What structural difference exists when comparing Broccolini's florets to standard broccoli's?

Broccolini has smaller florets

When comparing broccolini to its traditional counterpart, standard broccoli, noticeable differences exist in structure and physical dimensions. Standard broccoli is characterized by having denser and substantially larger florets. Because the floret is often considered the most nutrient-packed part of the brassica head, this density means one gets a higher concentration of floret material per bite from traditional broccoli. In contrast, broccolini was bred to feature significantly smaller florets. Furthermore, broccolini compensates with longer, more tender stalks that cook evenly, whereas the thicker stems of standard broccoli often require separate, longer cooking times or preparation techniques like peeling to become palatable.