Flora of North America species comparison

erect or ascending, 10–50 cm, densely glandular-pubescent and pilose.

erect or ascending, rarely decumbent, not fleshy, hairy or glabrous.

glandular-pubescent and pilose;

proximal 20–40(–50) mm, margins 3-lobed, lobes 1–2 mm wide;

distal 10–30 × 1 mm, margins entire.

cauline, alternate;

petiole absent;

blade not fleshy, not leathery, margins entire or 3–7-lobed.

capitate spikes, 2–5-flowered;

bracts 1–5, 10–20 mm, margins 3-lobed, lobes green and purple, linear to linear-lanceolate.

terminal, spikes or flowers solitary, often capitate;

bracts present.

bracteoles 12–18 mm, margins entire.

absent;

bracteoles absent.

calyx 10–15 mm, tube 2–4 mm, apex 2-fid, cleft 3–5 mm;

corolla purple-red, apex yellow, 10–20 mm, throat 4–6 mm diam., abaxial lip 3–5 mm, ca. equal to and appressed to adaxial;

stamens 2, filaments glabrous, fertile pollen sacs 1 per filament, vestigial pollen sacs present.

sepals 2, calyx bilaterally symmetric, spathelike, lobes triangular;

petals 5, corolla yellow, yellow-green, purple, pink, or red, strongly bilabiate, club-shaped, abaxial lobes 3, middle lobe tightly revolute, tip distinctly folded inside-out, adaxial 2, adaxial lip galeate, rounded at apex, opening downward;

stamens (2 or)4, didynamous, filaments hairy or glabrous;

staminode 0;

ovary 2-locular, placentation axile;

stigma slightly expanded at apex.

ovoid to oblong-ovoid, 5–7 mm.

dehiscence loculicidal.

4–6, dark brown, narrowly ovoid to reniform, 2–2.5 mm, reticulate.

4–25, pale brown to dark brown, ovoid to reniform, wings absent.

= 6, 7.

= 26.