United States

águia-real

Aquila chrysaetos

ajuga

Ajuga reptans

Endangered

arabidópsis

Arabidopsis thaliana

arara-canindé

Ara ararauna

axenuz

Agrostemma githago

Critically Endangered

bafureira

Ricinus communis

bardana

Arctium lappa

All Species in United States

northern fowl mite

Ornithonyssus sylviarum

Small dung fly

Coproica acutangula

Sow small dung beetle

Trichonotulus scrofa

Vulnerable

Angerman's peat moss

Sphagnum angermanicum

Angled Purple Loosestrife

Lythrum alatum

Angleton bluestem

Dichanthium aristatum

Spanish cherry

Mimusops elengi

Spanish lime

Melicoccus bijugatus

Spider beetle

Gibbium psylloides

Sparkling Signal-Moss

Hageniella micans

Endangered

Sparse-Flowered Sedge

Carex tenuiflora

Spathulate Botrychium

Botrychium spathulatum

Spatterdock Darner

Rhionaeschna mutata

Frosted Comma Lichen

Chrysothrix caesia

speckled rustwort

Marsupella sphacelata

Spider brake

Pteris multifida

Lamarck's bedstraw

Galium divaricatum

Spiderwort

Tradescantia virginiana

Sphaeropsis blight

Sphaeropsis sapinea

Sphagnum Brownie

Hypholoma elongatum

Sphagnum Sprite

Nehalennia gracilis

Spider

Trochosa ruricola

Aniseed Cockleshell

Lentinellus cochleatus

Spider

Urozelotes rusticus

Spiderwisp

Gynandropsis gynandra

Marmalade bush

Streptosolen jamesonii

Aniseed Funnel

Clitocybe odora

Spiked Shieldbug

Picromerus bidens

Spiked speedwell

Veronica spicata

Vulnerable

spiked water-milfoil

Myriophyllum spicatum

Spiked Wood-Rush

Luzula spicata

Desert ragwort

Senecio eremophilus

spinach

Eulithis mellinata

Spindle Ermine

Yponomeuta cagnagellus

Spindle Shank

Gymnopus fusipes

Jointed Rush

Juncus nodosus

Spinose Thyme-Moss

Mnium spinosum

spiny hands

Charybdis hellerii

Spiny Baskettail

Epitheca spinigera

Spiny spiderflower

Tarenaya spinosa

Spiny restharrow

Ononis spinosa

Endangered

spiral extinguisher moss

Encalypta procera

Spiral Extinguisher-Moss

Encalypta streptocarpa

Vulnerable

spiral ginger

Costus pulverulentus

spirea aphid

Aphis spiraecola

Spitting Spider

Scytodes thoracica

Split Porecrust

Schizopora paradoxa

Splitlip hempnettle

Galeopsis bifida

Splitpea Shanklet

Collybia cookei

Asian needle ant

Pachycondyla chinensis

Umber Dot Lichen

Scoliciosporum umbrinum

Annual pearlwort

Sagina apetala

Annual Scorpion-vetch

Coronilla scorpioides

Annual vernalgrass

Anthoxanthum aristatum

Elegant Spreadwing

Lestes inaequalis

Annual Water-Starwort

Callitriche hermaphroditica

Annual Wild Rice

Zizania aquatica

Annual Willowherb

Epilobium brachycarpum

Mite

Typhlodromus bakeri

Annual Yellow-woundwort

Stachys annua