Photo of female heptagonal orbweaver in web.
    Shagbark Hickory

    Hickories

    Carya spp.
    Photo of hispid buttercup plant with flower

    Hispid Buttercup

    Ranunculus hispidus
    Photo of hoary puccoon closeup of flower cluster

    Hoary Puccoon (Orange Puccoon)

    Lithospermum canescens
    image of a Honey Locust Moth

    Honey Locust Moth

    Syssphinx bicolor (syn. Sphingicampa bicolor)
    Image of a honeybee worker.

    Honeybee

    Apis mellifera
    Hooded Warbler

    Hooded Warbler

    Setophaga citrina (formerly Wilsonia citrina)
    Photo of a Horace's Duskywing

    Horace's Duskywing

    Erynnis horatius
    image of Horned Passalus crawling on wood

    Horned Passalus

    Odontotaenius disjunctus
    Photo of a Pigeon Tremex Horntail

    Horntails

    About 28 species in North America
    image of Horse Fly on tree trunk

    Horse and Deer Flies

    Tabanus, Chrysops, and related genera
    Photo of horse nettle flowers and leaves

    Horse Nettle

    Solanum carolinense
    Poisonous Icon

    Poisonous

    Photo of horseweed flowers

    Horseweed (Canada Fleabane, Hog Weed)

    Conyza canadensis (formerly Erigeron canadensis)
    Photo of a male house sparrow

    House Sparrow

    Passer domesticus
    Photograph of house wren perched on a branch

    House Wren

    Troglodytes aedon
    Hummingbird clearwing taking nectar from a flower

    Hummingbird Clearwing

    Hemaris thysbe
    image of an Ichneumon Wasp on tree trunk

    Ichneumon Wasps

    More than 5,000 species in North America
    Photo of Indian grass flower head in bloom

    Indian Grass

    Sorghastrum nutans
    Photo of Indian hemp plant

    Indian Hemp (Dogbane)

    Apocynum cannabinum
    Poisonous Icon

    Poisonous

    Photo of Indian paintbrush flowers

    Indian Paintbrush

    Castilleja coccinea
    Photo of several Indian pipe plants with flowers, rising out of leaf litter.

    Indian Pipe

    Monotropa uniflora
    Photo of an Indiana myotis hanging from a cave ceiling.

    Indiana Myotis (Indiana Bat)

    Myotis sodalis
    exclamation mark

    Endangered

    Photo of a male indigo bunting perched on a branch, side view.

    Indigo Bunting

    Passerina cyanea
    Photo of a male Io Moth

    Io Moth

    Automeris io
    Photo of Jack-in-the-pulpit plant showing foliage and flowering structure

    Jack-in-the-Pulpit

    Arisaema triphyllum
    Poisonous Icon

    Poisonous

    Photo of Jacob's ladder plant showing leaves and flowers

    Jacob’s Ladder

    Polemonium reptans
    Japanese beetle on a leaf

    Japanese Beetle

    Popillia japonica
    Illustration of Japanese honeysuckle leaves, flowers, fruits.

    Japanese Honeysuckle

    Lonicera japonica
    invasive icon

    Invasive

    Photo of Japanese stiltgrass

    Japanese Stiltgrass (Eulalia)

    Microstegium vimineum
    invasive icon

    Invasive

    Photo of the upper portions of two Jerusalem artichoke plants.

    Jerusalem Artichoke (Sunflower Artichoke)

    Helianthus tuberosus
    fork and knife icon

    Edible

    Photo of Johnson grass flower clusters

    Johnson Grass

    Sorghum halepense
    invasive icon

    Invasive

    Illustration of Kentucky coffee tree leaves, flowers, fruit.

    Kentucky Coffee Tree

    Gymnocladus dioicus
    Photo of a Kentucky warbler perched on a small branch

    Kentucky Warbler

    Geothlypis formosa (formerly Oporornis formosus)
    Photo of Korean lespedeza plant with flowers

    Korean Lespedeza (Korean Clover)

    Kummerowia stipulacea (formerly Lespedeza stipulacea)
    Photo of a huge mass of kudzu vines covering trees and ground

    Kudzu

    Pueraria montana
    fork and knife icon

    Edible

    invasive icon

    Invasive

    Lace bugs on a leaf

    Lace Bugs

    About 165 species in North American north of Mexico
    Illustration of ladies' eardrops leaves, flowers, fruit

    Ladies' Eardrops

    Brunnichia ovata (formerly B. cirrhosa)
    Seven-spotted lady beetle on a flower

    Lady Beetles (Ladybird Beetles; Ladybugs)

    Nearly 500 species in North America north of Mexico
    Photo of lance-leaved loosestrife plant with flowers

    Lance-Leaved Loosestrife

    Lysimachia lanceolata
    Photo of bellwort

    Large Bellwort

    Uvularia grandiflora
    Photo of a large-flowered gaura inflorescence

    Large-Flowered Gaura

    Oenothera filiformis (formerly Gaura longiflora, G. biennis)
    Swamp milkweed leaf beetle on a leaf it has chewed on.

    Leaf Beetles

    About 2,000 species in North America
    Leaf-footed bug on a leaf

    Leaf-Footed Bugs

    Nearly 90 species in North America north of Mexico
    photo of a leafcutter bee

    Leafcutter Bees

    Species in the genus Megachile.
    Photo of a leaffolder moth visiting a flower

    Leaffolder Moths

    Desmia spp.
    image of a Leafhopper on leaf

    Leafhoppers

    More than 3,000 species in North America north of Mexico
    Photo of least weasel

    Least Weasel

    Mustela nivalis
    Illustration of limber honeysuckle leaves, flowers, fruits.

    Limber Honeysuckle

    Lonicera dioica

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