Flora of North America species comparison

erect, densely tufted, unbranched distally.

erect, tufted, unbranched, stout, usually hollow.

basal and cauline, persisting until after flowering;

stipules 4–8 mm;

proximal petioles 4–20 cm, distal ones 1.5–5 cm;

leaflets 6–15, blades white to greenish, (20–)25–70 × 4–10 mm, abaxial surface hairy-strigulose or sericeous, adaxial surface strigulose-silky to sparsely hairy or glabrous.

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.

6–20 cm;

flowers whorled or spirally arranged.

open, 6–40 cm;

flowers ± whorled.

2.5–6 cm;

bracts tardily deciduous, 5–9 mm.

3–13 cm;

bracts deciduous, 7–11 mm.

(2–)4–10 mm.

(2–)3–15 mm.

8–12 mm;

calyx asymmetrical but not spurred, silky, abaxial lobe entire, 4–7 mm, adaxial lobe 2-fid, 3–5 mm;

corolla pale sulfur yellow, blue, or white, banner glabrous or sparsely hairy abaxially (pubescence extending above calyx as a line), upper keel margins usually ciliate most of length, sometimes glabrous.

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.

2–3 cm, pilose to silky.

2.5–5 × 0.7–1 cm, hairy.

deciduous, petiolate.

deciduous, petiolate.

4 or 5, pinkish brown.

3–9.