Bromeliad plant (Vriesea poelmanii) in flower. The flower spikes (red) are emerging from the rosettes of leaves (bottom). Bromeliads are tropical plants, mostly found in South America, that have clusters of thick leaves. Most are also epiphytic plants that grow on rocks or other plants for support, and obtain nutrients from the air and rain. Photographed at the Harry P. Leu Gardens, Florida, USA.