Flora of North America species comparison

blades broadly ovate or suborbiculate, unlobed or 3- or 5-lobed, 3–6(–8) cm, surfaces: moderately to copiously hairy, hairs grayish to tawny, 10–30-armed, basal sinus open, not overlapping.

blades ± round, 3-, 5-, or 7-lobed, 5–11(–20) cm, thick, surfaces: adaxial tawny and densely stellate-hairy (velvety to scabrous-tomentose), basal lobes overlapping.

usually short, interrupted, spicate to racemose, flower clusters sessile or short-pedunculate, glomerate to open, usually leafy;

involucellar bractlets filiform, 5–13 × 1 mm, mostly 2/3 to equaling calyx length.

spicate to racemose, flower clusters usually short-pedunculate, glomerate;

involucellar bractlets subulate, 1.5–4 × to 1 mm, usually less than 1/2 calyx length.

calyx angled or slightly winged in bud, 7–15 mm, lobes lanceolate, triangular, or ovate, 4.5–12 × 1.7–3(–4) mm, 2–3 times as long as wide, 2–3 times tube length, apex long-acuminate, densely stellate-hairy, hairs many-armed;

petals pink, to 2 cm.

calyx campanulate, 5–9 mm, lobes triangular to ovate, 3–5 × 1.8–3.2(–4) mm, slightly longer than wide, slightly longer than tube, apex acute to short-mucronate, densely stellate-hairy, hairs 10–30-armed;

petals mauve, to 1.5 cm.

2–3.2 mm.

2–3 mm.

= 34.

= 34.