Flora of North America species comparison

very short, densely tufted, branched.

erect, ascending, or decumbent, branched distally.

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.

mostly cauline, basal normally absent;

stipules 5–7 mm;

petiole 2–14 cm (longer proximally becoming shorter distally);

leaflets 5–13, blades 10–60(–90) × 3–11(–19) mm, surfaces usually silky, rarely thinly silky appearing glabrous abaxially.

flowers solitary or paired, axillary.

12–25(–42) cm;

flowers whorled or spirally arranged.

1.5–4 mm;

bracts persistent, 1 mm.

2–4 cm;

bracts subdeciduous, 5–8 mm.

1 mm.

2–5(–6) 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.

8–14(–18) mm;

calyx sometimes slightly saccate, abaxial lobe subentire or entire, 5 mm, adaxial lobe 2-fid, 6 mm;

corolla pale purple to bright blue, sometimes yellowish or whitish, banner spot white to yellow turning brown, banner well reflexed-recurved at or proximal to midpoint, this 3.5–6 mm proximal to apex, keel moderately curved, banner silky-hairy abaxially, adaxial keel ciliate almost full length, not reaching tip.

0.6–1 cm, pilose.

2–3.7 cm, densely pilosulous.

persistent, disclike, sessile.

deciduous, petiolate.

1 or 2.

(2 or)3–5(–7).