However, there are many other factors at play leading to the rise of such immense biodiversity. The Río Anzu region, in particular, is characterized by a high endemism of plants, much of which can be attributed to the area’s unique geology. Limestone cliffs, underground rivers, and deep caverns infiltrate the landscape, contributing to its rugged and exceptional composition. Many interesting plant species have evolved to live on these limestone features. A rare genus of orchid, named Quechua, was recently discovered in the gorged out river basin.