Flora of North America species comparison

1–50, rhizomatous or suckering and forming scattered colonies.

partly to fully unfolded;

petiole (5–)9.3–16.7(–24) mm;

blade elliptic or oblong to ovate or obovate, (20–)31–47(–62) × (12–)21–35(–45) cm, base rounded to cordate, each margin with (0 or)1–6(–13) teeth on proximal 1/2 and (0–)3–6(–9) teeth in distalmost cm, largest teeth more than 1 mm, apex broadly subacute to rounded and mucronate, abaxial surface densely hairy by flowering, surfaces sparsely (moderately) hairy (or glabrous) later.

mostly unfolded;

petiole (3–)6.8–19.1(–28) mm;

blade usually elliptic to oval to suborbiculate, sometimes quadrangular, (14–)24–47(–67) × (7–)17–36(–55) mm, base usually subcordate to truncate, sometimes ± tapering or ± cuneate, each margin with 0–3(–9) teeth on proximal 1/2 and (0–)3–5(–8) teeth in distalmost cm, largest teeth more than 1 mm, apex rounded to truncate or occasionally acute or mucronate, abaxial surface sparsely to densely hairy (or glabrous) by flowering, sparsely to moderately hairy (or glabrous) later, adaxial glabrous or sparsely (moderately) hairy later.

(5–)7–11(–14)-flowered, (12–)18–32(–51) mm.

(4–)6–11(–16)-flowered, (8–)14–43(–62) mm.

(0 or)1(or 2) subtended by a leaf, proximalmost (4–)6–11(–16) mm.

(0 or)1 or 2(or 3) subtended by a leaf, proximalmost (2–)3–20(–29) mm.

sepals spreading to recurved after flowering, (1–)1.6–2.7(–3.6) mm;

petals to ivory, obovate-oblong, (4.3–)5.9–8.7(–11.3) × (1.4–)2.3–3.9(–5) mm;

stamens (14–)18–21(–22);

styles (3–)5, (1.8–)2.3–3(–3.6) mm;

ovary apex densely hairy.

sepals erect to recurved after flowering, (1.4–)2.2–4(–4.9) mm;

petals oblanceolate to oval or obovate to elliptic, (5.7–)9.5–14(–18.8) × (2.2–)3.3–5.2(–6.6) mm;

stamens (10–)15–21(–22);

styles (3 or)4 or 5(or 6), (1.3–)2–2.9(–3.9) mm;

ovary apex moderately to densely hairy (or glabrous).

almost black, 6–8 mm diam. 2n = 2x, 3x, 4x.

black or purple, 8–15 mm diam.