Canada

Aconite

Aconitum napellus

Critically Endangered

Agrimony

Agrimonia eupatoria

Near Threatened

Ajuga

Ajuga reptans

Alder

Alnus glutinosa

Alexanders

Angelica atropurpurea

Allegheny Serviceberry

Amelanchier arborea

Common Silver Hairgrass

Aira caryophyllea

All Species in Canada

common wave

Cabera exanthemata

Common wheat

Triticum aestivum

Common White Heart-Leaf Aster

Eurybia divaricata

Common Wild Oatgrass

Danthonia spicata

Common Woodrush

Luzula campestris

Common Yellow Oxalis

Oxalis stricta

Compressed Rush

Juncus compressus

Cone Shaped Sedge

Carex conoidea

Cone-Spur Bladderwort

Utricularia gibba

Confused flour beetle

Tribolium confusum

Connate Beggarticks

Bidens connata

Coral Honeysuckle

Lonicera sempervirens

Cord-Root Sedge

Carex chordorrhiza

Coreopsis

Coreopsis lanceolata

Cork Elm

Ulmus thomasii

Corkscrew Willow

Salix matsudana

Corndaisy

Glebionis segetum

Corn poppy

Papaver rhoeas

Corn speedwell

Veronica arvensis

Corn spurry

Spergula arvensis

Corrugate-Seeded Spurge

Euphorbia glyptosperma

Corsican Mint

Mentha requienii

Cotoneaster

Cotoneaster multiflorus

Cotton Burdock

Arctium tomentosum

Cotton-Grass Fanner

Glyphipterix haworthana

Cotton Thistle

Onopordum acanthium

cowbane

Cicuta virosa

cream mountain heather

Phyllodoce glanduliflora

Cretan rockrose

Cistus creticus

Cowslip

Primula veris

Crab Finger Grass

Digitaria sanguinalis

Crabgrass

Eleusine indica

Cranesbill

Geranium pusillum

Cream Pea

Lathyrus ochroleucus

Cream pincushions

Scabiosa ochroleuca

Cream-Spot Ladybird

Calvia quatuordecimguttata

Creeping Jacob'S-Ladder

Polemonium reptans

Creeping bentgrass

Agrostis stolonifera

Creeping Charlie

Glechoma hederacea

creeping cinquefoil

Potentilla reptans

Creeping Phlox

Phlox stolonifera

Creeping Lady'S-Tresses

Goodyera repens

creeping raspberry

Rubus pedatus

Creeping Love Grass

Eragrostis hypnoides

Creeping meadow foxtail

Alopecurus arundinaceus

creeping Oregon-grape

Mahonia repens

Creeping Red Raspberry

Rubus pubescens

Creeping Saltbush

Atriplex prostrata

Creeping Thyme

Thymus pulegioides

Creeping Thyme

Thymus praecox

crested arrowhead

Sagittaria cristata

Creeping velvetgrass

Holcus mollis

Creeping White Clover

Trifolium repens

Creeping yellowcress

Rorippa sylvestris

Crested wheatgrass

Agropyron cristatum

Crested Buckler Fern

Dryopteris cristata

Crested Dog'S-Tail

Cynosurus cristatus

Near Threatened

Crested Hair Grass

Koeleria macrantha

Critically Endangered

Crinkled Hairgrass

Avenella flexuosa