I don't want to highjack one of China's threads, but I couldn't resist commenting on the parsnips/fruit issue.
Curio.... sliced into coins, and fried in butter, until they're a little crispy, is the best way, IMO, to eat parsnips. They end up sweet, a little crispy on the outside, and a bit soft inside. A comfort food in my books, since my dad loves them.
Jim.... I know I've eaten persimmon, and it seems to me we just waited until it was super soft, then sliced it up, nibbling the flesh off the skin (but don't hold me to that). Very tart the ones we had. If you find a good produce department though, you can just ask them to give you samples of their more exotic fruits. I ended up getting a whole group of friends a free sampling of dragon fruit that way once, and the department guy was happy, because he sold not only one to us, but also two to other people who were passing by and heard our praises of it.