Flora of North America species comparison

decumbent to prostrate, often tangled in other vegetation, 2–12 dm, herbaceous, puberulent in lines or throughout, glandular or not.

spreading;

petiole 0.5–3.5 cm;

blade broadly deltate or ovate, 1.5–8 × 1–7.5 cm, fleshy, base cordate, apex usually acute or acuminate (rounded), surfaces glabrous or pubescent, and then often glandular.

loosely and narrowly cymose;

involucres solitary or clustered at ends of branches, or solitary in axils, 5–9 mm, lobes triangular, base 50–70% of height.

3 per involucre;

perianth purplish to pale pink (white), 0.5–0.9 cm.

olive, dark brown and black-mottled, or evenly black, sometimes faintly marked with 5 shallow grooves, broadly obovoid to nearly spheric, 2.5–3.5 mm, smooth or slightly rugose.

= 60.