Pomme de terre (IIRC) is a sad version of a underground apple.

Pineapples look like a pinecone but with a sweet fruit inside. Makes sense to me.

Then again horse apples, i.e., horse shit doesn’t taste great at all. Then again, again: horse apples, the Osage Orange fruit, are inedible. Osage Orange is neither an apple or orange tree.

English 'tis a silly language.