Originating in Holland, this cross between broccoli and cauliflower looks like a light green cauliflower and has a milder flavor than either of its parents. The trademarked name broccoflower is owned by Tanimura and Antle, a California company. Choose a firm head with compact florets; the leaves should be crisp and green. Avoid any specimens with browning. Store unwashed tightly wrapped broccoflower in the refrigerator for up to 5 days. Wash thoroughly just before using. Broccoflower can be cooked in any way suitable for cauliflower. This vegetable is high in vitamin C, folic acid and copper.