You can use floral to describe something that contains flowers or is made of flowers. eye-catching floral arrangements. made of flowers or decorated with flowers or pictures of flowers (flos; FLORA)
resembling or made of or suggestive of flowers; "an unusual floral design" of or relating to the plant life in a particular region; "characteristic alpine floral elements" relating to or associated with flowers; "floral organs
This does not refer to any single flower, but rather to the nose of some white wines that have a ripe, rich, slightly fragrant nose, which, when taken as a whole, is reminiscent of flowers