United States

Agrimony

Agrimonia eupatoria

Ajuga

Ajuga reptans

Endangered

Alder

Alnus glutinosa

Alder leaf beetle

Agelastica alni

Alder Spittlebug

Aphrophora alni

All Species in United States

Smooth Rock Tripe

Umbilicaria mammulata

Smooth Saw-Grass

Cladium mariscoides

Smooth Shadow Lichen

Phaeophyscia ciliata

Data Deficient

Smooth-Sheathed Fox Sedge

Carex laevivaginata

Smooth-Stalk Feather-Moss

Brachythecium salebrosum

Smooth Stonewort

Nitella flexilis

Smooth Winterberry

Ilex laevigata

Smooth yellow vetch

Vicia lutea

smooth yellow violet

Viola eriocarpa

Smut fungus

Ustilago esculenta

Smut grass

Sporobolus indicus

Snag Pin Lichen

Mycocalicium subtile

Snail

Cochlodina bidens

Snail

Xerotricha conspurcata

Snail

Lamellidea oblonga

Snail flower

Sigmoidotropis speciosa

Snail medick

Medicago scutellata

Snail-Seed Pondweed

Potamogeton bicupulatus

Snakegourd

Trichosanthes cucumerina

snake millepede

Blaniulus guttulatus

snake's head coralline

Aetea anguina

Snakeskin Grisette

Amanita ceciliae

Snake tick

Amblyomma latum

Snaketongue Truffleclub

Tolypocladium ophioglossoides

Sneaky Elf

Pyropyga decipiens

Sneezeweed

Achillea ptarmica

Snout mite

Spinibdella cronini

Snout mite

Cyta latirostris

Snout mite

Bdellodes meridionalis

Snow-Bed Iceland Lichen

Cetrariella delisei

Snow Bunting

Plectrophenax nivalis

Snowbush

Breynia disticha

Snow Dot Lichen

Biatora vernalis

Snowdrop Anemone

Anemone sylvestris

Snow Fungus

Tremella fuciformis

Snow in summer

Cerastium tomentosum

Snow-in-summer

Cerastium biebersteinii

Snow Lichen

Stereocaulon glaucescens

Snowpeaks raspberry

Rubus niveus

snowshoe hare

Lepus americanus

Snowy Disco

Lachnum virgineum

Snowy Egret

Egretta thula

Snowy Inkcap

Coprinopsis nivea

Snowy Owl

Bubo scandiacus

Critically Endangered

Snowy Waxcap

Cuphophyllus virgineus

Soapy Trich

Tricholoma saponaceum

Society garlic

Tulbaghia violacea

Soft Bracket

Leptoporus mollis

Soft brown scale

Coccus hesperidum

Soft butterfly pea

Centrosema molle

Soft elephantsfoot

Elephantopus mollis

Soft Puffball

Lycoperdon molle

Soft scale

Physokermes piceae

Softseed wild petunia

Ruellia simplex

Data Deficient

soft shield-fern

Polystichum setiferum

Soft-Tuft Panic Grass

Dichanthelium laxiflorum

Soldier fly

Sargus cuprarius

Soldier fly

Microchrysa flavicornis

Soldier fly

Chloromyia formosa

Soldier's orchid

Zeuxine strateumatica