Woody climber. Leaves pinnate. Leaflets 7-9 entire, lobed or divided into 3. Flowers solitary, bell-shaped; spring to summer. Perianth segments 4, thick, violet. Styles brown, feathery.

E North America

Source: Gubbins, B.; Spencer, R. (1997). Clematis. In: Spencer, R.. Horticultural Flora of South-eastern Australia. Volume 2. Flowering plants. Dicotyledons. Part 1. The identification of garden and cultivated plants. University of New South Wales Press.