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Plant-Feeding
Insect Database


Author Abbreviations

Citations

Send questions or comments
to Dr. John Hilty at: john@illinoiswildflowers.info


Return to Illinois Wildflowers

Last Updated: 3-27-14

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Abies spp. (Fir)

Abies balsamea (Balsam Fir)

Abies fraseri (Fraser's Fir)

Abutilon theophrastii (Velvet Leaf)

Acalypha spp. (Mercury, Copperleaf)

Acalypha graciliens (Slender Mercury)

Acalypha virginica (Virginia Mercury)

Acer spp. (Maple)

Acer campestre (Field Maple)

Acer negundo (Box Elder)

Acer nigrum (Black Maple)

Acer platanoides (Norway Maple)

Acer pseudoplatanus (Sycamore Maple)

Acer rubrum (Red Maple)

Acer saccharinum (Silver Maple)

Acer saccharum (Sugar Maple)

Acer spicatum (Mountain Maple)

Achillea spp. (Yarrow)

Achillea millefolium (Yarrow)

Aconitum spp. (Monkshood)

Aconitum uncinatum (Wild Monkshood)

Acorus spp. (Sweet Flag)

Acorus americanus (American Sweet Flag)

Acorus calamus (Sweet Flag)

Adiantum spp. (Maidenhair Fern)

Adiantum pedatum (Northern Maidenhair Fern)

Aegilops spp. (Goatgrass)

Aegopodium podagraria (Goutweed)

Aesculus spp. (Buckeye)

Aesculus flava (Sweet Buckeye)

Aesculus glabra (Ohio Buckeye)

Aesculus hippocastanum (Horse Chestnut)

Aesculus pavia (Red Buckeye)

Agalinus spp. (Gerardia)

Agalinus fasciculata (Tufted Gerardia)

Agastache foeniculum (Anise Hyssop)

Agastache neptoides (Yellow Giant Hyssop)

Ageratina altissima (White Snakeroot)

Agoseris spp. (Mountain Dandelion)

Agrimonia spp. (Agrimony)

Agrimonia eupatoria (European Agrimony)

Agropyron spp. (Wheatgrass)

Agropyron cristatum (Crested Wheatgrass)

Agropyron desertorum (Desert Wheatgrass)

Agrostis spp. (Bent Grass)

Agrostis gigantea (Redtop)

Agrostis perennans (Upland Bentgrass)

Agrostis stolonifera palustris (Creeping Bentgrass)

Ailanthus altissima (Tree-of-Heaven)

Albizia julibrissin (Silktree Mimosa)

Alcea rosea (Hollyhock)

Alisma spp. (Water Plantain)

Alliaria petiolata (Garlic Mustard)

Allium spp. (Wild Onion, Onion)

Allium canadense (Wild Garlic)

Allium cernuum (Nodding Onion)

Allium porrum (Cultivated Leek)

Alnus spp. (Alder)

Alnus glutinosa (Black Alder)

Alnus incana (Speckled Alder)

Alnus serrulata (Brookside Alder)

Alopecurus spp. (Foxtail)

Alopecurus geniculatus (Marsh Foxtail)

Alopecurus pratensis (Meadow Foxtail)

Alternanthera philoxeroides (Alligator Weed)

Alyssum spp. (Alyssum)

Amaranthus spp. (Amaranth, Pigweed)

Amaranthus cruentus (Purple Amaranth)

Amaranthus hybridus (Tall Pigweed)

Amaranthus hypochondriacus (Love-Lies-Bleeding)

Amaranthus retroflexus (Rough Pigweed)

Amaranthus spinosus (Spiny Pigweed)

Ambrosia spp. (Ragweed)

Ambrosia artemisiifolia (Common Ragweed)

Ambrosia bidentata (Toothed Ragweed)

Ambrosia psilostachya (Western Ragweed)

Ambrosia trifida (Giant Ragweed)

Amelanchier spp. (Serviceberry, Juneberry)

Amelanchier alnifolia (Saskatoon Serviceberry)

Amelanchier arborea (Nannyberry)

Amelanchier canadensis (Canadian Serviceberry)

Ammophila spp. (Beach Grass)

Amorpha spp. (Leadplant, False Indigo)

Amorpha canescens (Leadplant)

Amorpha fruticosa (False Indigo)

Ampelamus albidus (Bluevine)

Ampelopsis spp. (Ampelopsis)

Ampelopsis arborea (Pepper Vine)

Ampelopsis cordata (Raccoon Grape)

Amphicarpaea bracteata (Hog Peanut)

Amsinckia lyopsoides (Tarweed)

Amsonia tabernaemontana (Bluestar)

