| abecední řazení | řazení podle počtu |
  |   |
| třešeň patčí | 1 |
| třešeň pilovitá | 12 |
| třešeň pilovitá prunus serrulata | 3 |
| TŘEŠEŇ PILOVITÁ – Prunus serrulata | 3 |
| třešeň planá | 4 |
| třešeň ptačí | 38 |
| třešeň ptačí plena | 4 |
| třešeň tibetská | 4 |
| třešeň ‘Charles Sargent‘ | 3 |
| třešňovišeň | 4 |
| treyviana | 3 |
| třezalka | 8 |
| třezalka hidcote | 1 |
| třezalka kalíškatá | 2 |
| třezalka rozkladitá | 1 |
| triacanthos | 5 |
| Triadica | 6 |
| Triadica sebifera | 6 |
| trichilia | 4 |
| tricho | 4 |
| Trichosantes | 4 |
| Trichosanthes kirilowii | 1 |
| tricolor | 4 |
| tricuspidata | 4 |
| trifoliata | 5 |
| trikor | 4 |
| trillium | 5 |
| triloba | 5 |
| trinidad | 5 |
| trinity | 4 |
| Tripartita | 5 |
| tripatkovka nachova | 3 |
| triphyllos | 3 |
| triple | 1 |
| Triple Play | 1 |
| Tripleurospermum inodorum | 1 |
| Tripogandra | 4 |
| tripterygium | 5 |
| Tristania conferta | 3 |
| Tristaniopsis | 1 |
| Tristiropsis | 4 |
| tristis | 3 |
| triternata | 4 |
| tritten | 3 |
| triumph | 4 |
| triumphans | 1 |
| triumphator | 4 |
| trnavská | 1 |
| trnka | 8 |
| trnka obecná | 9 |
| trnovec | 6 |
| Trnovník | 15 |
| trnovník akat | 20 |
| Trnovník bílý | 5 |
| TrnovnÍk mexický | 3 |
| trobinia | 4 |
| Trochodendron | 5 |
| Trojan Warrior | 3 |
| trojkřídlec | 3 |
| trojpuk | 10 |
| trojpuk drsný | 3 |
| trojpuk něžný | 1 |
| trol | 4 |
| trolgold | 4 |
| troll | 4 |
| Tropaeolum | 4 |
| Tropfstein | 5 |
| Tropstein | 4 |
| truax | 4 |
| truba | 4 |
| trubač | 6 |
| trubac korenujici | 3 |
| trubač křížený | 4 |
| trubačovité | 4 |
| true blue | 4 |
| truffaut | 3 |
| Truffle | 1 |
| trump | 5 |
| tssuga | 4 |
| tsu | 4 |
| tsuga | 134 |
| Tsuga canadensis | 47 |
| Tsuga canadensis jeddeloh | 3 |
| tsuga canadensis nana gracikis | 3 |
| tsuga canadensis nana gracilis | 3 |
| TSUGA CANADENSIS PENDULA | 5 |
| tsuga canadiensis pendula | 4 |
| Tsuga caroliniana | 6 |
| Tsuga caroliniana Adams Weeping | 4 |
| Tsuga chinensis | 4 |
| tsuga diversifolia | 5 |
| tsuga diversifolia minikin | 3 |
| Tsuga heteropgylla | 4 |
| tsuga heterophyla | 4 |
| Tsuga heterophylla | 13 |
| tsuga kanadensis | 5 |
| Tsuga martensiana | 4 |
| Tsuga mertensiana | 11 |
| tsuga nana gracikis | 3 |
| tsuga pendula | 1 |
| Tsuga s | 4 |
| tsuga seiboldii | 1 |
| Tsuga sieboldii | 6 |
| Tsuga sielboldii | 4 |
| Tsuga st | 4 |
| Tsuga stan | 4 |
| Tsuga standishii | 4 |
| tsuga¨ | 4 |
| tsxus | 4 |
| tubus fruticosus | 4 |
| tucker dwarf | 4 |
| Tuckers Dwarf | 4 |
| tuja | 6 |
| Tuja západná | 4 |
| Tuje | 18 |
| túje západní | 3 |
| Tujopsis | 4 |
| tuka puka | 3 |
| Tulipa | 4 |
| tulipánokvětý | 4 |
| tulipánovník | 6 |
| tulipifera | 3 |
| tumbling | 3 |
| TUNDRA | 4 |
| Tupa | 3 |
| tupela | 7 |
| tupela lesní | 6 |
| Tupelovité | 3 |
| tupolistý | 5 |
| turbinata | 6 |
| turbinatum | 4 |
| turcomanica | 1 |
| tures | 3 |
| turesii | 1 |
| turner | 4 |
| turneri | 5 |
| turpethum | 4 |
| turtle creak | 4 |
| Tušalaj | 4 |
| tusga | 5 |
| tuskarimana | 3 |
| Tvrďák | 4 |
| Tvrdodřev | 5 |
| Txodium distichum | 1 |
| tymián | 4 |
| tymon | 6 |
| Typhlodromus | 4 |
| U | 3 |
| uber | 3 |
| udatna | 7 |
| uercus | 1 |
| uetersen | 4 |
| Ugnadia speciosa | 4 |
| ugni | 11 |
| Ugni molinae | 4 |
