Flora of North America species comparison

1–2 m, paniculately branched;

herbage sparsely hispid, hairs simple, forked, and stellate.

1–2 m;

herbage sparsely stellate-pubescent to glabrate.

blades 5- or 7-lobed, 5–10 cm wide, lobes lanceolate to triangular, base truncate to cordate, margins with coarse rounded to pointed teeth.

blades deeply 5- or 7-lobed, 6–13 cm wide, lobes lanceolate to triangular, middle lobe ± equaling to 2 times length of lateral lobes, base truncate to cordate, margins coarsely dentate.

solitary flowers or few-flowered clusters forming open panicles;

involucellar bractlets linear to linear-lanceolate, 5–10 × 1 mm, 1/3–1/2 calyx length.

clusters forming interrupted spikes to racemes;

involucellar bractlets lanceolate-ovate, 8–12 × 2–3 mm, 3/4 as long as calyx.

calyx 15–20 mm, lobes lanceolate to ovate-lanceolate, 10–15 mm, longer than wide, exceeding tube, hirsute with few-rayed hairs 1–2 mm;

petals deep rose-purple, 1.5–2.5 cm.

calyx 11–18 mm, lobes triangular-ovate, 8–10 × 5–8 mm, broader than long, exceeding tube, densely villous-hirsute;

petals pink, drying purplish, 2–3 cm.

2 or 3, dark brown, 2.5–3 mm, muricate, with few simple hairs.

12–15 mm diam.;

mericarps 12, 10 mm.