Scientific name of Broccoli is Brassica oleracea var. italic. The edible portion of a broccoli is its immature buds and thick fleshy flower stalk. There are two types of broccoli available in the market: green sprouting broccoli and purple-colored broccoli. Green sprouting broccoli contains a group of green, immature buds and thick fleshy flower stalk forming a head while purple-colored broccoli forms curds and look like cauliflower. Scientific Name of Brussels Sprouts is Brassica oleracea var. Gemmifera. It is a tall- stemmed Cole crop where axillary buds forming in the axis of each leaf are used as vegetables.