Flora of North America species comparison

ascending or erect, branched or unbranched.

erect, tufted, unbranched, stout, usually hollow.

basal and cauline;

stipules well developed;

petiole 1.5–4.5 cm;

leaflets 5–7, blades 7–22 × 3–6 mm, adaxial surface softly villous.

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.

well exserted, several–many-flowered, 3–7 cm;

flowers crowded, whorled proximally, becoming spirally arranged distally.

open, 6–40 cm;

flowers ± whorled.

2–5.5 cm;

bracts persistent, 5–7 mm.

3–13 cm;

bracts deciduous, 7–11 mm.

2–4 mm.

(2–)3–15 mm.

8–10 mm;

calyx 5–8 mm, lobes unequal, adaxial lobe less than 1/2 as long as abaxial;

corolla blue or whitish and blue-tipped, keel 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.

not obviously undulate, 1–1.3 cm, softly villous-pilose.

2.5–5 × 0.7–1 cm, hairy.

persistent or deciduous, disclike, sessile, leaving a circular scar.

deciduous, petiolate.

2.

3–9.