Flora of North America species comparison

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

ascending, 20–80 cm, densely puberulent and glandular-puberulent, sometimes pilose.

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.

densely glandular-puberulent;

proximal 5–30 mm, margins 3-lobed, lobes 1 mm wide;

distal 5–20 × 1 mm, margins entire.

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.

spikes, 2(or 3)-flowered, or flowers solitary;

bracts 1–3, 5–10 mm, margins 3-lobed, lobes white to cream distally, linear or slightly spatulate, apex rounded to retuse.

bracteoles 15–20 mm, margins entire or toothed.

bracteoles 10–15 mm, margins entire.

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.

calyx 10–15 mm, tube 1 mm, apex entire;

corolla white with purple veins, apex yellow, 10–18 mm, throat 5–8 mm diam., abaxial lip 3–5 mm, ca. equal to and appressed to adaxial;

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

oblong-ovoid, 6–10 mm.

ovoid-oblong, 5–8 mm.

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

6–10, dark brown, ovoid, 2.5–3 mm, striate.

= 28.

= 28.