Flora of North America species comparison

erect, tufted, unbranched, stout, usually hollow.

very short, tufted, branched.

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.

cauline, crowded near base;

stipules well developed;

petiole 1–6 cm;

leaflets (3 or)5–9, blades 8–20 × 2–9 mm, adaxial surface glabrous.

open, 6–40 cm;

flowers ± whorled.

dense, 3–16-flowered, 1–8 cm;

flowers spirally arranged, crowded.

3–13 cm;

bracts deciduous, 7–11 mm.

1–8(–10) cm;

bracts persistent, straight, 2–3 mm.

(2–)3–15 mm.

0.3–1.5 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.

6–8 mm;

calyx abaxial lobe entire or shallowly cleft, ± 6 mm, adaxial lobe 2-toothed, 3 mm, less than 1/2 as long as abaxial;

corolla bright blue, banner spot white or yellow, keel glabrous.

2.5–5 × 0.7–1 cm, hairy.

not undulate, 1 cm, thinly pilose to coarsely hirsute.

deciduous, petiolate.

persistent, disclike, sessile.

3–9.

1 or 2, smooth.