Flora of North America species comparison

very short, densely tufted, branched.

very short, tufted, 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, crowded near base;

stipules well developed;

petiole 1–6 cm;

leaflets (3 or)5–9, blades 8–20 × 2–9 mm, adaxial surface glabrous.

flowers solitary or paired, axillary.

dense, 3–16-flowered, 1–8 cm;

flowers spirally arranged, crowded.

1.5–4 mm;

bracts persistent, 1 mm.

1–8(–10) cm;

bracts persistent, straight, 2–3 mm.

1 mm.

0.3–1.5 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.

6–8 mm;

calyx abaxial lobe entire or shallowly cleft, ± 6 mm, adaxial lobe 2-toothed, 3 mm, less than 1/2 as long as abaxial;

corolla bright blue, banner spot white or yellow, keel glabrous.

0.6–1 cm, pilose.

not undulate, 1 cm, thinly pilose to coarsely hirsute.

persistent, disclike, sessile.

persistent, disclike, sessile.

1 or 2.

1 or 2, smooth.