Which species is found at higher elevations, Arundina or Guzmania?
Guzmania Guzmania (tufted airplant) is a genus of over 120 species of flowering plants in the botanical family Bromeliaceae, subfamily Tillandsioideae. They are mainly stemless, evergreen, epiphytic perennials native to Florida, the West Indies, southern Mexico, Central America, and northern and western South America. They are found at altitudes of up to 3500 m in the Andean rainforests.
Gustavia (plant) Gustavia is a genus of flowering plants of Lecythidaceae family described by Linnaeus in 1775. It is native to tropical Central America and South America. Many of the species are threatened; some are critically endangered "Gustavia superba", though, is actually abundant in re-growing secondary forests. It grows in northern South America, from Panama south through the Andes as far as Ecuador, and along the Caribbean coast and in the Amazon basin.