Flora of North America species comparison

5–10 dm, verruculose distally.

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

spikes, densely flowered, obviously involucrate (proximalmost several whorls of bracts subtending rudimentary buds), 11.5–16 mm diam.;

axis not visible, 0.4–0.7 cm;

bracts deciduous, interfloral ones sometimes held in place by crowded flowers, 2–6.5 mm.

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.

0–1 cm.

(1–)2.5–14 cm.

10, 7.5–9 mm, filaments distinct to 1.8–2.8 mm, anthers 0.6–0.7 mm.

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

bicolored, banner cream, reddish in age, epistemonous petals pink-purple; papilionaceous;

banner 6–7.5 mm, blade ovate- or deltate-cordate, 2.8–4.2 × 3.4–4.4 mm; epistemonous petals attached proximal to middle of stamen tube;

wings 4.1–5 × 2–2.6 mm;

keel connate valvately, blades 5.2–6.8 × 3–3.5 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, (4.5–)4.8–7.2 mm, densely pilose;

tube 2.4–3.4 mm, hyaline intervals usually with row of inconspicuous blister glands between ribs (or eglandular), lobes triangular-aristate, spurred laterally near proximal end, unequal, abaxial longest.

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.

2.5–3 mm, densely pubescent distally, eglandular.

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

1.5–1.8 mm.

1.6–1.8(–2) mm.

leaves 0.5–1.5 cm;

leaflets 5 or 7(or 9), blades obovate to oblanceolate, 1.5–5 mm.

leaves 3–10 cm;

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

herbs, erect, glabrous proximal to inflorescences.

= 14.

= 14 (Mexico).