Anaphalis margaritacea (Pearly Everlasting)

Anchusa spp. (Alkanet)

Anchusa arvensis (Small Bugloss)

Andromeda glaucophylla (Bog Rosemary)

Andropogon spp. (Beardgrass, Bluestem)

Andropogon gerardii (Big Bluestem)

Andropogon glomeratus (Bushy Broom Sedge)

Andropogon hallii (Sand Bluestem)

Andropogon virginicus (Broom Sedge)

Anemone spp. (Anemone)

Anemone canadensis (Meadow Anemone)

Anethum graveolens (Dill)

Angelica spp. (Angelica)

Angelica atropurpurea (Great Angelica)

Anoda cristata (Anoda)

Antennaria spp. (Pussytoes)

Antennaria neglecta (Field Pussytoes)

Antennaria plantaginifolia (Plantain-Leaved Pussytoes)

Antenoron virginianum (Jumpseed)

Anthemis spp. (Mayweed, Chamomile)

Anthemis cotula (Dog Fennel)

Antirrhinum spp. (Snapdragon)

Antirrhinum majus (Snapdragon)

Apios americana (Groundnut)

Apium spp. (Marsh Parsley)

Apocynum spp. (Dogbane)

Apocynum androsaemifolium (Spreading Dogbane)

Apocynum cannabinum (Common Dogbane)

Aquilegia spp. (Columbine)

Aquilegia canadensis (Wild Columbine)

Aquilegia vulgaris (European Columbine)

Arabidopsis thaliana (Mouse-Ear Cress)

Arabis spp. (Rock Cress)

Arabis canadensis (Sicklepod)

Arabis drummondii (Drummond's Rock Cress)

Arabis glabra (Tower Mustard)

Arabis laevigata (Smooth Rock Cress)

Arabis lyrata (Sand Cress)

Arabis serotina (Shale Barren Rock Cress)

Aralia nudicaulis (Wild Sarsaparilla)

Aralia racemosa (American Spikenard)

Arctium spp. (Burdock)

Arctium lappa (Great Burdock)

Arctium minus (Common Burdock)

Arctostaphylos spp. (Bearberry)

Arctostaphylos uva-ursi (Bearberry)

Argentina anserina (Silverweed)

Arisaema dracontium (Green Dragon)

Arisaema triphyllum (Jack-in-the-Pulpit)

Aristida spp. (Three-Awn Grass)

Aristida longespica (Slim-Spike Three-Awn)

Aristida oligantha (Prairie Three-Awn)

Aristida purpurascens (Arrowfeather)

Aristolochia spp. (Pipevine)

Aristolochia durior (Dutchman's Pipe)

Aristolochia serpentaria (Virginia Snakeroot)

Aristolochia tomentosa (Woolly Dutchman's Pipe)

Armoracia spp. (Horseradish)

Armoracia rusticana (Horseradish)

Arnoglossum atriplicifolium (Pale Indian Plantain)

Aronia spp. (Chokeberry)

Aronia arbutifolia (Red Chokeberry)

Aronia melanocarpa (Black Chokeberry)

Aronia prunifolia (Purple Chokeberry)

Arrhenatherum elatius (Tall Oat Grass)

Artemisia spp. (Sagebrush, Wormwood)

Artemisia abrotanum (Southern Wormwood)

Artemisia absinthium (Absinth Wormwood)

Artemisia campestris caudata (Beach Wormwood)

Artemisia dracunculus (Wild Tarragon)

Artemisia frigida (Prairie Sagebrush)

Artemisia ludoviciana (Prairie Sage)

Artemisia vulgaris (Mugwort)

Arum spp. (Arum)

Aruncus dioicus (Goat's Beard)

Arundinaria spp. (Cane, Bamboo)

Arundinaria gigantea (Giant Cane)

Arundo donax (Giant Reed)

Asclepias spp. (Milkweed)

Asclepias exaltata (Poke Milkweed)

Asclepias hirtella (Tall Green Milkweed)

Asclepias incarnata (Swamp Milkweed)

Asclepias purpurascens (Purple Milkweed)

Asclepias sullivantii (Prairie Milkweed)

Asclepias syriaca (Common Milkweed)

Asclepias tuberosa (Butterfly Milkweed)

Asclepias verticillata (Whorled Milkweed)

Asclepias viridiflora (Short Green Milkweed)

Ascyrum hypericoides (St. Andrew's Cross)

Asimina triloba (Pawpaw)

Asparagus spp. (Asparagus)

Asparagus officinalis (Asparagus)

Asplenium spp. (Spleenwort)

Asplenium pinnatifidum (Lobed Spleenwort)

Asplenium rhizophyllum (Walking Fern)

