Clematis dubia (Endl.) P.S.Green

Vigorous woody climber. Young stems finely ridged. Leaves simple, unifoliolate, rarely trifoliolate, glabrous, broadly ovate to suborbicular, 5–11 cm long, 4–10 cm wide, truncate to usually cordate, entire (juvenile leaves coarsely serrate), obtuse to somewhat acute, palmately 3–5-veined. Inflorescence unisexual, axillary, 3–10 cm long, 2–5 cm wide, puberulous. Perianth segments ligulate, 5–9 (–11) mm long, white, with a few scattered dorsal hairs. Anthers with a short apiculum. Ovaries and achenes hairy.

Formerly widespread and recorded as reaching the tops of the trees, but now rather rare and rarely flowering. Grows on the forest margins and in clearings (Director of National Parks 2010: 82).