How do you know if something is a gymnosperm?
gymnosperm, any vascular plant that reproduces by means of an exposed seed, or ovule—unlike angiosperms, or flowering plants, whose seeds are enclosed by mature ovaries, or fruits. The seeds of many gymnosperms (literally “naked seeds”) are borne in cones and are not visible until maturity.
What are the unique features of gymnosperms?
Gymnosperms have an evolutionary significance and show some unique features. Their characteristic feature is the absence of flowers and the presence of naked, open seeds. As they do not have flowers, consequently, fruits are also absent in these group of plants. The main source of pollination and dispersal is wind.
What makes a Gymnosperm a Gymnosperm?
The gymnosperms (lit. revealed seeds), also known as Acrogymnospermae, are a group of seed-producing plants that includes conifers, cycads, Ginkgo, and gnetophytes. The non-encased condition of their seeds contrasts with the seeds and ovules of flowering plants (angiosperms), which are enclosed within an ovary.