Flora of North America species comparison

prostrate to decumbent, branched, not weak, from woody base.

decumbent to erect, few to several-tufted, unbranched or branched.

cauline, often appearing clustered near base first year;

stipules 7–16 mm;

petiole 2–10 cm;

leaflets 5–9, blades 15–35 × 3–9 mm, adaxial surface pubescent.

mostly basal with 3 or 4 cauline;

stipules not leaflike, green to silvery, 8–12 mm;

basal petioles 4–7 cm, proximal cauline petioles 3.5–15 cm, distal ones 2–3.5 cm;

leaflets 5–9, blades 15–70 × 3–8 mm, surfaces densely pubescent, adaxially less pubescent and greener.

± open, 6–16 cm;

flowers whorled or not.

3–10(–12) cm;

flowers in 3–6 whorls.

4–12 cm;

bracts deciduous, 4–7 mm.

2.5–7(–13) cm;

bracts subpersistent, 4–10 mm.

4–12 mm.

2–5(–7) mm.

10–16 mm;

calyx bulge or spur 0–1 mm, abaxial lobe 3-toothed or entire, 8–9 mm, adaxial lobe 2-toothed, 7–8 mm;

corolla blue to lilac, white, yellow, rose, or purple (sometimes on same plant), banner patch whitish or yellow, or absent, banner glabrous abaxially, lower keel margins glabrous, adaxial margin ciliate.

10–13 mm;

calyx slightly gibbous adaxially near base, bulge or spur 0–1 mm, abaxial lobe 3-lobed, 5–7 mm, adaxial lobe 2-lobed, 4–6 mm;

corolla blue to purple, banner spot light yellow, banner with inconspicuous hairs abaxially, adaxial keel glabrous or with a few cilia along adaxial edges towards tip, keel upcurved.

3–4 cm, hairy.

1.5–3 cm, silky-pilose.

deciduous, petiolate.

deciduous, petiolate.

7–12.

4–6.