Flora of North America species comparison

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

± prostrate or ascending, branched.

cauline;

petiole 3–15 cm;

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

basal (clustered near base);

stipules 4–5 mm;

petiole 2–4.5 cm;

leaflets 6–8, blades 10–20 × 2–4 mm, adaxial surface pubescent.

4–60 cm;

flowers in crowded to widely spaced whorls.

2–7 cm;

flowers in few whorls, widely separated.

2–30 cm;

bracts persistent, reflexed, 3.5–12 mm.

5–10 cm;

bracts usually deciduous, 4–5 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.

9–12 mm;

calyx bulge or spur 0–1 mm, abaxial lobe obscurely 3-toothed, 5–6 mm, adaxial lobe notched, 4–5 mm;

corolla ± violet, banner patch yellow, banner usually hairy abaxially, lower keel margins glabrous, adaxial margin ciliate.

1–1.8 cm, pubescent.

2–3 cm, pilose.

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

deciduous, petiolate.

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

1 or 2.