I have posted several times photos of my Dendrobium polytrichum. The plant has terete leaves and flowers that fit exactly the description in Cootes’ The Orchids of the Philippines.


Less than a year ago, I acquired a plant with flat leaves that I thought are rather interesting, if only from the foliage point. It bloomed a few days ago, two days before the Dendrobium polytrichum bloomed.

From the photos the blooms are very similar. However the plants are so different in morphology.

Would you think they are the same, or not? Would they be varieties of the same species? If not, any ID ideas for the second plant?