Heliconians to feed on multiple species of Passiflora Gulf fritillary (Agraulis vanillae), which feeds on several species of Passiflora, such as Passiflora lutea, Passiflora affinis, stinking passion flower (P. foetida), and Maypop (P. incarnata) American Sara longwing (Heliconius sara) Red postman (Heliconius erato) Asian leopard lacewing (Cethosia cyane). Postman butterfly (Heliconius melpomene) prefer P. menispermifolia and P. oerstedii Zebra longwing (Heliconius charithonia) feed on yellow passion flower, two-flowered passion flower (P. biflora), and corky-stemmed passion flower (P. suberosa) Banded orange (Dryadula phaetusa) feed on P. tetrastylis Julia butterfly (Dryas iulia) feed on yellow passion flower and P. affinis Swift moth Cibyra serta Tawny Coster (Acraea terpsicore) feed on Passiflora edulis, Passiflora foetida and Passiflora subpeltata The generally high pollinator and parasite specificity in Passiflora may have led to the tremendous morphological variation in the genus. It is thought to have among the highest foliar diversity among all plant genera, with leaf shapes ranging from unlobed to five-lobed frequently found on the same plant. Coevolution can be a major driver of speciation, and may be responsible for the radiation of certain clades of Passiflora such as Tacsonia. The bracts of the stinking passion flower are covered by hairs which exude a sticky fluid. Many small insects get stuck to this and get digested to nutrient-rich goo by proteases and acid phosphatases. Since the insects usually killed are rarely major pests, this passion flower seems to be a protocarnivorous plant. Banana passion flower or "banana poka" (P. tarminiana), originally from Central Brazil, is an invasive weed, especially on the islands of Hawaii. It is commonly spread by feral pigs eating the fruits. It overgrows and smothers stands of endemic vegetation, mainly on roadsides. Blue passion flower (P. caerulea) is holding its own in Spain these days, and it probably needs to be watched so that unwanted spreading can be curtailed. On the other hand, some species are endangered due to unsustainable logging and other forms of habitat destruction. For example, the Chilean passion flower (P. pinnatistipula) is a rare vine growing in the Tropical Andes southwards from Venezuela between altitude, and in Coastal Central Chile, where it only occurs in a few tens of square kilometres of fog forest by the sea, near Zapallar. P. pinnatistipula has a round fruit, unusual in Tacsonia group species like banana passion flower and P. mixta, with their elongated tubes and brightly red to rose-colored petals.