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United States

North America · Northern America

Total Species
11292
Threatened
794
CR + EN + VU
Population
331,002,647
Area
9,833,517 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

Cucumber Cap

Macrocystidia cucumis

Least Concern

Rough Bedstraw

Galium asprellum

Least Concern

Cuban zephyrlily

Zephyranthes rosea

Least Concern

Staph beetle

Oxypoda brachyptera

Least Concern

Cuckoo-Bread

Oxalis acetosella

Least Concern

Cuckoo Flower

Cardamine pratensis

Least Concern

Cuckoo-Spit Insect

Philaenus spumarius

Least Concern

Cucumber

Cucumis sativus

Not Evaluated

Cucumber Magnolia

Magnolia acuminata

Least Concern

Cudweed

Artemisia ludoviciana

Not Evaluated

Cultivated Cress

Lepidium sativum

Not Evaluated

Cultivated Garlic

Allium sativum

Not Evaluated

Cultivated Lettuce

Lactuca sativa

Not Evaluated

Cultivated licorice

Glycyrrhiza glabra

Least Concern

Cultivated radish

Raphanus sativus

Not Evaluated

Cultivated tobacco

Nicotiana tabacum

Not Evaluated

Cuman Ragweed

Ambrosia psilostachya

Not Evaluated

Cupid's Dart

Catananche caerulea

Not Evaluated

Savin

Juniperus sabina

Not Evaluated

Common Rose Bell

Notocelia rosaecolana

Least Concern

Curly Crisp-Moss

Trichostomum crispulum

Near Threatened

Curled Dock

Rumex crispus

Not Evaluated

curled hook-moss

Palustriella falcata

Least Concern

Curled Thistle

Carduus crispus

Least Concern

Staph beetle

Stenus niveus

Least Concern

Curly-Cup Gumweed

Grindelia squarrosa

Not Evaluated

curly heron's-bill moss

Dicranum fuscescens

Least Concern

Curly-Styled Wood Sedge

Carex rosea

Not Evaluated

Curlytop Knotweed

Persicaria lapathifolia

Least Concern

Curly White Water-Crowfoot

Ranunculus longirostris

Extinct

curly woodlouse

Cylisticus convexus

Least Concern

Currant Borer

Synanthedon tipuliformis

Least Concern

Currant Pug

Eupithecia assimilata

Least Concern

Curry Milkcap

Lactarius camphoratus

Least Concern

Curved Silk-Moss

Plagiothecium curvifolium

Least Concern

curved-beaked beardless moss

Hymenostylium recurvirostrum

Not Evaluated

Cushion Pink

Silene acaulis

Least Concern

Curved sicklegrass

Parapholis incurva

Not Evaluated

Cushion Baby'S-Breath

Psammophiliella muralis

Not Evaluated

Cushion Calamint

Clinopodium vulgare

Least Concern

Cut-Grass

Leersia oryzoides

Near Threatened

Cut-Leaf Blackberry

Rubus laciniatus

Not Evaluated

Cutleaf coneflower

Rudbeckia laciniata

Not Evaluated

Cut-Leaf Evening-Primrose

Oenothera laciniata

Not Evaluated

Cut-Leaved Grape-Fern

Sceptridium dissectum

Not Evaluated

Cut-Leaf Teasel

Dipsacus laciniatus

Not Evaluated

cut-leaved germander

Teucrium botrys

Not Evaluated

Alder rust

Melampsoridium hiratsukanum

Not Evaluated

Alder Stickpin Lichen

Stenocybe pullatula

Least Concern

cut notchwort

Tritomaria exsecta

Endangered

Cutworm Moth

Xestia c-nigrum

Least Concern

cylindrical cone

Conus cylindraceus

Least Concern

Dagger flower

Mantisalca salmantica

Not Evaluated

cylindric hairy-teeth moss

Trichodon cylindricus

Data Deficient

Cyperus Sedge

Carex pseudocyperus

Near Threatened

Cypress-Leaved Plait-Moss

Hypnum cupressiforme

Not Evaluated

Cyrano Darner

Nasiaeschna pentacantha

Least Concern

Daddy Longleg

Phalangium opilio

Least Concern

Dagger Rush

Juncus ensifolius

Not Evaluated

Dahlia

Dahlia pinnata

Not Evaluated

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