Bromeliads

The Bromeliaceae (the bromeliads) are a family of monocot flowering plants of about 80 genera and 3700 known species,[2] native mainly to the tropical Americas, with several species found in the American subtropics and one in tropical west Africa, Pitcairnia feliciana.[3] It is among the basal families within the Poales and is the only family within the order that has septal nectaries and inferior ovaries.[4] These inferior ovaries characterize the Bromelioideae, a subfamily of the Bromeliaceae.[5] The family includes both epiphytes, such as Spanish moss (Tillandsia usneoides), and terrestrial species, such as the pineapple (Ananas comosus). Many bromeliads are able to store water in a structure formed by their tightly overlapping leaf bases. However, the family is diverse enough to include the tank bromeliads, grey-leaved epiphyte Tillandsia species that gather water only from leaf structures called trichomes, and many desert-dwelling succulents. The largest bromeliad is Puya raimondii, which reaches 3–4 metres (9.8–13.1 ft) tall in vegetative growth with a flower spike 9–10 metres (30–33 ft) tall,[6][7] and the smallest is Spanish moss.[citation needed]