Those wild passionfruits were pretty common, when ripe its
yellow with white flesh and black seed. Very tasty. Used to
fight for it.
You mean tapioca tree with all green leaf stalk, with the
unedible root.

Not trees lah.
Plants....I didnt know they were edible till I was in Secondary
schools and I read and saw somewhere about those tapioca.
Those 1980-1990s days nobody borthers to harvest them and they
grew everywhere.