What is this plant with a fruit which has red grained mushy flesh inside?
Looks like Passiflora caerulea fruit. The specific epithet caerulea means “blue” and refers to the blue coronal filaments of the flower.
Passiflora caerulea, the blue passionflower, bluecrown passionflower or common passion flower. Other names include blue crown, flower of five wounds, southern beauty, wild apricot, Jesus flower. It is a species of flowering plant, a vigorous, deciduous or semi-evergreen tendril vine.
The fruit is an oval orange-yellow berry, containing numerous seeds.. It is edible to humans, but bland in flavour. A tea can be made of the flower which is said to alleviate stress and anxiety.
Passiflora caerulea Fruit
and Passiflora caerulea Flower
Yes, it is a blue passionflower fruit (Passiflora caerulea). The fruits aren’t very tasty raw, but they have a vaguely blackberry-like flavor and can be substituted in blackberry pie recipes.
The passion fruit that is most commonly eaten is Passiflora edulis.