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This is an undescribed new species that we are planning to publish as Costus convexus. It is quite common in this area and I have seen in all across the eastern flanks of the mountains from Putumayo, Colombia to Zamora-Chinchipe in Ecuador. It is a huge plant, with large leaves and inflorescence, sometimes growing to 5 meters tall. The young shoots and leaves usually have a white powdery (glaucous) coating. The upper leaves tend to wrap around and hide the inflorescence. It will be named for the convex shape of the bracts.