Flora of North America species comparison

erect or ascending, very short, tufted or spreading, branched.

erect, unbranched or branched distally.

cauline, crowded near base;

stipules well developed;

petiole 2–9 cm;

leaflets 7–11, blades 10–30 × 4–10 mm, adaxial surface glabrous.

cauline;

stipules not leaflike, green to silvery, 5–16 mm;

petiole 3–6 cm;

leaflets 7–12, blades 30–80 × 4–8 mm, adaxial surface sparsely pubescent.

several–many-flowered, 3–14 cm;

flowers spirally arranged.

4–22 cm;

flowers ± whorled.

1–10 cm;

bracts persistent, straight, 2–4 mm.

3–12 cm;

bracts deciduous, 5–9 mm.

1–4 mm.

2–6 mm.

4.5–7 mm;

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

corolla dark blue-purple or whitish with blue tip, banner spot white becoming yellow, keel blunt, glabrous.

13–16 mm;

calyx bulge or spur 0–1 mm, abaxial lobe entire or 3-toothed, 7–11 mm, adaxial lobe 2-toothed, 6–10 mm;

corolla light blue to purple, banner patch yellowish to white, banner glabrous abaxially, keel upcurved, glabrous, banner ovate, wings wide, covering keel tip.

undulate, 1.5–2 cm, not constricted between seeds, ciliate with long, dense hairs, sides with short, inflated hairs becoming scaly on drying.

3–4 cm, silky.

persistent, disclike, sessile.

deciduous, petiolate.

2, wrinkled.

3–7, beige, speckled brown, 4–6 mm.