United States

Clown beetle

Carcinops pumilio

Aspicilia laevata

Clover weevil

Sitona hispidulus

Cloth of gold

Crocus angustifolius

Aspen Leaf Blotch Miner

Phyllonorycter apparella

Aquatic oligochaete worm

Paranais frici

American Great Bulrush

Schoenoplectus tabernaemontani

Allegheny Serviceberry

Amelanchier laevis

African senna

Senna didymobotrya

Adder'S Tongue

Ophioglossum vulgatum

Closed-Leaved Pondweed

Potamogeton foliosus

Closed Gentian

Gentiana rubricaulis

Aspen Bracket

Phellinus tremulae

Clitopilus scyphoides

Clitocybe diatreta

Asparagus Beetle

Crioceris asparagi

aquarium medusa

Cladonema radiatum

Clinton'S Wood Fern

Dryopteris clintoniana

Asparagus

Asparagus falcatus

Climbing False Buckwheat

Fallopia dumetorum

Climbing Bindweed

Fallopia scandens

Apricot Club

Clavulinopsis luteoalba

American Grass-Of-Parnassus

Parnassia glauca

Cliff-Brake

Cryptogramma stelleri

Clermont'S Spleenwort

Asplenium clermontiae

Asiatic apple

Malus spectabilis

Clear-Spored Rash Lichen

Lithothelium hyalosporum

Clayweed

Tussilago farfara

Asian waterwort

Elatine ambigua

Apple sucker

Cacopsylla mali

Clay-Coloured Weevil

Otiorhynchus singularis

Asian Tiger Mosquito

Aedes albopictus

Cinnamom Rose

Rosa majalis

Cinnabar Oysterling

Crepidotus cinnabarinus

Asian swordfern

Nephrolepis brownii

Apple Pith Moth

Blastodacna atra

American Gooseberry

Ribes cynosbati

Allegheny Monkey-Flower

Mimulus ringens

cinereus shrew

Sorex cinereus

Cimbicid sawfly

Abia lonicerae

Asian Spring Bulb

Scilla forbesii

Ciliate Wrinkle-Lichen

Tuckermannopsis ciliaris

Chrysanthemum Gall Midge

Rhopalomyia chrysanthemi

Asian spiderflower

Arivela viscosa

chrysalis snail

Lauria cylindracea

Chroococcus macrococcus

Chromosera cyanophylla

Chrome-Footed Bolete

Harrya chromipes

Asian Shore Crab

Hemigrapsus sanguineus

American Gooseberry

Ribes hirtellum

Christmas Fern Leaf Curl

Taphrina polystichi

Christmas Fern

Polystichum acrostichoides

Asian netvein hollyfern

Cyrtomium fortunei

Apple Leaf Skeletoniser

Choreutis pariana

Christmas candlestick

Leonotis nepetifolia

Asian marshweed

Limnophila sessiliflora

Choke

Epichloe typhina

Chocolate Root

Geum rivale

Asian Lady Beetle

Harmonia axyridis

Apple leaf midge

Dasineura mali