Culex quinquefasciatus
Culicidae > Diptera > Insecta
Culex tarsalis
Culicidae > Diptera > Insecta
Culiseta alaskaensis
Culicidae > Diptera > Insecta
Culiseta impatiens
Culicidae > Diptera > Insecta
Culiseta incidens
Culicidae > Diptera > Insecta
Culiseta inornata
Culicidae > Diptera > Insecta
Cyanobacteriota
cyanobacteria — Vampirovibrionophyceae
Cymbella
Cymbellaceae > Cymbellales > Bacillariophyceae
Cynigmula
Cynomys ludovicianus
black-tailed prairie dogs — Sciuridae > Rodentia > Mammalia
Cytisus scoparius
Fabaceae > Fabales > Magnoliopsida
D. barbeyi
D. incana
DNA
deoxyribonucleic acid —
Dactylorhiza incarnata
Orchidaceae > Asparagales > Magnoliopsida
Dalbergia sissoo
Fabaceae > Fabales > Magnoliopsida
Datura wrightii
Solanaceae > Solanales > Magnoliopsida
Deltaproteobacteria
Syntrophobacterales > Deltaproteobacteria
Descurainia incana
Brassicaceae > Brassicales > Magnoliopsida
Descurainia sophia
flixweed —
Descurainia sp.
Desulfarculus baarsii
Desulfarculaceae > Desulfarculales > Deltaproteobacteria
Desulfobacca acetoxidans
Syntrophaceae > Syntrophobacterales > Deltaproteobacteria
Desulfuromonas sp.
Dialasma sp.
Dianthidium heterulkei
Megachilidae > Hymenoptera > Insecta
Dibunophyllum sp.
Dieunomia
Halictidae > Hymenoptera > Insecta
Diphragmaceras sp.
Dipodomys ingens
giant kangaroo rat —
Dolania americana
mayfly — Behningiidae > Ephemeroptera > Insecta
Draba
Brassicaceae > Brassicales > Magnoliopsida
Draba aurea
Brassicaceae > Brassicales > Magnoliopsida
Draba incana
Brassicaceae > Brassicales > Magnoliopsida
Draba japonica
Brassicaceae
Draba spectabilis
Drepanosiphum platanoidis
Aphididae
Drosophila melanogaster
Drosophilidae > Diptera > Insecta
Drosophila virilis
Drosophilidae > Diptera > Insecta
Dryas
Rosaceae > Rosales > Magnoliopsida
Dytiscus
diving beetle larva — Dytiscidae > Coleoptera > Insecta
E. umbellatum
Ecclisomyia
Limnephilidae > Trichoptera > Insecta
Eichhornia crassipes
water hyacinth —
Eimeria spp.
Elymus
Poaceae > Poales > Magnoliopsida
Elymus glaucus Buckley
Elymus repens
quackgrass — Poaceae > Poales > Magnoliopsida
Elymus trachycaulus
Slender wheatgrass — Poaceae > Poales > Magnoliopsida
Empidonax traillii
Willow Flycatcher — Tyrannidae > Passeriformes > Aves