Angraecum eburneum

Native to southeastern Kenya, eastern Tanzania, and islands of the western Indian Ocean, this large evergreen orchid grows on tree branches or rocks and can reach about 3 feet tall. Its waxy flowers have a broad white lip held above the greenish petals and sepals, giving them an upside-down appearance. The long nectar spur and gardenia-like fragrance, strongest at night, are associated with moth pollination. Mature flower stems can carry 10 to 15 long-lasting blooms. Thick aerial roots attach the plant to its support. Photographed in Florida.