Many varieties of the same species can be used in many different ways ; for example , C. annuum includes the `` bell pepper '' variety , which is sold in both its immature green state and its red , yellow or orange ripe state . . Many varieties of the same species can be used in many different ways ; for example , C. annuum includes the `` bell pepper '' variety , which is sold in both its immature green state and its red , yellow or orange ripe state .