As an early-diverging genus in its family, it is of interest for the study of the evolution of the grasses. Hence, the genome of P. latifolius has been sequenced.[6]
^USDA, NRCS (n.d.). "Pharus". The PLANTS Database (plants.usda.gov). Greensboro, North Carolina: National Plant Data Team. Retrieved 24 September 2015.
^Judziewicz, E. J. 1994. 22. Pharus P. Browne. 6: 218–220. In G. Davidse, M. Sousa Sánchez & A.O. Chater (eds.) Flora Mesoamericana. Universidad Nacional Autónoma de México, México, D.F.