What are the main divisions and representing species of the gymnosperms?
This group of plants can be divided into conifers (pine, sequoia, cypress), that have flowers known as strobiles (cones), cycads (very ancient gymnosperms, like the cycads used in garden architecture, that also form strobiles), gnetaceae (gnetum) and ginkgos (the known species is Ginkgo biloba).
