Passiflora biflora

Passiflora biflora, the twoflowered passionflower, is a vine with paired peduncles and flowers up to 3.5 cm (1.4 in) wide. It is native to the New World from Mexico to Colombia, Venezuela, and the West Indies. In Florida, P. biflora has been classified by the Exotic Pest Plant Council as a non-native species that has the "potential to disrupt native plant communities." Besides the paired flowers, its other unique feature is its corona which is entirely yellow.