Flora of North America species comparison

very short, densely tufted, branched.

erect, usually branched, sometimes unbranched.

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;

petiole 2–8 cm;

leaflets 5–10, blades 10–40 × 4–12 mm, adaxial surface glabrous.

flowers solitary or paired, axillary.

6–30 cm;

flowers spirally arranged or appearing ± whorled proximally.

1.5–4 mm;

bracts persistent, 1 mm.

1–6 cm;

bracts usually persistent, 4–8 mm.

1 mm.

2–4 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.

7–10 mm;

calyx 3–6 mm, lobes ± equal, abaxial lobe entire, adaxial lobe deeply cleft;

corolla banner and wings dark pink to magenta, drying blue-purple or whitish, banner spot yellowish, becoming darker magenta, lower keel margins ciliate near claw, upper margins glabrous.

0.6–1 cm, pilose.

often secund, 1–2 cm, coarsely pubescent.

persistent, disclike, sessile.

deciduous, petiolate.

1 or 2.

4–6.

= 48.