However, recent studies have also shown that molecules present in many other plants demonstrate strong anticancer activity. For example, when comparing the anticancer potential of several commonly consumed vegetables in Quebec, we discovered that the Allium family (garlic, onions, leek) as well as crucifers (cauliflower, cabbage, etc.) significantly inhibit the growth of cancer cells derived from various types of tumors. Similarly, we also observed the tremendous anticancer potential of many berries on a number of very aggressive cancer cell lines. Furthermore, herbs such as parsley and thyme also contain high concentrations of cancer-preventing molecules that interfere with the recruitment of smooth muscle cells involved in the stabilization of new tumor blood vessels. Flavonols, which are found in abundant quantity in many fruits and vegetables, also exhibit anticancer properties. Finally, we observed that curcumin (the principal pigment of turmeric) inhibits tumor growth and angiogenesis in glioblastoma xenografts.