Phylogenetic placement of Puelia and Guaduella, two broad-leaved African grass genera traditionally classified as bamboos, is inferred from analysis of ndhF, rbcL, and PHYB sequence data. Puelia and Guaduella are supported as sister genera, and the Puelia/Guaduella clade is resolved as an early diverging branch within the Poaceae and sister to the BEP PACC clades, which include the bulk of the family. The new grass subfamily Puelioideae is described to accommodate the Puelia/Guaduella clade.
Communicating Editor: Jerrold I. Davis