Peterson, P. M.; Romaschenko, K.; Soreng, R. J.; Valdés Reyna, J. (2019). A key to the North American genera of Stipeae (Poaceae, Pooideae) with descriptions and taxonomic names for species of Eriocoma, Neotrinia, Oloptum, and five new genera: Barkworthia, ×Eriosella, Pseudoeriocoma, Ptilagrostiella, and Thorneochloa. PhytoKeys. 126: 89-125.
Peterson, P. M.; Romaschenko, K.; Soreng, R. J.; Valdés Reyna, J.
2019
A key to the North American genera of Stipeae (Poaceae, Pooideae) with descriptions and taxonomic names for species of Eriocoma, Neotrinia, Oloptum, and five new genera: Barkworthia, ×Eriosella, Pseudoeriocoma, Ptilagrostiella, and Thorneochloa