Flora of North America species comparison

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

fully unfolded;

petiole (9–)12.8–19(–28) mm;

blade elliptic to suborbiculate, (22–)33–46(–61) × (13–)25–32(–50) mm, base subcordate to truncate, each margin with (0 or)1–6(–11) teeth on proximal 1/2 and (2–)4 or 5(–7) teeth in distalmost cm, largest teeth 1 mm, apex usually truncate, sometimes mucronate to acute, abaxial surface glabrous or sparsely hairy by flowering, glabrous (or sparsely hairy) later, adaxial glabrous later.

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.

(4–)6–8(–10)-flowered, (17–)26–36(–47) mm.

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

(0 or)1 or 2 subtended by a leaf, proximalmost (4–)9–14(–18) mm.

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

sepals erect to recurved after flowering, (2.6–)3.3–4.3(–5.3) mm;

petals obovate to oblanceolate, (10.8–)13.3–20.1(–23.2) × (2.3–)3.3–6.3(–7.5) mm;

stamens (14–)18–20(–21);

styles (4 or)5, (1.7–)2.6–4(–4.8) mm;

ovary apex glabrous or sparsely hairy (or with a ring of hairs at base of styles).

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.

bluish black, 10 mm diam. 2n = 4x.

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