|Passiflora × kewensis|
|P. platyloba fruit , often confused with P. quadrangularis|
About 500, see list
Passiflora is also known as the passion flowers or passion vines. It is a genus of about 500 species of flowering plants. They are mainly vines, with some being shrubs, and a few species being herbaceous. See passionfruit for information about the fruit of the passiflora plant.
The family Passifloraceae is characterized by a pantropical distribution. Passiflora is absent from Africa, which, instead, hosts many other members of its family (e.g. the more plesiomorphic Adenia).
There are nine species of Passiflora native to the USA, from Ohio to the north, west to California and south to the Florida Keys. Most other species are found in South America, China, and Southern Asia, New Guinea, four or more species in Australia and an endemic species in New Zealand.