Flora of North America species comparison

very short, tufted, branched.

decumbent or erect, branched just above ground, hairs less than 1 mm, not sharp or stiff.

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, clustered at base;

stipules 7–12 mm;

petiole 5–12 cm;

leaflets 5–9, blades 15–40 × 5–12 mm, adaxial surface densely tomentose to woolly, hairs ± spreading.

dense, 3–16-flowered, 1–8 cm;

flowers spirally arranged, crowded.

10–40 cm;

flowers ± whorled or not.

1–8(–10) cm;

bracts persistent, straight, 2–3 mm.

stout, 6–10 cm;

bracts deciduous, 7–8 mm.

0.3–1.5 mm.

2–5 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.

10–15 mm;

calyx bulge or spur 0–1 mm, abaxial lobe 3-toothed, 6–8 mm, adaxial lobe deeply notched, 6–7 mm;

corolla bluish to purple, banner patch yellow turning purple to white, banner well reflexed-recurved at or proximal to midpoint, this 3.5–6 mm proximal to apex, banner glabrous or ± hairy abaxially, lower keel margins glabrous, adaxial margin ciliate middle to tip.

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

2–3 cm, hairy.

persistent, disclike, sessile.

deciduous, petiolate.

1 or 2, smooth.

3 or 4, mottled grayish, 4–7 mm.