: I'm not that good, it's just we see and accustom to different things. Papaya and Manihot are plants that is too ordinary in our country, both are important crop.
papaya easily pop up in garden as they have many seed, grow easily and super-speed,
tapioca rarely grow and bit slow from seed even in tapioca farm, so it is bit uncommon.
for leaves morph there are quite variation in C papaya, and young plants have bit variation also.
Trivia: in my country we use both Papaya and Manihot as leaves vegetables. especially male papaya they are only used as veggies, young leaves and flower, boiled many times with lots of water to reduce bitterness.
For tapioca plant we have many variety specially intended for leaves, not for tuber, I loves it a lot so grow them a lot too. (be careful there are also variety contain more toxic components though)