Aster spp. (Aster)

Aster anomalus (Cliff Aster)

Aster cordifolius (Heart-Leaved Aster)

Aster divaricatus (White Wood Aster)

Aster drummondii (Drummond's Aster)

Aster dumosus (Rice Button Aster)

Aster ericoides (Heath Aster)

Aster laevis (Smooth Blue Aster)

Aster lanceolatus (Panicled Aster)

Aster lateriflorus (Side-Flowering Aster)

Aster macrophyllus (Big-Leaved Aster)

Aster novae-angliae (New England Aster)

Aster oblongifolius (Aromatic Aster)

Aster patens (Spreading Aster)

Aster pilosus (Frost Aster)

Aster praealtus (Willow Aster)

Aster prenanthoides (Crooked-Stem Aster)

Aster puniceus (Swamp Aster)

Aster radulus (Rough Wood Aster)

Aster sagittifolius (Arrow-Leaved Aster)

Aster sericeus (Silky Aster)

Aster shortii (Short's Aster)

Aster undulatus (Wavy-Leaved Aster)

Aster urophyllus (White Arrow-Leaved Aster)

Astragalus spp. (Milkvetch)

Astragalus canadensis (Canada Milkvetch)

Astragalus crassicarpus (Ground Plum)

Athyrium spp. (Lady Fern)

Athyrium filix-femina (Lady Fern)

Atriplex spp. (Orach)

Atriplex argentea (Silver Orach)

Atriplex hortensis (Garden Orach)

Atriplex patula (Common Orach)

Atriplex prostrata (Prostrate Orach)

Aureolaria spp. (False Foxglove)

Aureolaria flava (Smooth False Foxglove)

Aureolaria pedicularia (Fern-Leaved False Foxglove)

Avena spp. (Oats, Wild Oats)

Avena fatua (Wild Oats)

Avena sativa (Oats)

Azolla caroliniana (Carolina Mosquito Fern)

Baptisia spp. (Wild Indigo)

Baptisia alba macrophylla (White Wild Indigo)

Baptisia australis (Blue Wild Indigo)

Baptisia leucophaea (Cream Wild Indigo)

Baptisia tinctoria (Yellow Wild Indigo)

Barbarea spp. (Winter Cress)

Barbarea orthoceras (American Yellow Rocket)

Barbarea verna (Early Yellow Rocket)

Barbarea vulgaris (Yellow Rocket)

Berberis spp. (Barberry)

Berberis thunbergii (Japanese Barberry)

Berberis vulgaris (European Barberry)

Berteroa incana (Hoary Alyssum)

Beta vulgaris (Garden Beets)

Betula spp. (Birch)

Betula alleghaniensis (Yellow Birch)

Betula lenta (Sweet Birch)

Betula nigra (River Birch)

Betula papyrifera (Paper Birch)

Betula pendula (European Weeping Birch)

Betula populifolia (Gray Birch)

Betula pumila (Dwarf Birch)

Betula sandbergii (Sandberg's Birch)

Bidens spp. (Beggar's Ticks, Tickseed Sunflower)

Bidens aristosa (Tickseed Sunflower)

Bidens cernua (Nodding Bur-Marigold)

Bidens frondosa (Common Beggar's Ticks)

Bidens laevis (Showy Bur-Marigold)

Bidens vulgata (Tall Beggar's Ticks)

Bignonia spp. (Crossvine)

Bignonia radicans (Trumpet Creeper)

Blephilia spp. (Wood Mint)

Blephilia hirsuta (Hairy Wood Mint)

Boehmeria cylindrica (False Nettle)

Bolboschoenus fluviatilis (River Bulrush)

Boltonia asteroides (False Aster)

Borago officinalis (Borage)

Bothriochloa saccharoides (Silver Beardgrass)

Bouteloua spp. (Grama Grass)

Bouteloua curtipendula (Side Oats Grama)

Bouteloua gracilis (Blue Grama)

Bouteloua hirsuta (Hairy Grama)

Brachyelytrum erectum (Long-Awned Wood Grass)

Brasenia schreberi (Water Shield)

Brassica spp. (Mustard)

Brassica juncea (Indian Mustard)

Brassica napus (Rapeseed)

Brassica nigra (Black Mustard)

Brassica oleracea (Broccoli, Wild Cabbage, etc.)

