T

Tannin [ Botany - Biochemistry ]

Tap root  [ Botany ]

Tap water [ Horticulture ]

Taxon (Plural taxa)  [ Taxonomy ]

Taxonomic groups (Syn: Taxonomic levels) [ Taxonomy ]

Taxonomic key [ Taxonomy ]

Taxonomic synonym[ Taxonomy ]

Taxonomist [ Taxonomy ]

Taxonomy [ Biology ]

Technical term [ Biology ]

Temperature [ Climatology - Physiology - Ecology ]

Temperature fluctuation [ Climatology ]

Tender [ Botany ]

Tendril [ Botany ]

Tepal [ Botany ]

Terete [ Botany ]

Terminal  [ Botany ]

Terminal bud [ Botany ]

Terminal petiolule [ Botany ]

Terminal taxon [ Taxonomy - Cladistic ]

Terraces [ Horticulture  ]

Terracotta (Clay) pot [ Horticulture  ]

Terrain [ Pedology ]

Testa [ Botany ]

Tetraploid [ Biology - Genetics ]

Thaw [ Meteorology - Climatology ]

Thermoregulation [ Biology - Physiology ]

Thigmotropic stamens [ Botany ]

Thorn - Thorny [ Botany ]

Threat [ Biology - Ecology ]

Threatened species [ Conservation status - Ecology ]

Throat [ Botany ]

Throat circle [ Botany ]

Throat stamens [ Botany- Echinopsis morphology]

Tiller [ Botany ]

Timber [ Botany - Agronomy]

Tissue [ Biology ]

Tissue culture [  Biology - Horticulture ]

Tolerance [ Botany - Biology ]

Tomentum - Tomentose [ Botany ]

Tooth (Plural Teeth)  [ Botany ]

Toothed [ Botany ]

Topotype [ Biology - Taxonomy ]

Top-Shaped [ Botany ]

Totipotency [ Biology ]

Toxic [ Biology - Chemistry - Pathology ]

Toxin [ Biology ]

Trace elements [ Botany ]

Trachea [ Botany ]

Tracheary elements [ Botany ]

Tracheid [ Botany ]

Tracheophytes [ Botany ]

Trait [ Biology - Genetics - Morphology ]

Trailing [ Botany ]

Transition [ Biology ]

Transators [ Botany ]

Translucent [ Botany ]

Transmissible - Transmission [ Botany ]

Transparent [ Botany ]

Transpiration [ Botany ]

Transplant [ Horticulture ]

Transport [ Botany - Physiology ]

Transversal section [ Botany ]

Treatment [ Agronomy - Horticulture ]

Tree [ Botany ]

Tree diagram [ Taxonomy ]

Triangular [ Botany ]

Tribe [ Taxonomy ]

Trichomes [ Botany ]

Trifoliate (Leaf) [ Botany ]

Trifoliate pinnately (Leaf) [ Botany ]

Tropic - Tropical [ Climatology - Ecology - Biogeography ]

True leaf [ Botany ]

Truebred -Truebreeding [ Botany - Genetics ]

Truncate [ Botany ]

Trunk [ Botany ]

Trunk less [ Botany ]

Tube (Floral tube) [ Botany ]

Tuber - Tuberous [ Botany ]

Tubercle [ Botany ]

Tuberculate - Tubercular [ Botany ]

Tuberoid [ Botany ]

Tuberous [ Botany ]

Tuberous root system [ Botany ]

Tubular [ Botany ]

Tufted [ Botany  ]

Tumour (or Tumor) [ Biology - Phytopathology ]

Tunica (Tunic) [ Botany ]

Turbinate [ Botany ]

Turgor [ Botany ]

Twigs [ Botany ]

Twining [ Botany ]

Type [ Taxonomy ]

Type designation [ Taxonomy ]

Type genus [ Taxonomy ]

Type locality [ Taxonomy ]

Type selection [ Taxonomy ]

Type species [ Taxonomy ]

Type specimen [ Taxonomy ]