I'm pretty sure it's what we call rapini. I find that the most accurate way to translate words like that is to use Wikipedia. Look it up in one language and then use their drop down menu for articles about the same topic in other languages.Only if it's a different type of broccoli which we call "broccoli di rape" or "friarelli" which are mainly grown in Southern Italy, they are often eaten with sausages, or with pasta and also for a special kind of pizza.
Google translation : Turnip tops?
BTW, I had rapini as part of my supper tonight.