Scientific name of arugula is Eruca sativa. Arugula belongs to the family Brassicaceae, the cabbage family (syn. Cruciferae). All members of Brassicaceae are believed to be originated in the region comprising of Western Europe, the Mediterranean region and the temperate regions of Asia.
Scientific name of portulaca greens is Portulaca oleracea. Portulaca belongs to the family Portulacaceae. It is believed to be originated in the Indian subcontinent. Common names of portulaca are Common purslane, verdolaga, red root, or parsley.