A popular food of the ancient Romans, broccoli once grew wild on the shores of the Mediterranean Sea. Its use can be traced to 16th century France and England in the 1700s, with commercial growth beginning in the U.S. in the 1920s
Broccoli has branched out, so to speak, to a number of its closest relatives: Broccoli raab doesn’t have the tree-like “heads” we’re used to, but resembles broccoli florets on long, thin stems. Its cousin, broccoli rapini, has fewer florets and a mustard-like flavor. Broccoflower, a cross between broccoli and cauliflower, is pale green with densely packed heads like cauliflower, but tastes like broccoli. Chinese broccoli has broad, glossy, blue-green leaves with long, crisp, thick stems and a small head. If you run across Broccolini (baby broccoli), it’s a trademarked name for a broccoli and Chinese kale hybrid, with a long, juicy stem topped with tiny florets.