Vitis rotundifolia

Plants usually high climbing or sprawling, sometimes shrubby, usually sparsely branched. Branches: branchlets terete to slightly angled, usually sparsely grayish arachnoid, glabrescent, growing tips not enveloped by unfolding leaves; tendrils along length of branchlets, persistent, tendrils (or inflorescences) at only 2 consecutive nodes; nodes sometimes red-banded. Leaves: stipules 1–2 mm; petiole mostly ± equaling blade; blade cordate to nearly reniform, 2–12 cm, rarely lobed, apex short acuminate, abaxial surface not glaucous, glabrous, visible through hairs, veins and vein axils sometimes sparsely to densely hirtellous, adaxial surface glabrous. Inflorescences 3–8(–10) cm. Flowers functionally unisexual. Berries usually black or purplish, sometimes bronze when ripe, glaucous, globose, 8–25 mm diam., skin separating from pulp; lenticels present.

Distribution

• Generated Map
• Legacy Map

c, e United States.

Discussion

Varieties 2 (2 in the flora).

Selected References

None.

Lower Taxa

Vitis rotundifolia var. munsoniana, Vitis rotundifolia var. rotundifolia

Key

1	Berries 15–25 mm diam., usually 2–8 per infructescence; seeds 9+ mm.	Vitis rotundifolia var. rotundifolia
1	Berries 8–12 mm diam., 12–30 per infructescence; seeds to 6 mm.	Vitis rotundifolia var. munsoniana