Dendrobium vexillarius is a high altitude miniature species from Papua New Guinea. It is variable both in plant size and in flower color. My plant is 8cm tall, but may grow larger since it was grown from a seedling and began flowering when only half its present size. The unusually colored flowers are 3cm and last for many months. They are produced at the end of the older pseudobulbs, often after the leaves have fallen off, and are usually two or three to each growth.