Dendrobium violaceum is from the wonderful Oxyglossum section of the genus and from New Guinea, the home of most of the species in that section. The Oxyglossum Dendrobiums are notable for their small size and their colorful and long-lived flowers. It is not uncommon that the flowers of these plants last for six months. Many or the related species are tiny plants, but this not. I can grow as tall as 45 cm, though this plant is only 20 cm. The flowers are 3 cm.