| ukon | 4 |
| ula utilis | 4 |
| ula utilis janquemontii | 4 |
| Ulex | 27 |
| Ulex europaeus | 7 |
| Ulex gallii | 3 |
| Ulex minor | 3 |
| uliginosa | 3 |
| ulmace | 4 |
| ulmaceae | 7 |
| ulmifolia | 3 |
| ULMIS | 4 |
| ulmis carpini | 4 |
| ulmues laevis | 4 |
| Ulmus | 311 |
| Ulmus alata | 5 |
| ulmus america | 4 |
| Ulmus americana | 6 |
| Ulmus antarctica | 4 |
| Ulmus aurea | 7 |
| Ulmus berardii | 4 |
| Ulmus campestris | 3 |
| Ulmus campestris latifolia nigricans | 3 |
| Ulmus carpinifolia | 11 |
| Ulmus Clusius | 5 |
| ulmus columela | 4 |
| Ulmus Commelin | 4 |
| Ulmus coryllifolia | 4 |
| ulmus dodoens | 4 |
| Ulmus effusa | 4 |
| ulmus glabr | 5 |
| ulmus glabra | 59 |
| ulmus glabra lutescens | 4 |
| Ulmus glabra Pendula | 4 |
| ulmus hillier | 4 |
| ulmus holandica | 5 |
| Ulmus holandica wredei | 3 |
| Ulmus hollandica | 13 |
| Ulmus hollandica Wredei | 5 |
| Ulmus hybridus | 3 |
| ulmus japonica | 3 |
| ulmus laevis | 46 |
| ulmus laevis colorans | 4 |
| ulmus leavis | 8 |
| ulmus lobel | 5 |
| ulmus major | 4 |
| ulmus minor | 57 |
| ulmus minr | 4 |
| ulmus mminor | 4 |
| Ulmus montana | 3 |
| Ulmus nigra | 4 |
| Ulmus parviflora | 10 |
| ulmus parvifolia | 11 |
| ulmus pendula | 1 |
| Ulmus procera | 15 |
| Ulmus procera tortuosa | 4 |
| ulmus pumila | 36 |
| ulmus pumila celer | 5 |
| Ulmus pumila var. arborea | 3 |
| ulmus rebona | 4 |
| ulmus resista | 3 |
| Ulmus rubra | 4 |
| ulmus scabra | 5 |
| Ulmus scampstoniensis | 4 |
| ulmus siberica | 3 |
| Ulmus sibirica | 4 |
| Ulmus suberosa | 4 |
| Ulmus tiliifolia | 4 |
| Ulmus tortuosa | 5 |
| Ulmus urticifolia | 4 |
| ulmus wredei | 7 |
| Ulmus x | 4 |
| ulmus x elegantissima | 1 |
| ulmus x holandica | 3 |
| ulmus x hollandica | 11 |
| ulmus x vim. aurea | 4 |
| Ulmus xhollandica | 4 |
| Ulmus ’Clusius’ | 4 |
| ulmus¨ | 3 |
| ulnus | 4 |
| ulnus pumila | 3 |
| ulrike | 4 |
| Ultimate yellow | 1 |
| ulus | 3 |
| umbellata | 4 |
| Umbellatus | 3 |
| Umbellularia californica | 3 |
| umbraculifera | 7 |
| umbrella | 4 |
| umienko | 4 |
| umineko | 6 |
| umluv major | 4 |
| umluv minor | 4 |
| Uncarina | 1 |
| uncinata | 9 |
| uncle | 4 |
| uncle fog | 4 |
| uncle fogy | 4 |
| undulatum | 4 |
| UNDULIFOLIA | 3 |
| Unelma | 3 |
| Ungnadia speciosa | 4 |
| unifolia | 9 |
| uniperus sabina | 4 |
| University | 1 |
| úponkami - listové úponky | 4 |
| upright | 4 |
| UPRIGHT YELLOW | 3 |
| Upton Pyne | 1 |
| Uraria | 4 |
| Urbana | 1 |
| Urera | 1 |
| uringgea suffruticosa | 4 |
| Ursine | 3 |
| urticifolia | 4 |
| UTILE | 3 |
| Utilis | 4 |
| uva | 4 |
| uva-crispa | 6 |
| Uvaria | 1 |
| V | 5 |
| vaccinianum | 4 |
| vaccinium | 69 |
| Vaccinium alaskaense | 4 |
| vaccinium cor | 4 |
| vaccinium corymbosum | 15 |
| Vaccinium cylindraceum | 3 |
| Vaccinium erythrocarpum | 4 |
| Vaccinium intermedia | 3 |
| vaccinium macrocarpon | 4 |
| Vaccinium microcarpum | 4 |
| Vaccinium myrtillus | 5 |
| Vaccinium oxycoccos | 4 |
| Vaccinium oxycoccоs | 4 |
| Vaccinium uliginosum | 4 |
| vaccinium vitis | 4 |
| vaccinium vitis idaea | 3 |
| Vaccinium vitis-idaea | 5 |
| Vaccinium vitis–idaea | 4 |
| vaccinum | 5 |
| vaccinum corymbosum | 3 |
| vaccnium | 4 |
| Vachellia | 6 |
| Vachellia eburnea | 4 |
| vachellia erioloba | 5 |
| | |
