Nuclear Reactors Australian Nuclear Association Air Plants: Unique Houseplants that Grow Without Soil Dennis' 7 Dees Landscaping Services & Garden Centers Did you know that the oldest living group of land plants is called Bryophytes? Appearing about 480 million years ago, the bryophytes include hornworts, liverworts, and mosses. These plants lack true vascular Meet the Power Plant Tucked into Garages and Basements KQED