Yushania tongziensis (Poaceae, Bambusoideae), a new bamboo species from north Guizhou, China

Yushania tongziensis N.H. Xia, Y.Y. Zhang et G. Xie, a new species of temperate woody bamboo tribe Arundinarieae (Poaceae: Bambusoideae), is described and illustrated from north Guizhou, China. The new species is morphologically similar to Y. panxianensis T.P. Yi et J.J. Shi, but differs in having culm internodes smooth, deciduous culm leaf sheaths, oral setae absent, ligules ca. 1 mm tall (vs. 1.5‒3 mm), pseudopetioles 1‒1.5 mm long (vs. 1 mm) and transverse veins inconspicuous of leaf blade. Based on the morphological features, this new species is assigned to section Brevipaniculatae.