Flora of North America species comparison

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

ascending or erect, branched or unbranched.

cauline;

petiole 3–15 cm;

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

cauline;

petiole 2–7 cm;

leaflets 6–9, blades 15–35 × 3–10 mm, adaxial surface densely pubescent to tomentose.

4–60 cm;

flowers in crowded to widely spaced whorls.

5–25 cm;

flowers spirally arranged, sometimes appearing whorled proximally.

2–30 cm;

bracts persistent, reflexed, 3.5–12 mm.

1–9 cm;

bracts deciduous, 2.5–5 mm.

0.5–5 mm.

2.5–5 mm, becoming recurved.

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.

8.5–12 mm;

calyx 3–5 mm, lobes ± equal, cleft;

corolla golden yellow or white, lower keel margins short-ciliate near claw.

1–1.8 cm, pubescent.

1–2 cm, glabrous or glabrate.

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

deciduous, petiolate.

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

3–8, resembling bits of granite.