Flora of North America species comparison

basal;

petiole flattened, 2–5 cm;

blade ovate, 2–7 cm, fleshy, base attenuate, margins serrate, rarely subentire, ciliate, surfaces hairy.

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.

20+-flowered, (flowers often secund), open, lax thyrses with distant lateral branches, 15–30(–40) cm, purple-tipped stipitate-glandular.

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

sepals reflexed, sometimes spreading, triangular to ovate;

petals white, not spotted, elliptic to oblong, clawed, 2.5–4.5 mm, longer than sepals;

filaments linear, flattened;

pistils connate to 1/2 their lengths;

ovary 1/2+ inferior, appearing superior in fruit.

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).

purplish, folliclelike.

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