Flora of North America species comparison

very short, densely tufted, branched.

erect, branched.

cauline, densely tufted or crowded near base;

free blades of stipules reduced, 1 mm;

petiole 0.4–1.5 cm;

leaflets (3 or)5, blades 2–7 × 1–1.5 mm, adaxial surface villous.

cauline;

stipules 5–10 mm;

petiole 2–5 cm;

leaflets 7–9, blades 25–55 × 4–12 mm, adaxial surface pubescent.

flowers solitary or paired, axillary.

8–11 cm;

flowers spirally arranged to whorled.

1.5–4 mm;

bracts persistent, 1 mm.

1–8 cm;

bracts deciduous, 3.5–5 mm.

1 mm.

3–6 mm.

4–5 mm;

calyx 2.5–3 mm, abaxial lobe shallowly cleft, 2–2.5 mm, adaxial lobe 2-toothed, 0.5–1 mm;

corolla banner white, wings and keel purplish, keel glabrous.

10–12 mm;

calyx bulge or spur 0–1 mm, abaxial lobe entire or 3-toothed, 4.5–7 mm, adaxial lobe 2-toothed, 3.5–6 mm;

corolla usually purple, sometimes pink or white, banner patch usually white, banner hairy abaxially, keel glabrous.

0.6–1 cm, pilose.

2–3 cm, hairy.

persistent, disclike, sessile.

deciduous, petiolate.

1 or 2.

3 or 4, 5–6 mm.