Plants, especially land plants belong to the eukaryotic super group known as Archaeplastida wherein it contains mainly of three phyla, which are phyla Rhodophyta, Streptophyta and Cholorphyta, which are all mostly photosynthetic. The closest living relatives of the plants are the Streptophyta, it is classified as a complex green algae, which contains the same category of plastids and pigments, which a plant holds.