Flora of North America species comparison

bark exfoliating in plates;

nodal diaphragms 1.5–3 mm thick;

branchlets slightly angled when young, becoming terete, arachnoid or arachnoid-floccose, sometimes glabrescent, growing tips not enveloped by unfolding leaves;

tendrils along length of branchlets, soon deciduous if not attached to support, branched, tendrils (or inflorescences) at only 2 consecutive nodes;

nodes not red-banded.

bark exfoliating in shreds;

nodal diaphragms 1.5–3.5 mm thick;

branchlets slightly to distinctly angled, densely hirtellous and/or sparsely to densely arachnoid, to glabrate, growing tips not enveloped by unfolding leaves;

tendrils along length of branchlets, persistent, branched, tendrils (or inflorescences) at only 2 consecutive nodes;

nodes sometimes red-banded.

stipules 1.5–3 mm;

petiole 1/2 to ± equaling blade;

blade cordate to cordate-ovate, 5–12 cm, usually unlobed to 3-shouldered, sometimes shallowly 3-lobed, apex acute to acuminate, abaxial surface not glaucous, moderately to sparsely arachnoid, visible through hairs, veins and vein axils sometimes only hirtellous, adaxial surface sparsely arachnoid or glabrous.

stipules 1–3 mm;

petiole ± equaling blade;

blade cordate, 6–20 cm, usually unlobed to 3-shouldered, sometimes 3-lobed, apex acute to acuminate, abaxial surface not glaucous, sparsely to densely arachnoid or glabrous, visible through hairs, veins and vein axils hirtellous, adaxial surface glabrous or hairy.

4–12 cm.

10–25 cm.

functionally unisexual.

functionally unisexual.

black, slightly or not glaucous, globose, 6–10 mm diam., skin separating from pulp;

lenticels absent.

black, slightly or not glaucous, globose, 4–8 mm diam., skin separating from pulp, lenticels absent.

= 38.