Photo of sawtooth sunflower flowerhead.

    Sawtooth Sunflower

    Helianthus grosseserratus
    Male eastern Hercules beetle walking in grass

    Scarab Beetles

    About 1,700 species in North America north of Mexico.
    Photo of a male scissor-tailed flycatcher perched on a barbwire fence.

    Scissor-Tailed Flycatcher

    Tyrannus forficatus
    Photo of eastern woodland sedge plant growing among leaf litter.

    Sedges

    Carex, Schoenoplectus, Scirpus, and other genera
    Photo of self-heal flower head

    Self-Heal (Heal-All)

    Prunella vulgaris
    fork and knife icon

    Edible

    Photo of sensitive brier flowers

    Sensitive Briar

    Mimosa quadrivalvis (also Schrankia nuttallii)
    Photo of large group of sericea lespedeza plants

    Sericea Lespedeza

    Lespedeza cuneata
    invasive icon

    Invasive

    Illustration of shagbark hickory leaf and fruits.

    Shagbark Hickory

    Carya ovata
    Photo of shepherd’s purse plant and flowers

    Shepherd's Purse

    Capsella bursa-pastoris
    fork and knife icon

    Edible

    Illustration of shingle oak leaf.

    Shingle Oak

    Quercus imbricaria
    Photo of shining blue star flower cluster

    Shining Blue Star

    Amsonia illustris
    Photo of shooting star flowers

    Shooting Star

    Dodecatheon meadia
    short eared owl

    Short-Eared Owl

    Asio flammeus
    image of a Carolina Grasshopper

    Short-Horned Grasshoppers

    About 620 species in North America
    Photo of showy evening primrose plant with flowers

    Showy Evening Primrose

    Oenothera speciosa
    Photo of showy partridge pea showing flowers, buds, and leaves.

    Showy Partridge Pea

    Chamaecrista fasciculata (formerly Cassia fasciculata)
    Short-tailed shrew pointing its head upward

    Shrews

    Sorex, Blarina, and Cryptotis spp.
    Photo of sideoats grama, closeup on floral spikes showing orange anthers.

    Sideoats Grama

    Bouteloua curtipendula
    Image of a silver-spotted skipper

    Silver-Spotted Skipper

    Epargyreus clarus
    Photo of a silvery checkerspot, Wings Folded

    Silvery Checkerspot

    Chlosyne nycteis
    Photo of an unidentified grass skipper

    Skippers

    About 275 species in North America north of Mexico
    Photo of slender bush clover flowers

    Slender Bush Clover

    Lespedeza virginica
    Photo of common gerardia plant with flowers

    Slender False Foxglove

    Agalinis tenuifolia (formerly Gerardia tenuifolia)
    Photo of slender mountain mint flowers

    Slender Mountain Mint

    Pycnanthemum tenuifolium
    fork and knife icon

    Edible

    Photo of a monkey slug caterpillar on an oak leaf

    Slug Caterpillar Moths

    More than 20 species in Missouri
    Photo of small bluet flower showing purplish center

    Small Bluet (Tiny Bluet)

    Houstonia pusilla (H. minima; Hedyotis crassifolia)
    Photo of smooth spiderwort flowers being visited by beelike syrphid flies

    Smooth Spiderwort

    Tradescantia ohiensis
    fork and knife icon

    Edible

    Illustration of smooth sumac leaves, flowers, fruits.

    Smooth Sumac

    Rhus glabra
    fork and knife icon

    Edible

    Photo of a Snowberry Clearwing

    Snowberry Clearwing

    Hemaris diffinis
    snowy owl

    Snowy Owl

    Nyctea scandiaca
    A reddish centipede crawls over a rock

    Soil Centipedes

    There are many species of soil centipedes in our state.
    image of Soldier Beetle on Goldenrod

    Soldier Beetles

    Nearly 500 species in North America north of Mexico
    Image of a song sparrow

    Song Sparrow

    Melospiza melodia
    Photo of a southern dogface taking nectar on a pale purple coneflower

    Southern Dogface

    Zerene cesonia (formerly Colias cesonia)
    Photo of southern wild senna showing a flower cluster and a few leaflets.

    Southern Wild Senna

    Senna marilandica (formerly Cassia marilandica)
    A white-lined sphinx moth sips nectar from a purple locoweed flower

    Sphinx Moths (Hawk Moths)

    More than 50 species in Missouri
    Photo of a Spicebush Swallowtail, Male, Wings Spread

    Spicebush Swallowtail

    Pterourus troilus
    Glossy black spider wasp manipulating paralyzed spider

    Spider Wasps

    About 300 species in North America north of Mexico
    Photo of spiked lobelia flower stalk.

    Spiked Lobelia

    Lobelia spicata
    image of a Spiny Oak Slug Moth

    Spiny Oak-Slug Moth

    Euclea delphinii
    image of a Spittlebug and nest on plant stem

    Spittlebugs and Froghoppers

    About 60 species in North America north of Mexico
    spotted knapweed

    Spotted Knapweed

    Centaurea stoebe
    invasive icon

    Invasive

    Photo of a spotted orbweaver or barn spider, Neoscona crucifera, with black background

    Spotted Orbweavers

    Neoscona spp.
    Photo of a spotted sandpiper standing on a muddy shore, side view.

    Spotted Sandpiper

    Actitis macularius
    Photo of spring beauty plants and flowers

    Spring Beauty

    Claytonia virginica
    fork and knife icon

    Edible

    Elongate-bodied springtail on a brown leaf

    Springtails

    More than 8,000 species globally
    Squash bug on sand

    Squash Bugs

    Anasa tristis and other Anasa spp.
    Photo of star of Bethlehem cluster of plants with flowers

    Star of Bethlehem

    Ornithogalum umbellatum
    Poisonous Icon

    Poisonous

    Photo of a starry campion flower
    Green stink bug on a leaf

    Stink Bugs

    In North America, more than 200 species in 64 genera.

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