Gentianella viridiflora (Gentianaceae, Gentianeae, Swertiinae), here described and illustrated, is a new species from the Cordillera Vilcabamba, southern Peru. Its yellowish-green corolla distinguishes it from other South American species of the genus that share a similar set of morphological features. The new species is known only from the type locality where it occurs in grazed areas next to Polylepis woodland.</jats:p
