Flora of North America species comparison

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

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

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.

cauline, alternate;

petiole absent;

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

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.

terminal, spikes or flowers solitary, often capitate;

bracts present.

bracteoles 15–20 mm, margins entire or toothed.

absent;

bracteoles absent.

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.

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.

oblong-ovoid, 6–10 mm.

dehiscence loculicidal.

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

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

= 6, 7.

= 28.