 Considered a "primitive" plant — a descendant of possibly the first group of vascular plants from 400 million years ago — that was widespread during the Devonian and Silurian periods — its name means "bare naked" in Latin as it lacks most of the organs found in plants species that evolved later.Noida's botanical garden is divided into 10 sections.The "medicinal plants" section has an astounding variety of 96 plants and is further divided into eight sections named after the parts of the human body they benefit.