Syncalathium Lipsch. Syncarpha DC. Syncephalum DC. Syncretocarpus S.F.Blake Synedrella Gaertn. Synedrellopsis Hieron. & Kuntze Syneilesis Maxim. Synotis (C.B.Clarke) C.Jeffrey & Y.L.Chen Syntrichopappus A.Gray – Fremont's gold Synurus Iljin Syreitschikovia Pavlov T List of genera is from Plants of the World Online unless otherwise cited. Tagetes L. – marigold Taimingasa (Kitam.) C.Ren & Q.E.Yang Takhtajaniantha Nazarova Talamancalia H.Rob. & Cuatrec. Talamancaster Pruski Tamananthus V.M.Badillo Tamaulipa R.M.King & H.Rob. – boneset Tanacetopsis (Tzvelev) Kovalevsk. Tanacetum L. – tansy, feverfew Taplinia Lander Taraxacum F.H.Wigg. – dandelion Tarchonanthus L. Tarlmounia H.Rob., S.C.Keeley, Skvarla & R.Chan Tehuana Panero & Villaseñor Teixeiranthus R.M.King & H.Rob. Telanthophora H.Rob. & Brettell Telekia Baumg. Telmatophila Mart. ex Baker Tenrhynea Hilliard & B.L.Burtt Tephroseris (Rchb.) Rchb. – fleawort Tessaria Ruiz & Pav. Tetrachyron Schltdl. Tetradymia DC. – horsebrush Tetragonotheca L. – nerveray Tetramolopium Nees Tetraneuris Greene – four-nerve daisy Tetranthus Sw. Tetraperone Urb. Thaminophyllum Harv. Thelesperma Less. – greenthread Thespidium F.Muell. ex Benth. Thespis DC. Thevenotia DC. Thiseltonia Hemsl. Thurovia Rose Thymophylla Lag. – pricklyleaf Thymopsis Benth. Tietkensia P.S.Short Tilesia G.Mey. Tithonia Desf. ex Juss. Toiyabea R.P.Roberts, Urbatsch & Neubig Tolpis Adans. – umbrella milkwort Tomentaurum G.L.Nesom Tonestus A.Nelson – serpentweed Tourneuxia Coss. Townsendia Hook. – Townsend daisy Tracyina S.F.Blake – Indian headdress Tragopogon L. – goat's beard, salsify Traversia Hook.f. Trepadonia H.Rob. Trichanthemis Regel & Schmalh. Trichanthodium Sond. & F.Muell. Trichocline Cass. Trichocoronis A.Gray – bugheal Trichocoryne S.F.Blake Trichogonia (DC.) Gardner Trichogoniopsis R.M.King & H.Rob. Tricholepis DC. Trichoptilium A.Gray Trichospira Kunth Tridactylina Sch.Bip. Tridax L. Trigonopterum Steetz Trigonospermum Less. Trioncinia (F.Muell.) Veldkamp × Tripleurocota Starm. Tripleurospermum Sch.Bip. – mayweed × Tripleurothemis Stace Triplocephalum O.Hoffm. Tripolium Nees – sea aster (?) Triptilion Ruiz & Pav. Triptilodiscus Turcz. Trixis Sw. Troglophyton Hilliard & B.L.Burtt Tuberculocarpus Pruski Tuberostylis Steetz Tugarinovia Iljin Turanecio Hamzaoğlu Turczaninovia DC. Tussilago L. – coltsfoot Tuxtla Villaseñor & Strother Tyleropappus Greenm. Tyrimnus (Cass.) Bosc Tzvelevopyrethrum Kamelin U List of genera is from Plants of the World Online unless otherwise cited. Ugamia Pavlov Uleophytum Hieron. Uniyala H.Rob. & Skvarla Unxia Kunth Urbinella Greenm. Urmenetea Phil. Urolepis (DC.) R.M.King & H.Rob. Urospermum Scop. Urostemon B.Nord. Ursinia Gaertn. V List of genera is from Plants of the World Online unless otherwise cited. Varilla A.Gray Vellereophyton Hilliard & B.L.Burtt Venegasia DC. Verbesina L. – crownbeard Vernonanthura H.Rob. Vernonella Sond. Vernonia Schreb. – ironweed Vernoniastrum H.Rob. Vernoniopsis Dusén Vicinia G.L.Nesom Vickia Roque & G.Sancho Vickifunkia C.Ren, L.Wang, I.D.Illar. & Q.E.Yang Vicoa Cass. Vieraea