represent Heaven and Purity. In addition, the flower is open for three days, symbolising the three years of Jesus' ministry. The flower has been given names related to this symbolism throughout Europe since the 15th century. In Spain, it is known as ('thorn of Christ'). Older Germanic names include ('Christ's crown'), ('Christ's bouquet'), ('crown of thorns'), ('Jesus' passion'), ('passion') or ('Mother of God's star'). Outside the Roman Catholic heartland, the regularly shaped flowers have reminded people of the face of a clock. In Israel they are known as "clock-flower" () and in Greece as "clock plant" (); in Japan too, they are known as . In Hawaiian, they are called ; is a string used for tying fabric together, such as a shoelace, and means 'to spring forth leave'. In India, blue passionflowers are called () in Karnataka and Maharashtra, while in Uttar Pradesh and generally north it is colloquially called (referring to the five Pandavas in the Hindu epic, the ). The five anthers are interpreted as the five Pandavas, the divine Krishna is at the centre, and the radial filaments are opposing hundred. The colour blue is moreover associated with Krishna as the colour of his aura. In northern Peru and Bolivia, the banana passionfruits are known as . This is one possible source of the name of the Tumbes region of Peru. In Turkey, the shape of the flowers have reminded people of Rota Fortunae, thus it is called . In South Africa the passionfruit is known as a granadilla. Taxonomy Passiflora is the most species rich genus of both the family Passifloraceae and the tribe Passifloreae. With over 550 species, an extensive hierarchy of infrageneric ranks is required to represent the relationships of the species. The infrageneric classification of Passiflora not only uses the widely used ranks of subgenus, section and series, but also the rank of supersection. The New World species of Passiflora were first divided among 22 subgenera by Killip (1938) in the first monograph of the genus. More recent work has reduced these to 4, which are commonly accepted today (in order from most basally to most recently branching): Astrophea (Americas, ~60 species), trees and shrubs with simple, unlobed leaves Passiflora (Americas, ~250 species), woody vines with large flowers and elaborate corolla Deidamioides (Americas, 13 species), woody or herbaceous vines Decaloba (Americas, Asia and Australasia, ~230 species), herbaceous vines with palmately veined leaves