| Abbreviation | Definition |
|---|---|
| SWAT | Smelly White Azure Tulips |
| SWAT | Student Weekend Arborist Team |
| SYP | Southern Yellow Pine |
| T | Tallgrass |
| TA | Training Animals |
| TAN | Tree Augmented Naive |
| TBG | Toledo Botanical Garden |
| TBG | Tucson Botanical Gardens |
| TBO | Tree Borne Oilseeds |
| TBS | Tropical Broadleaf Seasonal |
| TEV | Tobacco Etch Virus |
| TG | Tree Granule |
| TGIF | Turf Grass Information File |
| TGN | The Green Notebook |
| TGR | Tree Growth Regulator |
| THV | Terrestrial Herbaceous Vegetation |
| TMV | Tobacco Mosaic Virus |
| TOPSS | The Odd Plant Show Sale |
| TOT | Type Of Tree |
| TP | Tender Perennial |