Canada

Ajuga

Ajuga reptans

Alder

Alnus glutinosa

Alexanders

Angelica atropurpurea

Allegheny Serviceberry

Amelanchier arborea

Common Silver Hairgrass

Aira caryophyllea

All Species in Canada

Spider

Trochosa ruricola

Spider

Urozelotes rusticus

Spiked speedwell

Veronica spicata

Vulnerable

spiked water-milfoil

Myriophyllum spicatum

Spinach

Spinacia oleracea

Jointed Rush

Juncus nodosus

Spiny Cocklebur

Xanthium spinosum

Spiny naiad

Najas marina

spiral tasselweed

Ruppia cirrhosa

Extinct

Spitting Spider

Scytodes thoracica

Splitlip hempnettle

Galeopsis bifida

Annual pearlwort

Sagina apetala

Annual ryegrass

Lolium multiflorum

Annual Scorpion-vetch

Coronilla scorpioides

Annual vernalgrass

Anthoxanthum aristatum

Spotted henbit

Lamium maculatum

Annual Water-Starwort

Callitriche hermaphroditica

Annual Willowherb

Epilobium brachycarpum

Annual Yellow-woundwort

Stachys annua

Apple Of Sodom

Solanum carolinense

Appressed Bog Clubmoss

Lycopodiella appressa

Apricot

Prunus armeniaca

Asian rapa whelk

Rapana venosa

Arctic aster

Eurybia sibirica

Critically Endangered

Spotted Knapweed

Centaurea stoebe

Spotted ladysthumb

Persicaria maculosa

arctic pyrola

Pyrola grandiflora

arnica

Arnica latifolia

Arrow-Leaved Lettuce

Lactuca canadensis

Ash-Leaved Spiraea

Sorbaria sorbifolia

Dotted Firefly

Lucidota punctata

Asian water-milfoil

Myriophyllum ussuriense

Asiatic dock

Rumex confertus

Ottoe Skipper

Hesperia ottoe

White henbane

Hyoscyamus albus

Parasitoid wasp

Ixodiphagus hookeri

Bayberry Willow

Salix myricoides

bear sedge

Carex ursina

Beech Leaf Miner

Orchestes fagi

Bellard's bog sedge

Carex myosuroides

Spreading alkali grass

Puccinellia distans

Tenthredid Wasp

Eutomostethus ephippium

Spreading Cotoneaster

Cotoneaster divaricatus

spreading currant

Ribes laxiflorum

Spreading hedgeparsley

Torilis arvensis

Spreading wallflower

Erysimum repandum

Spring Blackclock

Pterostichus vernalis

spring cinquefoil

Potentilla verna

spring-sedge

Carex caryophyllea

spring speedwell

Veronica verna

Spring vetch

Vicia lathyroides

spring water-starwort

Callitriche palustris

Spruce Seed Moth

Cydia strobilella

spurge hawk-moth

Hyles euphorbiae

Common Jewelweed

Impatiens capensis

square-stemmed willowherb

Epilobium tetragonum

rosy gilia

Gilia sinuata

Extinct

Staph beetle

Proteinus brachypterus

Levant blackneck moth

Tathorhynchus exsiccata