The fruit is a pepo, a type of botanical berry, round to oval, either yellow or dark purple at maturity, with a soft to firm, juicy interior filled with numerous seeds.

[2] Passiflora edulis is a perennial vine; tendrils are borne in leaf axils, and have a red or purple hue when young.

[3] The outside color of the pepo ranges from dark purple with fine white specks to light yellow.

[1] The dark purple edulis variety is smaller than a lemon, though it is less acidic than yellow passion fruit, and has a richer aroma and flavour.

[Note 1][15] Passion fruit is widely grown in tropical and semitropical regions of the world.

In the passion fruit, this virus appears with yellow mottling on leaves starting at random points on the vine and diminishing in intensity towards the tip.

Expanding leaves typically become twisted, curl downward, and develop a "shoestring" appearance as a result of a restriction of the leaf surface.

Varietal resistance is the primary management tool, and eliminating weeds and infected perennial ornamentals that may harbor the virus is critical.

Phytoplasma infection is characterized by chlorotic small leaves, shortening of internodes, excessive lateral shoots and abnormal flowers.

Although Phytoplasma can be spread through grafting, it can be inhibited by periodic inspection of plant nurseries and areas that have had past infections.

[citation needed] Bacterial leaf spot, which causes vein clearing, forms bright yellow colonies causing infection and leaf wilt and, eventually, deterioration of fruit pulp, especially of young fruits.

Under favorable conditions for the bacteria, infection occurs through natural openings or wounds from other pathogens that affect leaf inter-cellular spaces.

The pathogen has ability to survive for long periods, penetrating roots, invading the xylem, and preventing the transport of water and nutrients to other organs of the plant.

Once infected, this disease causes leaves to yellow and browning of the vascular system until they wilt and die.

[25] The anthracnose, a canker caused by Colletotrichum gloeosporiodes, is a pathogen of the passion fruit creating dark and sunken lesions of the trunk.

Under warm and humid conditions, this disease can worsen, causing red and orange spores eventually killing the plant.

Managing this disease involves a combination of using pathogen-free seedlings, eliminating infected areas, and improving ventilation and light conditions.