Orchids from the summit were also a significant component of the botanical discoveries.

Tepui orchids tend to be small, often growing directly on wet rock surfaces, with adaptations to the high UV radiation, low nutrient availability, and constant moisture of the summit environment.

Several orchid species from Roraima and nearby tepuis were described from early expedition collections.

The documentation of the summit flora from these early expeditions provided material for a botanical literature that grew through the early twentieth century and continues today.

The flora of the Pantepui region — the collective designation for the tepui highland ecosystem — is now one of the more intensively studied components of South American botanical diversity, though it remains incompletely known.