Plant evolution story begins about two billion ago the very first plants appeared on the plant in the form of minute organisms that inhabited the sea. The first plants were blue green algae an it take another 1,400,000,000 years for them to establish themselves at least partly on land.
The first land plants were the ancestors of mosses, hornworts and liverworts and were very short. Slowly, plants grew in height to become as large as today’s massive ferns. Next, seed bearing plants evolved, forming huge forests. The next major step in the evolutionary history of plants was much later, when flowering plants known as angiosperms first emerged.