Flora of North America species comparison

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

erect, 10–80 cm, puberulent, pubescent, or densely villous.

cauline, alternate;

petiole absent;

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

glandular-pubescent;

proximal 10–40 mm, margins 3–5-lobed, lobes linear to filiform, 1–3 mm wide;

distal 10–25 × 1 mm, margins entire.

terminal, spikes or flowers solitary, often capitate;

bracts present.

capitate spikes, 2–12-flowered, or flowers solitary;

bracts 1–6, 10–40 mm, margins 3-lobed, lobes purple distally, narrowly lanceolate, linear, or filiform.

absent;

bracteoles absent.

bracteoles 10–40 mm, margins pinnately lobed.

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.

calyx 15–30(–40) mm, tube 1–2.5 mm, apex 2-fid, cleft 2–3 mm;

corolla lavender-pink to purple-red or yellow with purple veins and markings, 15–25(–30) mm, throat 5–7 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.

dehiscence loculicidal.

oblong-lanceoloid, 6–12 mm.

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

15–20, light brown, ovoid to reniform, 2–2.5 mm, reticulate and papillate.

= 6, 7.