Ecology and distribution. Dry inter-Andean valleys or puna; on soil and rocks. Ecuador 3220 m. Cano et al. 2008.
Aloina bifrons is distinguished by the piliferous leaf apices, costa with dorsal stereids absent or in one layer; similar to the A. roseae with piliferous leaves, but that species has dorsal stereids in 2-3 layers.