Dendrobium macropus subsp. macropus, commonly known as the Norfolk Island orchid, is a flowering plant in the orchid family. It is the nominate subspecies of Dendrobium macropus, which occurs in eastern Australia as well as in Fiji and New Caledonia.
It is an epiphytic orchid. The flowers are peloric; the blunt, linear-elliptic sepals and petals are 1 cm long; the labellum is undifferentiated. The whole population is presumed to be cleistogamous.
Distribution and habitat
The subspecies is endemic to Australia's external territory of Norfolk Island in the Tasman Sea. It is fairly common in forested parts of the island.