These are passion flowers. They have unique floral structures, which in most cases require biotic pollination (they rely on living pollinators to move the pollen from one flower to another). If you look carefully a bumblebee can be seen on the extreme left flower. Most species have round or elongated edible fruit from two to eight inches long and an inch to two inches across, depending upon the species.

Passion flowers have a distinctive corona. The flower is pentamerous and ripens into an indehiscent fruit with numerous seeds.

The "Passion" in "passion flower" refers to the passion of Jesus in Christian theology. In the 15th and 16th centuries, Spanish Christian missionaries adopted the unique physical structures of this plant, particularly the numbers of its various flower parts, as symbols of the last days of Jesus and especially his crucifixion.

'Passiflora' has a largely neotropic distribution, unlike its family 'Passifloracea', which includes more Old World species (such as the genus Adenia). The vast majority of 'Passiflora' are found in Mexico, Central and South America, although there are additional representatives in the United States, Southeast Asia, and Oceania

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