125g. Class 1. Local/English. Rocket is a leafy green plant that belongs to the genus Eruca and the family Brassicaceae. It is closely related to radish, kale, and cauliflower. Rocket has several different names depending on what area of the world you are in and does not hold back in making its presence known. Both nutty and a bit peppery, it adds oomph to everything from salads to pestos.