Columnea is a genus of ca. 200 species of epiphytic herbs and shrubs in the flowering plant family Gesneriaceae, native to tropical America and the Caribbean. A common name is Flying Goldfish Plant (see also Nematanthus). The tubular or oddly shaped flowers are usually large and brightly colored, sometimes giving the impression of flying fish. Flowers are usually red, yellow, or orange.
The segregate genus Bucinellina is considered by many botanists synonym of Columnea. A full list of the species now accepted in the genus, along with their synonyms, can be found at the World Checklist of Gesneriaceae.