Streptomyces
Streptomycetaceae > Actinomycetales
Strongylocentrotus purpuratus
purple sea urchin — Strongylocentrotidae > Echinoida > Echinoidea
Symbiocladius rhithrogenae
Symphoricarpus albus
Symphyotrichum foliaceum
Asteraceae > Asterales > Magnoliopsida
Syntrophorhabdus aromaticivorans
Syntrophorhabdaceae > Syntrophobacterales > Deltaproteobacteria
Syntrophus aciditrophicus
Syntrophaceae
Syringa X chinensis
Oleaceae > Lamiales > Magnoliopsida
Syringa vulgaris
Lilac — Oleaceae > Lamiales > Magnoliopsida
T. arvense
T. montanum
T. sessile
Tachycineta bicolor
blue bird — Hirundinidae > Passeriformes > Aves
Tachycineta thalassina
Violet-green Swallow — Hirundinidae > Passeriformes > Aves
Taeniatherum caput-medusae
medusahead — Poaceae > Poales > Magnoliopsida
Tamiasciurus
Tanacetum vulgare
tansy — Asteraceae > Asterales > Magnoliopsida
Tapinoma sessile
Formicidae > Hymenoptera > Insecta
Tapinoma spp.
Tarebia granifera
invasive snail —
Thaumarchaeota
Cenarchaeales > Thaumarchaeota
Thermopsis fendleri
Thlapsi caerulescens
Thlaspi
Pennycress — Brassicaceae > Brassicales > Magnoliopsida
Thlaspi caerulescens
Brassicaceae
Thomomys talpoides
northern pocket gophers — Geomyidae > Rodentia > Mammalia
Timema cristinae
stick insect — Timematidae > Phasmida > Insecta
Tipularia discolor
Orchidaceae > Asparagales > Magnoliopsida
Tragopogon dubius
Asteraceae > Asterales > Magnoliopsida
Tramea
dragonfly — Libellulidae > Odonata > Insecta
Trichoptera
Trichoptera > Insecta
Trifolium
clover — Fabaceae > Fabales > Magnoliopsida
Trifolium alpinum
Fabaceae > Fabales > Magnoliopsida
Trifolium dasyphyllum
clover — Fabaceae > Fabales > Magnoliopsida
Trifolium gymnocarpon
clover — Fabaceae > Fabales > Magnoliopsida
Trifolium pretense
clover — Fabaceae
Trifolium repens
White Dutch Clover — Fabaceae > Fabales > Magnoliopsida
Trigona
Apidae > Hymenoptera > Insecta
Trigona ferricauda
Apidae > Hymenoptera > Insecta
Trigona fulviventris
Apidae > Hymenoptera > Insecta
Trioxys angelicae
Tripleurospermum inodorum
invasive chamomile — Asteraceae > Asterales > Magnoliopsida
Trisetum spicatum
Spike triesetum — Poaceae > Poales > Magnoliopsida
Trissolcus cultratus
European parasitoid wasp —