Flora of North America species comparison

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

erect, 30–90 cm, hirsute to pilose, hairs glandular and eglandular.

puberulent or glabrous;

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

distal 5–20 × 1 mm, margins entire.

densely pilose;

proximal 5–20 mm, margins 3-lobed, lobes 1 mm wide;

distal 5–15 × 1 mm, margins entire.

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

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

spikes, 1(–4)-flowered;

bract 1, 5–7 mm, 3-lobed, lobes green or purple, narrowly lanceolate.

bracteoles 8–10 mm, margins entire.

bracteoles 10–20 mm, margins entire.

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 10–17 mm, tube 2 mm, apex 2-fid, cleft 0.5–1 mm;

corolla bright yellow, 15–20 mm, throat 3–5 mm diam., abaxial lip 7–10 mm, shorter than adaxial and slightly spreading;

stamens 4, filaments hairy, fertile pollen sacs 1 per filament, vestigial pollen sacs present.

oblong-ovoid, 5–8 mm.

oblong-lanceoloid, 7–8 mm.

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

15–20, light brown, reniform, 1.5–2 mm, reticulate and papillate.

= 28.

= 26.