Flora of North America species comparison

0.3–1.2 m;

herbage harshly stellate-hairy.

1–2 m;

herbage harshly and moderately stellate-hairy.

blades shallowly and crenately 3-lobed or deeply 3- or 5-lobed with terminal lobe narrowly oblong and toothed apically, 1.5–8 cm wide, lobes triangular, base cuneate to truncate, margins irregularly serrate, sinuses narrow.

blades deeply (3-), 5-, or 7-lobed, 8–20 cm wide, lobes broadest at middle, base truncate to cordate, margins serrate or irregularly dentate.

solitary flowers or few-flowered clusters;

involucellar bractlets linear to subulate, 5–8 × 1 mm, ca. 1/2 – 2/3 calyx length.

cymes, forming interrupted spikes or racemes;

involucellar bractlets broadly elliptic-lanceolate to ovate, 10–14 × 4–6 mm, equaling or exceeding calyx.

calyx 9–12 mm, lobes broadly ovate, 4–6 × 4–6 mm, ± as wide as long, ± equaling tube;

petals rose-purple, 1.5–3 cm.

calyx 8–10 mm, lobes triangular-ovate, 5–8 × 4–5 mm, slightly longer than broad, slightly longer than tube;

petals rose-purple, 2–3 cm.

3 or 4, dark brown, 2 mm, finely stellate-puberulent.

2 or 3, dark brown, 2 mm, puberulent.

depressed-globose, 10–15 mm diam.;

mericarps ca. 10–12, 8–10 mm.

10–15 mm diam.;

mericarps 10–14, 6–8 mm.