Flora of North America species comparison

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

ascending or erect, clustered, branched, short-silky.

cauline;

petiole 3–15 cm;

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

cauline;

stipules not leaflike, green to silvery, 5–17 mm;

petiole 2–5 cm;

leaflets 6–8, blades 20–80 × 2–7 mm, widest below middle, adaxial surface pubescent, hairs densely silver-silky to woolly.

4–60 cm;

flowers in crowded to widely spaced whorls.

5–40 cm;

flowers ± whorled.

2–30 cm;

bracts persistent, reflexed, 3.5–12 mm.

2–8 cm;

bracts deciduous, 6–11 mm.

0.5–5 mm.

2–4 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, 6–8 mm, adaxial lobe notched, 5–7 mm;

corolla lavender to blue, banner patch pale yellowish, banner usually glabrous abaxially, keel upcurved, glabrous, banner ovate, wings wide, covering keel tip.

1–1.8 cm, pubescent.

2–3 cm, pubescent.

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

deciduous, petiolate.

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

4–6, mottled olive brown, 5–6 mm.