Dr. John L. Clark discovered and described a new plant species, Gasteranthus diverticularis, from a remote lowland rainforest in southern Ecuador. The new species is known from one population near the border of the Parque Nacional Podocarpus. The name reflects the resemblance of the flower’s ventral pouch with lateral protrusions to diverticula, a circumscribed pouch or sac that branches out from a hollow organ or structure.

A photograph of the flower was featured on the cover of the journal Brittonia.