Cucumber Claws

Cucumbers picked from the garden have bumpy skins, with a small blunt spine in the center of every wart. (If your knowledge of cucumbers is solely from the grocery store, you won't have encountered these, as they are brushed off when the cucumbers are oiled for cosmetic purposes.) While the cucumbers are still just unfertilized ovaries, they already have those little spines, and as the fertilized fruits start to develop, the spines are fully formed and stickery, like kitten claws.