Flora of North America species comparison

basal;

petiole rounded, 4–15 cm;

blade round, ovate, or reniform, 3–15 cm, thin, base cordate, margins serrate to dentate, ciliate, surfaces hairy to glabrate.

basal;

petiole flattened, 4–8 cm;

blade ovate to elliptic, 1–4 cm, fleshy, base attenuate to ± truncate, margins serrate (15–30- toothed), eciliate, surfaces densely tangled, reddish brown-hairy abaxially, glabrous adaxially.

15+-flowered, congested, spikelike thyrses, 15–50(–70) cm, tangled, pink- to purple-tipped stipitate-glandular.

15+-flowered, open, flat-topped thyrses, 5–20 cm, purple-tipped stipitate-glandular; (bracts often tangled brown-hairy).

sepals reflexed, oblong to ovate;

petals cream to yellowish, not spotted, oblong, not clawed, 3–4.5 mm, longer than sepals;

filaments narrowly club-shaped;

pistils connate at least 1/2 their lengths;

ovary superior, (to 1/3 adnate to hypanthium).

sepals spreading, ovate, (often tangled brown-hairy);

petals white, not spotted, ovate to elliptic, clawed, 2–4 mm, longer than sepals;

filaments linear, flattened to slightly club-shaped;

pistils distinct almost to base;

ovary superior, (to 1/3 adnate to hypanthium).

green, purplish tinged, ± folliclelike, (basally connate).

greenish to reddish purple, folliclelike.

= 20, 38, 56, 58.