This unique assortment comes with sea urchin shells and Tillandsia Ionantha Air Plants. Your Air Plants will look like little sea creatures coming out of their shells! The Airplant scientifically known as Tillandsia is a genus of more than 650 species of evergreen, perennial flowering plants in the family of Bromeliaceae. They are referred to as Air Plants because they get their nutrients from the air around them. These adorable little plants are super low maintenance and pet-friendly.