Flora of North America species comparison

ascending, 30–100(–150) cm, pubescent, hirsute, glabrescent, puberulent, sparsely hispid, or downy.

erect, 10–80 cm, puberulent, pubescent, or densely villous.

puberulent and often hirsute;

proximal 10–40 mm, margins 3-lobed, lobes 1–3 mm wide;

distal 10–30 × 0.5–1.5 mm, margins entire or 3-lobed.

glandular-pubescent;

proximal 10–40 mm, margins 3–5-lobed, lobes linear to filiform, 1–3 mm wide;

distal 10–25 × 1 mm, margins entire.

capitate spikes, 2–15-flowered;

bracts 5–10, 5–20 mm, margins entire or 3-lobed, lobes purplish black, ivory, or green distally, linear-lanceolate to linear or slightly spatulate.

capitate spikes, 2–12-flowered, or flowers solitary;

bracts 1–6, 10–40 mm, margins 3-lobed, lobes purple distally, narrowly lanceolate, linear, or filiform.

bracteoles 14–20 mm, margins entire or toothed.

bracteoles 10–40 mm, margins pinnately lobed.

calyx 10–20 mm, tube 1–2 mm, apex entire or 2-fid, cleft 0–1 mm;

corolla pale yellow with purple veins and an abaxial, U-shaped, purple mark, 8–20 mm, throat 5–10 mm diam., abaxial lip 6–10 mm, ca. equal to and appressed to adaxial;

stamens 4, filaments hairy, fertile pollen sacs 2 per filament, subequal.

calyx 15–30(–40) mm, tube 1–2.5 mm, apex 2-fid, cleft 2–3 mm;

corolla lavender-pink to purple-red or yellow with purple veins and markings, 15–25(–30) mm, throat 5–7 mm diam., abaxial lip 5–10 mm, ca. equal to and appressed to adaxial;

stamens 4, filaments hairy, fertile pollen sacs 2 per filament, equal.

oblong-ovoid, 8–12 mm.

oblong-lanceoloid, 6–12 mm.

10–25, dark brown, oblong-ovoid, 1.5–2 mm, striate.

15–20, light brown, ovoid to reniform, 2–2.5 mm, reticulate and papillate.

= 28.