All Species

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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 Water Plantain

Alisma subcordatum

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

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American Witch-Hazel

Hamamelis virginiana

LC

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American Wood-Sorrel

Oxalis montana

NE

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American Wormseed

Dysphania ambrosioides

NE

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American Yew

Taxus canadensis

LC

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Amethyst Aster

Symphyotrichum amethystinum

NE

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Amethyst Chanterelle

Cantharellus amethysteus

LC

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Amethyst Deceiver

Laccaria amethystina

LC

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Amethyst Disco

Smardaea amethystina

NE