Trifolium repens Trifolium repens 'Atropurpureum'
Trifolium repens 'Wheatfen' Triglochin maritima
Trillium chloropetalum 'Rubrum' Trillium cuneatum
Trillium erectum Trillium grandiflorum
Trillium lancifolium Trillium luteum
Trillium nivale Trillium pusillum
Trillium stamineum Trillium sulcatum
Trillium viride Tripsacum dactyloides
Tripsacum floridana Trollius chinensis
Trollius x cultorum 'Golden Queen' Trollius x cultorum 'Miss Mary Russel'
Trollius europaeus Tropaeolum majus
Tropaeolum majus 'Alaska' Tropaeolum majus 'Jewel Lavender'
Tropaeolum majus 'Mahogany Jewel' Tropaeolum majus 'Variegata'
Tropaeolum majus 'Whirlybird' Tropaeolum majus 'Whirlybird Cream'
Tropaeolum peregrinum Tropaeolum tricolorum
Tulbaghia violacea Tulbaghia violacea 'Silver Lace'
Tulbaghia violacea 'Variegata' Tulipa x
Tulipa x 'Ballade' Tulipa x 'Bonanza'
Tulipa x 'Calgary' Tulipa x 'Dillenburg'
Tulipa x 'Early Harvest' Tulipa x 'Elegant Lady'
Tulipa x 'Fringed Elegance' Tulipa x 'Johann Strauss'
Tulipa x 'Mariette' Tulipa x 'Maytime'
Tulipa x 'New Design' Tulipa x 'Oscar'
Tulipa x 'Queen of Night' Tulipa x 'Spring Green'
Tulipa x 'Texas Fire' Tulipa 'Angelique'
Tulipa 'Blue Parrot' Tulipa 'Fire Queen'
Tulipa 'Flair' Tulipa 'Gavota'
Tulipa 'La Belle Epoque' Tulipa 'Rembrandt Mix'
Tulipa 'Scarlet Baby' Tulipa 'White Bouquet'
Tulipa acuminata Tulipa bakeri 'Lilac Wonder'
Tulipa batalinii 'Bright Gem' Tulipa batalinii 'Little Gem'
Tulipa batalinii 'Red Jewel' Tulipa clusiana
Tulipa clusiana var. chrysantha Tulipa fosteriana 'Zombie'
Tulipa greigii 'Red Reflexion' Tulipa hageri 'Little Beauty'
Tulipa kaufmanniana Tulipa kurdica
Tulipa linifolia Tulipa pulchella 'Eastern Star'
Tulipa pulchella 'Violacea' Tulipa tarda
Tulipa turkestanica Tulipa urumiensis
Tulipa whittallii Turnera subulata
Turnera ulmifolia Tussilago farfara
Tweedia caerulea Typha angustifolia
Typha japonica 'Variegata' Typha latifolia
Typha laxmanni Typha minima
Uebelmannia pectinifera Uncarina grandidieri
Uniola paniculata Utricularia vulgaris
Uvularia grandiflora Uvularia sessilifolia
Valeriana officinalis Vancouveria hexandra
Vanda spp. Veltheimia bracteata
Veltheimia bracteata 'Rosalba' Veltheimia capensis
Veratrum nigrum