Fremont's-gold

Syntrichopappus fremontii

Lemmon's Syntrichopappus

Syntrichopappus lemmonii

Vortriede's Spineflower

Systenotheca vortriedei

Dune Tansy

Tanacetum bipinnatum

California Dandelion

Taraxacum californicum

Horned Dandelion

Taraxacum ceratophorum

Sun Cup

Taraxia ovata

Diffuseflower Evening Primrose

Taraxia subacaulis

Tansyleaf Evening Primrose

Taraxia tanacetifolia

Southern Tauschia

Tauschia arguta

Glaucous Tauschia

Tauschia glauca

Tauschia

Tauschia hartwegii

Howell's Tauschia

Tauschia howellii

Kellogg's Umbrellawort

Tauschia kelloggii

Parish's Umbrellawort

Tauschia parishii

Pacific Yew

Taxus brevifolia

Bigflower Tellima

Tellima grandiflora

Parry's Tetracoccus

Tetracoccus dioicus

Hall's Tetracoccus

Tetracoccus hallii

Holly-leaved Tetracoccus

Tetracoccus ilicifolius

Striped Horsebrush

Tetradymia argyraea

Cotton Catclaw

Tetradymia axillaris

Longspine Horsebrush

Tetradymia axillaris var. axillaris

Longspine Horsebrush

Tetradymia axillaris var. longispina

Spineless Horsebrush

Tetradymia canescens

Hairy Horsebrush

Tetradymia comosa

Littleleaf Horsebrush

Tetradymia glabrata

Shortspine Horsebrush

Tetradymia spinosa

Mojave Cottonthorn

Tetradymia stenolepis

Dune Horsebrush

Tetradymia tetrameres

Stemless Four Nerve Daisy

Tetraneuris acaulis

Tetraneuris acaulis var. arizonica

Hill Sun Cup

Tetrapteron graciliflorum

Palmer Evening Primrose

Tetrapteron palmeri

Canada Germander

Teucrium canadense

Small Coastal Germander

Teucrium cubense

Dwarf Germander

Teucrium cubense ssp. depressum

Desert Germander

Teucrium glandulosum

Arctic Meadow-rue

Thalictrum alpinum

Meadow Rue

Thalictrum fendleri

Fendler's Meadow Rue

Thalictrum fendleri var. fendleri

Torrey's Meadow Rue

Thalictrum fendleri var. polycarpum

Western Meadow Rue

Thalictrum occidentale

Fewflower Meadow-rue

Thalictrum sparsiflorum

Turpentinebroom

Thamnosma montana

Short-podded Thelypodium

Thelypodium brachycarpum

Crisped Thelypody

Thelypodium crispum

Nodding Thelypody

Thelypodium flexuosum

Howell's Thelypody

Thelypodium howellii

Howell's Thelypodium

Thelypodium howellii ssp. howellii

Entireleaved Thelypody

Thelypodium integrifolium

Entireleaved Thelypody

Thelypodium integrifolium ssp. affine

Foxtail Thelypodium

Thelypodium integrifolium ssp. complanatum

Cutleaf Thelypody

Thelypodium laciniatum

Many-flowered Thelypodium

Thelypodium milleflorum

Slender-petaled Thelypodium

Thelypodium stenopetalum

Nevada Marsh Fern

Thelypteris nevadensis

Showy Maiden Fern

Thelypteris puberula

Sonoran Maiden Fern

Thelypteris puberula var. sonorensis

California Goldenbanner

Thermopsis californica