1、 Blade difference

Passionflower leaves are papery, about 5-7 cm long and 6-8 cm wide. The base is heart-shaped. The middle lobe is oval and oblong. Compared with the lobes on both sides, it is slightly smaller, entire and hairless

The leaves of Siraitia grosvenorii are membranous, which are wider than the former, about 12-23cm long and 5-17cm wide. The base is nearly circular or heart-shaped. There are small teeth at the edge because of the extension of small veins. The leaf surface has sparse pubescence, which will fall off to be hairless when old

2、 Fruit difference

Passiflora is a berry, which is ovoid, spherical to nearly round, about 6 cm long, yellow or orange in color at maturity, with many seeds, inverted heart-shaped, about 5 mm long

The fruit of Siraitia grosvenorii is oblong or spherical, about 6-11cm long and 4-8cm in diameter. At the beginning, it has dense yellowish brown fur and black glandular scales. It gradually falls off after aging, leaving a circle of fur on the fruit stem. There are also many seeds, which are broad ovate or nearly round, about 15-18 mm long and 10-12 mm wide