Flora of North America species comparison

erect, tufted, unbranched, stout, usually hollow.

erect, ascending, or decumbent, branched distally.

basal and cauline;

stipules not leaflike, green to silvery, 5–40 mm;

petiole 3–45 cm, basal long-petiolate and forming a basal tuft, cauline petioles shorter distally;

leaflets (5 or)6–12(–17), blades (10–)30–150 × 5–25 mm, adaxial surface hairy or glabrous.

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.

open, 6–40 cm;

flowers ± whorled.

12–25(–42) cm;

flowers whorled or spirally arranged.

3–13 cm;

bracts deciduous, 7–11 mm.

2–4 cm;

bracts subdeciduous, 5–8 mm.

(2–)3–15 mm.

2–5(–6) mm.

9–15 mm;

calyx 4–8 mm, bulge or spur 0–1 mm, lobes entire;

corolla violet to lavender, pink, or white, banner patch yellow to white, sometimes turning red-purple, banner glabrous abaxially, keel upcurved, glabrous, ciliate, or ciliolate.

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.

2.5–5 × 0.7–1 cm, hairy.

2–3.7 cm, densely pilosulous.

deciduous, petiolate.

deciduous, petiolate.

3–9.

(2 or)3–5(–7).