A herbaceous perennial vine, climbing by tendrils. Flowers 1–3, arising from leaf axils, about 1 inch across, each on a stalk to 1½ inches long; yellowish-green flowers with numerous fringed floral parts. Blooms May–August. Leaves alternate, shallowly three-lobed, to 4½ inches long and 6 inches wide, on stalks up to 2½ inches long. Fruits egg-shaped or nearly spherical berries containing seeds surrounded by pulpy material, green becoming dark purple at maturity, about ½ inch long.
Similar species: Missouri’s other passion flower is Maypops (P. incarnata), which has larger, purple and white flowers, fruits to 2½ inches long, and deeply 3-lobed leaves.