The karst region has been subdivided by Monroe into valley features, hill features, trenches, caves, and minor features. The hill features have also been subdivided into cone darst, mogotes, and river and coastal rampart. Evergreen and semi-evergreen seasonal forests are present on the first two. These are sharp-pointed or oval hills. In cone karst the hills are surrounded by limestone whereas mogotes are surrounded by blanket deposits.
Soils are well-drained, rocky, steep, and shallow.
One population occupies a small area which is 200 meters from a major highway. Wild yams can be found in forest areas and are cultivated. Fruits have only recently been described. Little is known about the phenology of this plant. Flowering occurs in May with fruit appearing from August through September.