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United States

North America · Northern America

Total Species
11292
Threatened
794
CR + EN + VU
Population
331002647
Area
9833517 km²

Conservation Status Overview

Critically Endangered 159
Endangered 267
Vulnerable 368
Near Threatened 429
Least Concern 4219
Data Deficient 187
Not Evaluated 5464
Extinct in the Wild 1
Extinct 150

Species by Taxonomic Group

Plantae 5386
Animalia 3833
Fungi 1835
Protozoa 86
Bacteria 78
Chromista 74

Featured Species

All Species in United States

Airplant

Tillandsia gardneri

Not Evaluated

Alaska Bunchberry

Cornus unalaschkensis

Not Evaluated

Alaska Clubmoss

Diphasiastrum sitchense

Not Evaluated

Alaska Larch

Larix laricina

Not Evaluated

Alaska Large Awn Sedge

Carex macrochaeta

Least Concern

Albanian spurge

Euphorbia characias

Not Evaluated

Alberta Spruce

Picea glauca

Not Evaluated

Alder Leaf Gall Mite

Eriophyes laevis

Not Evaluated

Alder-Leaved Viburnum

Viburnum lantanoides

Not Evaluated

Alder Scalycap

Flammula alnicola

Least Concern

alder silk moss

Plagiothecium latebricola

Vulnerable

Alder Tongue

Taphrina alni

Least Concern

Alder wooly sawfly

Eriocampa ovata

Not Evaluated

Alecost

Tanacetum balsamita

Not Evaluated

Aleppo Avens

Geum aleppicum

Not Evaluated

Aleppo Grass

Sorghum halepense

Not Evaluated

Aleutian Maidenhair

Adiantum aleuticum

Not Evaluated

Alewife Floater

Utterbackiana implicata

Least Concern

Alexander palm

Ptychosperma elegans

Least Concern

Alexandra palm

Archontophoenix alexandrae

Not Evaluated

Alexandrian laurel

Calophyllum inophyllum

Least Concern

Alfalfa blotch leafminer

Agromyza frontella

Not Evaluated

Alfalfa Butterfly

Colias eurytheme

Least Concern

Alfalfa dodder

Cuscuta approximata

Not Evaluated

alfalfa leaf-cutter bee

Megachile rotundata

Not Evaluated

Algae

Cutleria cylindrica

Not Evaluated

Algal Pin Lichen

Chaenothecopsis pusiola

Least Concern

Alga Pondweed

Potamogeton confervoides

Least Concern

Alien field ant

Lasius alienus

Data Deficient

Alkali American Aster

Symphyotrichum ciliatum

Least Concern

Alkali-Grass

Anticlea elegans

Not Evaluated

Alkali sandspurry

Spergularia diandra

Not Evaluated

Alkali swainsonpea

Sphaerophysa salsula

Least Concern

Alkanet

Anchusa officinalis

Least Concern

Allegheny Blackberry

Rubus allegheniensis

Not Evaluated

Allegheny Monkey-Flower

Mimulus ringens

Not Evaluated

Allegheny Serviceberry

Amelanchier laevis

Not Evaluated

Allegheny Vine

Adlumia fungosa

Not Evaluated

Allheal

Valeriana officinalis

Near Threatened

Alligatorweed

Alternanthera philoxeroides

Not Evaluated

Allium leafminer

Phytomyza gymnostoma

Not Evaluated

Allspice

Pimenta dioica

Least Concern

Allspice

Lindera benzoin

Least Concern

Almond-Scented Russula

Russula fragrantissima

Endangered

Almond Woodwax

Hygrophorus agathosmus

Least Concern

Alpine Bilberry

Vaccinium uliginosum

Extinct

Alpine Bistort

Bistorta vivipara

Least Concern

Alpine Bitterroot

Lewisia pygmaea

Not Evaluated

Alpine Bloodspot Lichen

Ophioparma ventosa

Extinct

Alpine Blueberry

Vaccinium boreale

Not Evaluated

Alpine Bog Laurel

Kalmia microphylla

Least Concern

Alpine Bulrush

Trichophorum alpinum

Least Concern

Alpine Camouflage Lichen

Melanelia stygia

Least Concern

Alpine Cat'S-Tail

Phleum alpinum

Least Concern

Alpine Chickweed

Cerastium alpinum

Least Concern

Alpine Cliff Fern

Woodsia alpina

Least Concern

Alpine Cranberry

Vaccinium vitis-idaea

Near Threatened

Alpine currant

Ribes alpinum

Least Concern

Alpine Dock

Rumex alpinus

Not Evaluated

Alpine Earwort

Diplophyllum taxifolium

Least Concern

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