Flora of North America species comparison

puberulent and glandular-puberulent to glabrate.

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

5–7-lobed.

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, 2–12-flowered, 20–40 mm;

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

5–12-flowered, 25–40 mm;

bracts 4–10.

bracteoles 20–25 mm, margins pinnately lobed, lobes 5–7.

bracteoles 15–30 mm, margins toothed or lobed.

corolla pale yellow with purple markings, 20–30 mm.

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, 10–15 mm.

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