Flora of North America species comparison

8–25(–40) cm.

petiole 1.5–7.5(–12) cm, subglabrous or short stipitate-glandular and sparsely long stipitate-glandular, longer hairs spreading, reddish brown;

blade broadly cordate to reniform, usually shorter than, sometimes ± as long as wide, 1.5–7.9 × 1.5–11 cm, margins shallowly 7-, 9-, or 11-lobed, singly or doubly crenate-dentate, glabrous or irregularly ciliate, apex of terminal lobe rounded, surfaces glabrous or sparsely short stipitate-glandular and sparsely long stipitate-glandular;

cauline leaves absent.

1–2, densely (6–)20–40(–60)-flowered, 1–2(–3) flowers per node, not secund, 8–25(–40) cm, glabrous or sparsely arachnoid-pilose proximally, glandular-puberulent distally.

1–2 mm, short stipitate-glandular.

hypanthium broadly saucer-shaped, 0.8–1.6 × 2.5–3.5 mm;

sepals spreading, yellowish green or greenish, triangular to broadly triangular, 0.7–1 × 0.9–1.9 mm;

petals greenish yellow or greenish, (4–)7–11-lobed, 1.5–2 mm, lobes linear, lateral lobes spreading;

stamens 5, opposite sepals;

filaments white or greenish, 0.1–0.2 mm;

anthers 0.1–0.2 × 0.2–0.5 mm;

ovary nearly completely inferior;

styles divergent, flattened, 0.1–0.2 mm;

stigmas 2-lobed.

dark reddish brown or blackish, 0.8–1.2 mm, pitted.

= 14.