Flora of North America species comparison

ribbed, (1.5–)5–10(–12) dm, glandular-verrucose distally.

spikes, relatively densely flowered, not involucrate, 13–16 mm diam.;

axis usually not visible, (1.5–)2–8 cm;

bracts deciduous by anthesis, (3–)4–8 mm.

(1–)2.5–14 cm.

8–10, (7.5–)8–11 mm, filaments distinct to 0.1–1.6 mm, anthers 0.4–0.5 mm.

white, sometimes banner purplish in age;

not conventionally papilionaceous;

banner 4.9–7.3 mm, blade lanceolate-oblong to oblong-elliptic, 3–4.8 × 2.2–2.3 mm; epistemonous petals attached near or proximal to middle of stamen tube, blades somewhat unequal, laterals (2–)3.4–5 × 1–1.8 mm, abaxials 3–3.7 × 1.1–1.6 mm.

asymmetric, recessed opposite banner, 4.8–7 mm, glabrous;

tube (2.5–)2.7–3.8 mm, with 2–4(–8) large glands between ribs, lobes triangular-aristate.

2.2–2.8 mm, pilosulous distally and dotted with small glands.

1.6–1.8(–2) mm.

herbs, erect, glabrous proximal to inflorescences.

leaves 3–10 cm;

leaflets 19–37, blades oblong-elliptic to oblanceolate, 2–9 mm.

= 14 (Mexico).