The following names have already been used within the genus and therefore cannot be re-used. This list is not in strict alphabetical order but is sorted including spaces, full stops etc. in row order. To look at other names click on the appropriate first letter.
| T. Moore | Talisker | Tall White | Tallboy |
| Tallisker | Tarmachan | Tartan Turret | Tenella |
| Tennuis | Tenue | Tenuis | Tenuis Alba |
| Terrick's Orange | Tetragona | The Molecule | The Pygmy |
| Theresa | Think II | Threipmuir | Tib |
| Tijden's Copper | Tino | Tiny Tim | Tiptree |
| Tom Thumb | Tomentosa | Tomentosa Alba | Tomentosa Pallida |
| Tomentose | Tom's Fancy | Torlosa | Torogay |
| Torrisdale Bay | Torulosa | Tremans | Tresco |
| Tricolor | Tricolor, Smith's Variety | Tricoloriflora | Tricolorifolia |
| Tricolorifolia (Smith's Variety) | Trink Hill | Trinket | Trinklet |
| True Minty | Trypnoides | Trysull | Tuke's Lime |
| Twilight | Tyndrum | Type Lohse | Type Loose |
© The Heather Society, 17 September 2004