Photo of an Acadian flycatcher perched on a twig.

    Acadian Flycatcher

    Empidonax virescens
    Photo of Adam and Eve orchid flowers

    Adam and Eve Orchid

    Aplectrum hyemale
    Photo of an Engelmann’s adder’s tongue with a black background

    Adder's Tongues

    Ophioglossum spp.
    Illustration of alternate-leaved dogwood leaves, flowers, fruits.

    Alternate-Leaved Dogwood

    Cornus alternifolia
    Illustration of American basswood leaves, flowers, fruits.
    Illustration of American beech leaves and nuts.

    American Beech

    Fagus grandifolia
    Illustration of American bittersweet leaves, flowers, fruits

    American Bittersweet

    Celastrus scandens
    Photo of two bears

    American Black Bear

    Ursus americanus
    Illustration of American black currant leaves, flowers, fruits

    American Black Currant

    Ribes americanum
    fork and knife icon

    Edible

    Illustration of American bladdernut leaves, flowers, fruits.

    American Bladdernut

    Staphylea trifolia
    Photo of an American burying beetle

    American Burying Beetle

    Nicrophorus americanus
    exclamation mark

    Endangered

    image of American Carrion Beetle

    American Carrion Beetle

    Necrophila americana
    Photograph of American Crow

    American Crow

    Corvus brachyrhynchos
    Illustration of American elm leaves.

    American Elm

    Ulmus americana
    Photo of American feverfew flower cluster.

    American Feverfew

    Parthenium integrifolium
    Photo of American germander flowers

    American Germander

    Teucrium canadense
    Photo of American ginseng plant with ripe berries

    American Ginseng

    Panax quinquefolius
    fork and knife icon

    Edible

    Illustration of American hazelnut leaves, flowers, fruits.

    American Hazelnut

    Corylus americana
    fork and knife icon

    Edible

    Illustration of American holly leaves, flowers, fruit.

    American Holly

    Ilex opaca
    Illustration of American hornbeam leaves and fruits.

    American Hornbeam (Musclewood)

    Carpinus caroliniana
    Image of an american kestrel

    American Kestrel

    Falco sparverius
    Photo of an American lady butterfly, wings folded.

    American Lady

    Vanessa virginiensis
    Image of mink

    American Mink

    Neovison vison
    Image of a male American redstart

    American Redstart

    Setophaga ruticilla
    american robin in water

    American Robin

    Turdus migratorius
    Illustration of American smoke tree leaves, flowers, fruits

    American Smoke Tree

    Cotinus obovatus
    American snout butterfly resting with wings folded

    American Snout

    Libytheana carinent
    Image of an american tree sparrow

    American Tree Sparrow

    Spizelloides arborea (formerly Spizella arborea)
    photo of American woodcock

    American Woodcock

    Scolopax minor
    image of a Thread-Waisted Wasp

    Ammophila Wasps

    Ammophila spp.
    amur corktree

    Amur Corktree

    Phellodendron amurense
    Andrenid or miner bee collecting pollen on a flower

    Andrenid Bees (Miner Bees)

    More than 1,200 species in North America north of Mexico
    image of Walker's Cicada clinging to a perch

    Annual Cicadas

    Neotibicen spp. (in Missouri) (formerly Tibicen)
    Photo of adult antlion with wings spread

    Antlion Adults

    More than 100 species in North America north of Mexico
    image of Antlion Larva on rock

    Antlion Larvae (Doodlebug Larvae)

    More than 100 species in North America north of Mexico
    Acrobat ants on a leaf

    Ants

    More than 700 species in North America
    several yellow aphids on plant

    Aphids

    More than 1,300 species in North America north of Mexico
    Longhorn bee visiting a flower, viewed from side

    Apid Bees

    About 1,000 species in North America north of Mexico
    Photo of a female arabesque orbweaver spider

    Arabesque Orbweaver

    Neoscona arabesca
    Photo of an armored harvestman walking on the ground

    Armored Harvestmen

    Members of suborder Laniatores
    Photo of arrow-shaped micrathena spider

    Arrowshaped Micrathena

    Micrathena sagittata
    Illustration of arrowwood viburnum leaves, flowers, fruit.

    Arrowwood Viburnum

    Viburnum dentatum
    Asian longhorned beetle male, specimen

    Asian Longhorned Beetle

    Anoplophora glabripennis
    invasive icon

    Invasive

    image of Assassin Bug crawling on a leaf

    Assassin Bugs

    Nearly 200 species in North America north of Mexico
    Venomous Icon

    Venomous

    Female spider wasp grasping and dragging body of sac spider
    Illustration of autumn olive leaves, flowers, fruit.

    Autumn Olive

    Elaeagnus umbellata
    fork and knife icon

    Edible

    invasive icon

    Invasive

    Photo of autumn sneezeweed flowerheads, closeup.

    Autumn Sneezeweed

    Helenium autumnale
    Image of bachman's sparrow

    Bachman's Sparrow

    Peucaea aestivalis (formerly Aimophila aestivalis)
    exclamation mark

    Endangered

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