As flowers vegetables is called buds or flowers , as vegetables are eaten. The flowering vegetables include artichoke , cauliflower , broccoli and zucchini flowers . The flowers are harvested before they open, i.e. before they are fully developed, otherwise they will lose their aroma.
Different flowering vegetables.
Artichoke flower ( Cynara cardunculus )
Cauliflower, also cauliflower, cheese cabbage, flower cabbage, grape cabbage or Italian cabbage ( Brassica oleracea var. Botrytis )