Canada

Ajuga

Ajuga reptans

Endangered

Alder

Alnus glutinosa

Alexanders

Angelica atropurpurea

Allegheny Serviceberry

Amelanchier arborea

Common Silver Hairgrass

Aira caryophyllea

Endangered

All Species in Canada

Six-Spotted Orbweaver

Araniella displicata

American Slough Grass

Beckmannia syzigachne

big-sheathed pondweed

Stuckenia vaginata

American Spurge

Euphorbia corollata

skunk Jacob's-ladder

Polemonium viscosum

American Starflower

Lysimachia borealis

Slender amaranth

Amaranthus viridis

Hydroid

Maeotias marginata

Couchgrass

Elymus repens

Coulter'S Willow

Salix sitchensis

slenderbeak sedge

Carex athrostachya

slender beardtongue

Penstemon gracilis

Luna Moth

Actias luna

Tiny feather-winged beetle

Ptenidium pusillum

Slender Bristle-moss

Orthotrichum tenellum

Slender Club-rush

Isolepis cernua

Slender Cottonweed

Froelichia gracilis

slender draba

Draba albertina

Daghestan sweet-clover

Melilotus suaveolens

slender woolly-marbles

Psilocarphus tenellus

Slender hairgrass

Deschampsia elongata

Slender Parsley-Piert

Aphanes australis

Critically Endangered

Amur corktree

Phellodendron amurense

Slender Russian-Thistle

Salsola collina

Slender-Stemmed Panicgrass

Dichanthelium implicatum

slender St. John's-wort

Hypericum pulchrum

slick-seed fuzzy-bean

Strophostyles leiosperma

Slender Water-Milfoil

Myriophyllum tenellum

Slimleaf Goosefoot

Chenopodium desiccatum

Drummond's rush

Juncus drummondii

Small Festooned Roller

Ancylis diminutana

small-flowered draba

Draba micropetala

small-flowered grass-of-Parnassus

Parnassia parviflora

small-flowered willowherb

Epilobium parviflorum

Smallhead clover

Trifolium microcephalum

small-flower sweetbriar

Rosa micrantha

Smallflower tamarisk

Tamarix parviflora

Small-Leaved Blinks

Montia parvifolia

Parasitoid wasp

Pteromalus semotus

Small Nightshade

Solanum triflorum

Parasitoid wasp

Ceranisus menes

small-rooted sedge

Carex micropoda

Sawfly

Athalia cornubiae

small staircase cone

Propebela turricula

Data Deficient

small water-pepper

Persicaria minor

Small Waterwort

Elatine minima

Small White Aster

Symphyotrichum racemosum

Small yellow balsam

Impatiens parviflora

Small Yellow Foxglove

Digitalis lutea

Fairyfly

Stethynium triclavatum

Cow Parsnip

Heracleum sphondylium

soft fissurewort

Crucihimalaya bursifolia

smoother rupture-wort

Herniaria glabra

Smooth hawksbeard

Crepis capillaris

smooth lady's-mantle

Alchemilla glabra

Smooth Saw-Grass

Cladium mariscoides

Smooth-Sheathed Fox Sedge

Carex laevivaginata

smooth spike-primrose

Epilobium campestre

Extinct

Snail-Seed Pondweed

Potamogeton bicupulatus

Sneezeweed

Achillea ptarmica