Common Name: Romaine Lettuce (Garden Lettuce, Cos Lettuce).
Latin Name:Lactuca sativa
Family Name: Asteraceae/Compositae (Daisy family).
Like many other types of lettuce, Romaine should be fed only in moderation, as it is mainly water and not high in nutritional values. However, it has slightly higher levels of vitamins A, C, E, calcium, and fibre than Iceberg Lettuce and so is a better choice to feed.