Tillandsia aeranthos bergeri, often referred to just as Tillandsia bergeri, or simply bergeri, is native to Argentina. Part of the Bromeliad family, all Tillandsia species are air plants. In its natural mountainous environment, the bergeri can be found attached to rocks and tree branches.
For an air plant, it's robust, easy-to-care-for, and fast-growing. The gray-green, narrow, tapering leaves are tough, and they quickly develop into a tight clumping form.