Bromeliads include epiphytes, such as Spanish moss, and ground plants, such as the pineapple. Many bromeliads have a "cup" formed by their tightly-overlapping leaves, in which they store water. However, the family is diverse enough to include the cup-type epiphytes, grey-leaved Tillandsias (which gather water only from leaf structures called trichomes[?]), and even a large number of desert-dwelling succulents[?].
The largest bromeliad is Puya raimondii[?] (growing way too tall for your backyard), and the smallest is probably Tillandsia usneoides, or 'Spanish moss'.