Soreng, R. J., G. Davidse, P. M. Peterson, F. O. Zuloaga, E. J. Judziewicz, T. S. Filgueiras & O. Morrone. 2003 and onwards. On-line taxonomic novelties and updates, distributional additions and corrections, and editorial changes since the four published volumes of the Catalogue of New World Grasses (Poaceae) published in Contr. U.S. Natl. Herb. vols. 39, 41, 46, and 48. http://www.tropicos.org/Project/CNWG:. In R. J. Soreng, G. Davidse, P. M. Peterson, F. O. Zuloaga, T. S. Filgueiras, E. J. Judziewicz & O. Morrone (eds.) Internet Catalogue of New World Grasses. Missouri Botanical Garden, St. Louis.
