Abstract: Affinis T．filiformi Nees ex Steud. Sed laminis supra inter nervos praesertim basi appressis pilis usque ad 10 mm longis; spicis brevioribus,3.5-10 cm longis;spiculis sine bracteolis sub glumis; glumis apice integris acuminatis;lemmatibus brevioribus,tantum tantum 2.5 mm longis，aristis mediis pluries valde reflexis, callo pilisad 0.8 mm longis；paleis lemmatibus  leviter breviorbus；stamine 1，anthera  ad 1.2 mm longa differt.

Key words: Tripogn