Flora of North America species comparison

10–15(–20) cm.

to 15 cm.

9–12-flowered.

(3–)5–15-flowered.

calyx 7.8–10 mm, tube 6–10 mm, lobes 1.5–3 mm;

corolla lavender, purple, or almost white, wing tips often white;

banner (17–)19–20.5 mm.

calyx 9–12(–14.3) mm, tube 6.3–9(–9.3) mm, lobes 1.4–4.5(–5.3) mm;

corolla usually pink-purple, rarely white;

banner (14.5–)16–22(–24) mm;

keel (11.5–)12.8–17.3(–18.5) mm.

ascending to descending, dorsiventrally compressed, lunately incurved, oblong-ellipsoid, (12–)17–20 × 6–9 mm, unilocular, apex obcompressed proximal to incurved beak, glabrous or sparsely strigulose.

ascending, initially subterete or ± dorsiventrally compressed, ± straight, subsymmetrically oblong-ellipsoid, ± laterally compressed and obtuse-angled when mature, 15–28(–30) × (4–)5–9(–10) mm, subunilocular, base obtuse or sometimes cuneate, apex abruptly contracted into subulate, pungent beak, sutures prominent, strigulose.

33–40.

(33–)40–50(–56).

= 22.