Flora of North America species comparison

12–45 cm.

15–35(–40) cm.

petiole 2.5–10 cm, subglabrous or short stipitate-glandular and long stipitate-glandular, longer hairs retrorse, white, tan, or brown;

blade cordate, cordate-ovate, or reniform, usually shorter than or sometimes ± as long as wide, 1.2–6 × 2–8 cm, margins shallowly 5- or 7-lobed, crenate, uniformly ciliate, apex of terminal lobe rounded to obtuse, surfaces short stipitate-glandular and sparsely long stipitate-glandular;

cauline leaves absent.

petiole 1.2–8(–11.3) cm, short stipitate-glandular and densely long stipitate-glandular, longer hairs spreading or retrorse, reddish brown;

blade cordate-ovate to cordate-oblong, longer than wide, 2.7–7 × 1.5–5.4 cm, margins shallowly 5-, 7- or 9-lobed, doubly crenate-dentate or dentate, glabrous or irregularly ciliate, apex of terminal lobe acute to obtuse, surfaces sparsely short stipitate-glandular and long stipitate-glandular to sparsely long stipitate-glandular along primary veins abaxially, long stipitate-glandular adaxially;

cauline leaves absent.

1–3, closely 4–20-flowered, 1 flower per node, weakly secund or not secund, 12–45 cm, short stipitate-glandular and, sometimes, sparsely long stipitate-glandular proximally and distally.

1–3(–6), closely 20–60-flowered, 1(–2) flowers per node, not secund, 15–35(–40) cm, subglabrous or short stipitate-glandular and sparsely long stipitate-glandular proximally, short stipitate-glandular and, rarely, long stipitate-glandular distally.

0.3–1.5 mm, short stipitate-glandular.

1–2 mm, short stipitate-glandular.

hypanthium campanulate, 1–1.5 × 1.5–2.5(–3) mm;

sepals erect or spreading, whitish or purple tinged, oblong to triangular-ovate, 0.8–1.5 × 1–1.3 mm;

petals white, sometimes pink or purple tinged, 3-lobed or, sometimes, unlobed, 1–3.5 mm, lobes lanceolate, lateral lobes ascending;

stamens 5, opposite sepals;

filaments white, 0.1–0.2 mm;

anthers 0.1–0.2 × 0.1–0.2 mm;

ovary ca. 1/2 inferior;

styles divergent, flattened, 0.1–0.2 mm;

stigmas unlobed.

hypanthium shallowly saucer-shaped, 0.8–1 × 2–3.5 mm;

sepals spreading to recurved, greenish, triangular, 0.7–1 × 0.9–1.9 mm;

petals greenish yellow, 3–9-lobed, 1.5–2 mm, lobes linear, lateral lobes spreading;

stamens 5, opposite sepals;

filaments white, 0.1–0.3 mm;

anthers 0.1–0.2 × 0.2–0.4 mm;

ovary nearly completely inferior;

styles divergent, flattened, 0.2–0.3 mm;

stigmas 2-lobed.

dark reddish brown, 0.7–1 mm, pitted.

reddish purple or blackish, 0.8–1.1 mm, pitted.

= 14.

= 14.