Flora of North America species comparison

(1–)2–5(–15), erect to weakly erect, 1.5–9 dm, essentially glabrous, but often with trace of simple or 4-rayed stellate hairs, glaucous.

stipules persistent, linear-lanceolate to subulate, 4–12.5(–15) mm;

petiole 3.5–16 cm;

blade cordate, suborbiculate, or ovate, crenate or 3–5-lobed, 2.5–8(–16) × 2.5–8(–14) cm, surfaces sparsely hairy with simple hairs abaxially, glabrate adaxially, lobes oblanceolate to obtrullate.

racemose;

involucellar bractlets absent.

bisexual, rarely functionally pistillate;

calyx lobes valvate in bud, forming apiculate or acuminate point;

petals reddish purple without white basal spot, rarely white or intergrading shades of pink, 1.6–3.2 cm.

6–7.5 mm diam.;

mericarps 10–16, 2.5–3 × 2.5–3 mm, glabrous or with simple, appressed hairs, indehiscent;

beaks prominent or not, 0.7–1.2 mm;

collars absent or very weakly developed.

= 28.