United States

Aconite

Aconitum napellus

Critically Endangered

Admiralty Island Meadow Vole (Admiraltiae)

Microtus pennsylvanicus

Agrimony

Agrimonia eupatoria

Near Threatened

Ajuga

Ajuga reptans

Endangered

Alder

Alnus glutinosa

Alder leaf beetle

Agelastica alni

Alder Spittlebug

Aphrophora alni

All Species in United States

Crambid Moth

Duponchelia fovealis

Cramp Balls

Annulohypoxylon thouarsianum

Cramp Balls

Daldinia concentrica

Crampbark

Viburnum opulus

Cranberry cotoneaster

Cotoneaster apiculatus

Crane fly

Symplecta pilipes

Crane fly

Atypophthalmus umbratus

Cranefly

Nephrotoma cornicina

Cranefly

Ormosia affinis

Cranesbill

Geranium pusillum

Crapemyrtle

Lagerstroemia indica

Cratered Duster

Amphinema byssoides

Crater Lichen

Diploschistes scruposus

Crawford'S Oval Sedge

Carex crawfordii

Crazy Scale Lichen

Cladonia turgida

Crazy Worm

Amynthas agrestis

Cream narcissus

Narcissus tazetta

Cream Pea

Lathyrus ochroleucus

Cream pincushions

Scabiosa ochroleuca

Cream Pinkgill

Entoloma sericellum

Cream-Spot Ladybird

Calvia quatuordecimguttata

Creek Heelsplitter

Lasmigona compressa

Creeping baby's-breath

Gypsophila repens

Creeping bentgrass

Agrostis stolonifera

Creeping-bluet

Oldenlandiopsis callitrichoides

Creeping buttercup

Ranunculus repens

Creeping Charlie

Glechoma hederacea

creeping cinquefoil

Potentilla reptans

Creeping Cotoneaster

Cotoneaster adpressus

Creeping croftonweed

Ageratina riparia

Creeping Fescue

Festuca rubra

creeping fingerwort

Lepidozia reptans

Creeping inchplant

Callisia repens

Creeping indigo

Indigofera spicata

Creeping Jacob'S-Ladder

Polemonium reptans

Creeping Lady'S-Tresses

Goodyera repens

Creeping lettuce

Ixeris stolonifera

Creeping Love Grass

Eragrostis hypnoides

Creeping Mayflower

Epigaea repens

Extinct

Creeping meadow foxtail

Alopecurus arundinaceus

Creeping mirrorplant

Coprosma repens

Creeping Phlox

Phlox stolonifera

creeping redflush

Lampranthus multiradiatus

Creeping Red Raspberry

Rubus pubescens

Creeping Saltbush

Atriplex prostrata

creeping saxifrage

Saxifraga stolonifera

Creeping Spearwort

Ranunculus reptans

Creeping Speedwell

Veronica filiformis

Creeping Spikemoss

Selaginella apoda

Creeping spotflower

Acmella decumbens

Creeping Thyme

Thymus praecox

Creeping Thyme

Thymus pulegioides

Creeping velvetgrass

Holcus mollis

Creeping White Clover

Trifolium repens

Creeping yellowcress

Rorippa sylvestris

Crenulated Flapwort

Solenostoma gracillimum

Crenulate Rhabdoweisia Moss

Rhabdoweisia crenulata

Near Threatened

Creole cotton

Gossypium barbadense

Creole tea

Sauvagesia erecta

crescent-cup liverwort

Lunularia cruciata