, clustered, branched or unbranched, long-villous.

cauline;

petiole 3–15 cm;

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

basal and cauline;

stipules 5–11 mm;

petiole 2–3 cm;

leaflets 6–9, blades 25–75 × 4–6 mm, adaxial surface villous, hairs silvery.

4–60 cm;

flowers in crowded to widely spaced whorls.

7–21 cm;

flowers ± whorled.

2–30 cm;

bracts persistent, reflexed, 3.5–12 mm.

2–5.5 cm;

bracts deciduous or persistent, 4–9 mm.

0.5–5 mm.

2–3.5 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 3-toothed, 5.5–8 mm, adaxial lobe, 2-toothed, 5–7 mm;

corolla cream to pale yellow, banner usually hairy abaxially, keel glabrous.

1–1.8 cm, pubescent.

2–3 cm, silky.

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

deciduous, petiolate.

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

2 or 3, white, mottled black, 4–5 mm.