Thamnobryum alopecurum
Fox-tail Feather-moss
Thelypteris palustris
Marsh Fern
Thesium humifusum
Bastard-toadflax
Thlaspi arvense
Field Penny-cress
Thuidium tamariscinum
Common Tamarisk-moss
Thuja plicata
Western Red-cedar
Thymus drucei
Wild Thyme
Thymus pulegioides
Large Garden
Tilia cordata
Small-leaved Lime
Tilia platyphyllos
Large-leaved Lime
Tilia sp.
Lime
Tilia x europaea
Lime
Tofieldia pusilla
Scottish Asphodel
Tolypella glomerata
Clustered Stonewort
Torilis japonica
Upright Hedge-parsley
Torilis nodosa
Knotted Hedge-parsley
Trachycarpus fortunei
Chusan Palm
Tragopogon porrifolius
Salsify
Tragopogon pratensis
Goat's-beard
Trichomanes speciosum
Killarney Fern
Trichophorum germanicum
Deergrass
Trifolium arvense
Hare's-foot Clover
Trifolium aureum
Large Trefoil
Trifolium campestre
Hop Trefoil