Palmer & Steyermark [1] ) is a vine of the Ranunculaceae (buttercup family) native to North America from Newfoundland to southern Manitoba down to the Gulf of Mexico.

The name "Love Vine" also is applied to alleged aphrodisiacs, such as Caribbean species of Cassytha, which are unrelated to Clematis, not being in the family Ranunculaceae.

The leaves are opposite and pinnately compound, trifoliate (3 leaflets) that have coarse unequal teeth on the margins.

It produces small dull white flowers of width 13 to 19 mm (1⁄2 to 3⁄4 in) from July to September that are faintly sweetly fragrant; sometimes dioecious so that there are separate staminate (male) and pistillate (female) plants.

The dry fruit is an achene with long hair as silvery gray feathery plumes attached in late August into November.