Flora of North America species comparison

erect or ascending, 10–90(–120) cm, densely puberulent and glandular-puberulent, and pilose.

erect, 10–30(–90) cm, puberulent, sometimes pilose.

puberulent and pilose;

proximal 15–40 mm, margins 3-lobed, lobes 0.1–0.5 mm wide;

distal 10–25 × 0.1–0.3 mm, margins entire.

puberulent;

proximal 10–40 mm, margins 3–5-lobed, lobes 1–2 mm wide;

distal 10–15 × 0.5–1 mm, margins entire.

spikes, 2- or 3-flowered, or flowers solitary;

bracts 1–4, 10–20 mm, margins entire or 3-lobed, lobes green or purple distally, linear-lanceolate.

capitate spikes, 3–7-flowered;

bracts 1–7, 10–20 mm, margins 5–7-lobed, lobes green, sometimes purple distally, filiform.

bracteoles 15–20 mm, margins entire or toothed.

bracteoles 10–20 mm, margins entire.

calyx 15–20 mm, tube 0–1 mm, apex 2-fid, cleft 0.5–1 mm;

corolla pale yellow to yellow-green, streaked and spotted with maroon, 15–20 mm, tube 5–10 mm, throat 5–8 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.

calyx 15–20 mm, tube 0 mm, apex entire or 2-fid, cleft 0–1 mm;

corolla pale yellow, spotted and streaked with purple, 10–20 mm, throat 4–6 mm diam., abaxial lip 3–5 mm, ca. equal to and appressed to adaxial;

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

oblong-ovoid, 6–10 mm.

oblong-lanceoloid, 8–10 mm.

10–18, dark brown, ovoid, 1.5–2.5 mm, striate.

10–20, light brown, narrowly ovate, 1.5–2 mm, reticulate.

= 28.

= 24.