Capers are the brined flower buds of the Capparis spinosa bush. This low growing bush is native to the Mediterranean. Capers are frequently paired with lemon in sauces. The smallest of the buds are the nonpareil from France. The largest are referred to as caper berries and are frequently brined with the stem still attached. The image below shows a large (about 4") caper flower from a wild caper growing in Maui, Hawaii. The caper berries are also very large, about 1 1/2" or more long.