Under the cabbage family, there are others like cabbage, kale, bok choy, Romanesco, cauliflower, Brussels sprouts, arugula, and kohlrabi. The big flower portion which is at the extreme of a broccoli stalk is called the head of broccoli. Cutting the head into smaller bits and removing the thick stock gives you what is called broccoli florets.
3 ½ cups of broccoli floret can be gotten from an average size of a broccoli stem. You can also get up to 2 cups of stalks that have been cut into pieces and still cook everything together with your broccoli floret to get more quantity.