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6,550 species in Shenandoah National Park
Callophrys niphon
Calystegia sepium
Capnochroa fuliginosa
Capsella bursa-pastoris
Carabus serratus
Carex argyrantha
Carex conoidea
Carex gracillima
Carex pensylvanica
Carya ovalis
Catocala palaeogama
Caulophyllum giganteum
Celastrus scandens
Celithemis fasciata
Ceratiomyxa porioides
Chironomus crassicaudatus
Chymomyza amoena
Circaea lutetiana
Cladonia arbuscula
Cladonia chlorophaea
Cladonia parasitica
Clintonia umbellulata
Coelioxys sayi
Conchylodes ovulalis
Cordyligaster septentrionalis
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