All Species

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American Red Currant

Ribes triste

NE

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American Red Raspberry

Rubus idaeus

LC

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American Rhododendron

Rhododendron maximum

NE

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American Rosette Lichen

Physcia americana

NE

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Domin's Club

Cheirodendron dominii

EN

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American Royal Fern

Osmunda spectabilis

LC

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American Rubyspot

Hetaerina americana

LC

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American-Sarsaparilla

Aralia nudicaulis

NE

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American Savin

Juniperus horizontalis

NE

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American Sea Rocket

Cakile edentula

NE

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American Seaside Thift

Limonium carolinianum

LC

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American Seguieria

Seguieria americana

LC

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American Senna

Senna marilandica

NE

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American Shield Fern

Dryopteris intermedia

NE

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American Shoreweed

Littorella uniflora

NT

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American skunk cabbage

Lysichiton americanus

NE

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American Slipper Limpet

Crepidula fornicata

NE

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American snowbell

Styrax americanus

LC

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American Spikenard

Aralia racemosa

NE

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American Spurred Gentian

Halenia deflexa

NE

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American Storax

Liquidambar styraciflua

LC

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American Tar Spot

Rhytisma americanum

NE

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American Tearthumb

Persicaria sagittata

LC

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American Tickseed

Coreopsis grandiflora

NE

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American Toad

Anaxyrus americanus

LC

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American Twinflower

Linnaea borealis

LC

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American Wainscot

Mythimna unipuncta

NE

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American Wall Fern

Polypodium virginianum

NE

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American Walnut

Juglans nigra

NE

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American Water-Lily

Nymphaea odorata

LC

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American Water-Milfoil

Myriophyllum sibiricum

LC

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American Waterwort

Elatine americana

LC

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American White Moth

Hyphantria cunea

NE

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American Wild Ginger

Asarum canadense

NE

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American Willowherb

Epilobium ciliatum

NE

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American Wintercress

Barbarea orthoceras

NE