P. M.  Peterson and de Agrasar, Z. E. Rugolo, ?Danthonia annabeleae (Poaceae: Danthonieae), a new species from Bolivia?, Madrono, vol. 40, pp. 69-74, 1993.

X.  Londono and Zurita, E., ?Two new species of Guadua (Bambusoideae: Guaduinae) from Colombia and Bolivia?, Journal of Botany Research Institute of Texas, vol. 2, pp. 25-34, 2008.