Flora of North America species comparison

suberect to scandent or climbing, angular, striate, diffusely branched, glabrous, sometimes papillose, distal branches usually glabrous.

ocrea mostly persistent, brownish hyaline, cylindric, 3–5 mm, margins truncate to rounded, eciliate, faces glabrous;

petiole (3–)6–12(–17) mm, glabrous;

blade triangular-lanceolate, (2–)2.5–4(–5.5) × (0.8–)1.2–2.5(–3) cm, subcoriaceous, base hastate, margins entire or irregularly wavy, glabrous or scabrous, apex acute, glabrous adaxially and abaxially, sometimes papillose abaxially, minutely punctate abaxially and adaxially.

terminal and axillary, 3–5(–8) cm.

ascending to spreading, 1.5–2 mm.

1(–3) per ocreate fascicle;

perianth white, greenish white, or greenish;

tepals connate ca. 1/4 their length, lanceolate-ovate to obovate, 2–3 mm, apex rounded to acute.

anthers yellow or pink, ovate.

tube reddish purple to black in fruit.

usually included, black, subglobose, 3–4 × 2.5–3.5 mm, shiny, smooth.