Tetrapogon cenchriformis (A. Rich.) W.D. Clayton
Tetrapogon roxburghiana (Schult.) Peterson
Tetrapogon spathaceus (Hochst. ex Steud.) Hack. ex Dur. & Schinz – synonym of Tetrapogon cenchriformis (A. Rich.) W.D. Clayton
Tetrapogon tenellus (J.Koenig ex Roxb.) Chiov.
Thelepogon elegans Roem. & Schult.
Themeda australis (R. Br.) Stapf – synonym of Themeda triandra Forssk.
Themeda caudata (Nees ex Hook. & Arn.) A. Camus
Themeda effusa Bal. – synonym of Hyparrhenia familiaris (Steud.) Stapf
Themeda triandra punctata (A. Rich.) Stapf – synonym of Themeda triandra Forssk.
Themeda villosa (Lam.) A. Camus
Thyridachne tisserantii C.E. Hubbard
Thysanolaena latifolia (Roxb. ex Hornem.) Honda
Thysanolaena maxima (Roxb. ex Hornem.) Honda – synonym of Thysanolaena latifolia (Roxb. ex Hornem.) Honda
Trachynia distachya (Linn.) Link – synonym of Brachypodium distachyon (Linn.) P. Beauv.
Trachypogon chevalieri (Stapf) Jacq.-Fél.
Trachypogon ledermannii Pilg. – synonym of Trachypogon chevalieri (Stapf) Jacq.-Fél.
Trachypogon plumosus (Willd.) Nees – synonym of Trachypogon spicatus (Linn. f.) Kuntze
Trachypogon rufa Nees – basionym of Hyparrhenia rufa (Nees) Stapf
Trachypogon spicatus (Linn. f.) Kuntze
Trachypogon thollonii (Franch.) Stapf – synonym of Trachypogon spicatus (Linn. f.) Kuntze
Tragus brevicaulis Boiss. – synonym of Tragus racemosus (Linn.) All.
Tragus racemosus erectus Mutel – synonym of Tragus berteronianus Schult.
Triachyrum cordofanum Hochst. ex Steud. – basionym of Sporobolus cordofanus (Hochst. ex Steud.) Coss.
Trichachne insularis (Linn.) Nees – synonym of Digitaria insularis (Linn.) Eckman
Trichanthecium filifolium (Clayton) Zuloaga & Morrone
Trichanthecium glaucocladum (C.E. Hubb.) Zuloaga & Morrone
Trichanthecium gracilicaule (Rendle) Zuloaga & Morrone
Trichanthecium mueense (Vanderyst) Zuloga & Morrone
Trichanthecium nervatum (Franch.) Zuloaga & Morrone
Trichanthecium parvifolium (Lam.) Zuloaga & Morrone
Trichanthecium praealtum (Sw.) Zuloaga & Morrone
Trichanthecium strictissimum (Afz. ex Sw.) Zuloaga & Morrone
Trichanthecium tenellum (Lam.) Zuloaga & Morrone
Tricholaena sphacelata Benth. – synonym of Melinis repens (Willd.) Zizka
Trichoneura mollis (Kunth) Ekman
Trichopteryx annua – synonym of Loudetia annua (Stapf) Hubbard
Trichopteryx arundinaceae – synonym of Loudetia arundinacea (A. Rich.) Steud.
Trichopteryx elegantula (Hook.f.) Stapf
Trichopteryx flavida – synonym of Loudetia flavida (Stapf) C.E. Hubb.
Trichopteryx glabrata – synonym of Loudetiopsis glabrata (K. Schum.) Conert
Trichopteryx hordeiformis – synonym of Loudetia hordeiformis (Stapf) C.E. Hubb.
Trichopteryx kagerensis – synonym of Loudetia kagerensis (K. Schum.) C.E. Hubb.
Trichopteryx kerstingii – synonym of Loudetiopsis kerstingii (Pilger) Conert
Trichopteryx marungensis Chiov.
Trichopteryx phragmitoides – synonym of Loudetia phragmitoides (Peter) C.E. hubb.
Trichopteryx togoensis – synonym of Loudetia togoensis (Pilger) C.E. Hubb.
Trigonochloa uniflora (Hochst. ex A. Rich.) Peterson & Snow
Triodia mollis (Kunth) Dur. & Schinz – synonym of Trichoneura mollis (Kunth) Ekman
Tripogon africanus (Coss. & Durieu) H. Scholz & P. König
Tripogon leptophyllus (A. Rich.) Cufod.
Tripogon minimus (A. Rich.) Hochst. ex Steud.
Tripogon multiflorus Miré & H. Gillet
Tripogon tibesticus Miré, H.Gillet & Quézel – synonym of Tripogon multiflorus Miré & H. Gillet
Tripsacum guatemalensis Chitwood & Berger – synonym of Tripsacum andersonii Gray
Triraphis glomerata Camus – synonym of Triraphis pumilio R. Br.
Triraphis nana (Nees) Hack. – synonym of Triraphis pumilio R. Br.
Triseta pumila fuscescens Pomel – synonym of Rostraria pumila (Desf.) Tevelev
Trisetopsis elongata (Hochst. ex A. Rich.) Wölk & Röser
Trisetopsis mannii (Pilg.) Wölk & Röser
Trisetopsis umbrosa (Hochst. ex Steud.) Röser & Wölk
Trisetum longiaristum A. Rich. – basionym of Koordersiochloa longiarista (A. Rich.) Veldkamp
Trisetum rohlfsii Achsers. – basionym of Rostraria rohlfsii (Achsers.) Holub
Trisetum umbrosum Hochst. ex Steud. – basionym of Trisetopsis umbrosa (Hochst. ex Steud.) Röser & Wölk
Tristachya chrysothrix – synonym of Loudetiopsis chrysothrix (Nees) Conert
Tristachya fulva – synonym of Loudetiopsis chrysothrix (Nees) Conert
Tristachya gigantea Stapf – synonym of Tristachya superba (De Not.) Schweinf. & Aschers.
Tristachya longispiculata C.E. Hubb. – synonym of Tristachya nodiglumis K. Schum.
Tristachya nodiglumis K. Schum.
Tristachya scaëttae – synonym of Loudetiopsis scaettae (A. Camus) Clayton
Tristachya simplex – synonym of Loudetia simplex (Nees) C.E. Hubb.
Tristachya superba (De Not.) Schweinf. & Aschers.
Tristachya welwitschii Rendle – synonym of Tristachya nodiglumis K. Schum.