Flora of North America species comparison

terete when young, glabrous.

weakly to moderately pungent, glabrous;

stipules subreniform, 10–20 × 5–14 mm, eglandular;

petiole glandular, glands clavate;

blade roughly symmetric, 1.5–6 × 2.5–9 cm, shallowly 3-lobed, middle lobe as long as or longer than lateral lobes, margins serrate basally;

abaxial fine veins moderately raised, abaxial nectaries absent.

floral tube cuplike, 3–5 mm deep;

sepals white, 30–35 × 7–12 mm;

petals white, 20–30 × 6–10 mm;

corona filament whorls 4, outer filaments green basally, white apically, with alternating lines of purple, linear, terete, 7–15 mm.

yellow to yellow-orange, ovoid, 30–50 × 25–35 mm.

bracts ovate, 10–20 × 9–12 mm, margins basally serrate to glandular-serrate basally.