Oncidium altissumum "in situ"

This orchid is fairly common in moist middle elevation forests in the north of Puerto Rico. There is some confusion between this species and Onc. wydleri, mainly because in the forests of Puerto Rico you can find forms that are intermediate between the description of the two species. I think the two names just describe very slightly different forms of the same species. This plant is sometimes confused with Onc. baueri which doesn't occur in the Caribbean. After particularly severe storms you can occasionally find plants from this species on the ground, particularly those that have been growing on dead branches .