Taiwan 2025 - Very Different Grapes (sort of)

Have you ever seen grapes growing on the branches of a tree instead of on a vine?  Don't think these are true grapes, but whatever they are they were in season and everywhere.  They do taste like grapes, but different in that the skins are thick and bitter, not edible, and there is only one seed in the middle.  I was the only one in Chenjean's house that claimed to like them, so got a big bowlful both in the morning and also during the heat of mid-afternoon.  The skins filled up an entire teacup by the time I finished each serving...