Flora of North America species comparison

erect or ascending, 30–120(–150) cm, glabrous or puberulent.

erect or ascending, 20–90 cm, puberulent and glandular-puberulent or scabrous, often glabrate.

puberulent or glabrous;

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

distal 5–20 × 1 mm, margins entire.

puberulent or glandular-puberulent, often glabrescent;

proximal 20–35 mm, margins 3–7 lobed, lobes 0.5–1.5 mm wide;

distal 10–20 mm, margins entire or 3-lobed.

capitate spikes, 2–4-flowered, 15–20 mm;

bracts 1–3, flabelliform, 5–8 mm, margins 3–7-lobed, lobes green, narrowly ovate.

capitate spikes, 2–12-flowered, 20–40 mm;

bracts 2–10, green or purple distally, 15–30 mm, margins (4 or)5–9-lobed, lobes linear.

bracteoles 8–10 mm, margins entire.

bracteoles 15–30 mm, margins toothed or lobed.

calyx 8–10 mm, tube 0 mm, apex 2-fid, cleft 0.5–1 mm;

corolla pale yellow to yellow with purple markings, 8–9 mm, throat 4 mm diam., adaxial lip 3–4 mm, ca. equal to and appressed to adaxial;

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

calyx lanceolate, 20–25 mm, tube 3–4 mm, apex 2-fid, cleft 1–2 mm;

corolla bright or pale yellow or lavender-pink with purple markings, 20–30 mm, throat 6–8 mm diam., abaxial lip 5–8 mm, ca. equal to and appressed to adaxial;

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

oblong-ovoid, 5–8 mm.

oblong, 10–15 mm.

4–6, dark brown, ovoid to narrowly reniform, 2.5–3 mm, striate.

15–20, brown, oblong-ovoid, 2–2.5 mm, reticulate.

= 28.