Dendrobium Roy Tokunaga orchid is a cross between Dendrobium atroviolaceum and Dendrobium johnsoniae. It is part of the Latouria section (also known as New Guinea Dendrobium) Flower size: 4 - 7.5 cm, depending on the age and size of the plant Pot diameter: 9.5 cm Note: The number of bulbs, leaves and stems varies from one specimen to another. Due to the fact that it is a hybrid, the flowers show some variations in shape and cut. See full care instructions for Dendrobium Nora Tokunaga on the Blog.