Flora of North America species comparison

very short, tufted, branched.

erect or ascending, clustered, unbranched or branched.

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.

cauline;

stipules not leaflike, green to silvery, 4–10 mm;

petiole 2–8 cm;

leaflets 5–9, blades 30–60 × 3–10 mm, adaxial surface pubescent or glabrous.

dense, 3–16-flowered, 1–8 cm;

flowers spirally arranged, crowded.

6–28 cm;

flowers whorled or not.

1–8(–10) cm;

bracts persistent, straight, 2–3 mm.

2–6 cm;

bracts tardily deciduous, 2–7 mm.

0.3–1.5 mm.

3–6 mm.

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.

12–15 mm;

calyx bulge or spur 0–1 mm, abaxial lobe 2 or 3-toothed, 6–7 mm, adaxial lobe 2-toothed, 4–6 mm;

corolla bright yellow to orange-yellow, banner usually glabrous abaxially, sparsely hairy on ridge, keel upcurved, glabrous.

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

2–3.5 cm, hairy.

persistent, disclike, sessile.

deciduous, petiolate.

1 or 2, smooth.

3–5, mottled tan, 6–8 mm.