Brassica rapa (Field Mustard)

Brickellia eupatorioides (False Boneset)

Bromus spp. (Brome)

Bromus catharticus (Rescue Grass)

Bromus ciliatus (Fringed Brome)

Bromus commutatus (Meadow Brome)

Bromus diandrus (Ripgut Brome)

Bromus hordeaceus (Soft Brome)

Bromus inermis (Smooth Brome)

Bromus japonicus (Japanese Brome)

Bromus secalinus (Rye Brome)

Bromus sterilis (Poverty Brome)

Bromus tectorum (Downy Brome)

Buchloe dactyloides (Buffalo Grass)

Buchnera americana (Blue Hearts)

Bumelia spp. (Buckthorn)

Bumelia lanuginosa (Woolly Buckthorn)

Butomus umbellatus (Flowering Rush)

Cakile edentula (Sea Rocket)

Calamagrostis spp. (Reed Grass)

Calamagrostis canadensis (Bluejoint Grass)

Calamovilfa longifolia (Sand Reed)

Callirhoe spp. (Poppy Mallow)

Callirhoe triangulata (Clustered Poppy Mallow)

Callitriche spp. (Water Starwort)

Caltha palustris (Marsh Marigold)

Calylophus serrulatus (Toothed Evening Primrose)

Calystegia spp. (Bindweed)

Calystegia sepium (Hedge Bindweed)

Calystegia spithamaea (Erect Bindweed)

Camelina sativa (False Flax)

Campsis radicans (Trumpet Creeper)

Cannabis sativa (Marijuana)

Capsella bursa-pastoris (Shepherd's Purse)

Cardamine spp. (Bitter Cress)

Cardamine bulbosa (Spring Cress)

Cardamine douglasii (Purple Cress)

Cardamine hirsuta (Hairy Bittercress)

Cardamine parviflora arenicola (Small-flowered Bittercress)

Cardaria draba (Hoary Cress)

Carduus spp. (Musk Thistle)

Carduus acanthoides (Plumeless Thistle)

Carduus nutans (Nodding Thistle)

Carex spp. (Sedge)

Carex albursina (White Bear Sedge)

Carex alopecoidea (Foxtail Sedge)

Carex amphibola (Eastern Narrow-Leaved Sedge)

Carex blanda (Eastern Woodland Sedge)

Carex bromoides (Brome Sedge)

Carex cephalophora (Capitate Sedge)

Carex communis (Fibrous-rooted Sedge)

Carex comosa (Porcupine Sedge)

Carex crinita (Fringed Sedge)

Carex cristatella (Crested Sedge)

Carex crus-corvi (Crowfoot Sedge)

Carex haydenii (Hayden's Sedge)

Carex heliophila (Sun Sedge)

Carex hirtifollia (Hairy Sedge)

Carex hyalinolepis (Ditch Sedge)

Carex jamesii (James' Sedge)

Carex lacustris (Lake Sedge)

Carex limosa (Mud Sedge)

Carex lupuliformis (Hop-Like Sedge)

Carex lupulina (Hop Sedge)

Carex normalis (Greater Straw Sedge)

Carex pensylvanica (Pennsylvania Sedge)

Carex praegracilis (Expressway Sedge)

Carex rostrata (Beaked Sedge)

Carex shortiana (Short's Sedge)

Carex stricta (Tussock Sedge)

Carex torta (Twisted Sedge)

Carex tribuloides (Blunt Broom Sedge)

Carex trichocarpa (Plains Slough Sedge)

Carex utriculata (Beaked Sedge)

Carex vesicaria monile (Blister Sedge)

Carex viridula (Little Green Sedge)

Carex vulpinoidea (Brown Foxtail Sedge)

Carpinus spp. (Hornbeam)

Carpinus caroliniana (Musclewood)

Carum carvi (Caraway)

Carya spp. (Hickory)

Carya aquatica (Water Hickory)

Carya cordiformis (Bitternut Hickory)

Carya glabra (Pignut Hickory)

Carya illinoiensis (Pecan)

Carya laciniosa (Kingnut Hickory)

Carya ovalis (Sweet Pignut Hickory)

Carya ovata (Shagbark Hickory)

Carya tomentosa (Mockernut Hickory)

Castanea spp. (Chestnut)

Castanea dentata (American Chestnut)

Castanea mollissima (Chinese Chestnut)

Castanea pumila (Allegheny Chinkapin)

Castanea sativa (European Chestnut)

Castilleja spp. (Paintbrush, Painted Cup)

Catalpa spp. (Catalpa)

Catalpa bignonioides (Southern Catalpa)

Catalpa speciosa (Northern Catalpa)

Caulophyllum thalictroides (Blue Cohosh)

Ceanothus spp. (New Jersey Tea, Redroot)

Ceanothus americanus (New Jersey Tea)

Ceanothus herbaceus (Redroot)

Celastrus spp. (Bittersweet)

Celastrus orbiculatus (Oriental Bittersweet)

Celastrus scandens (American Bittersweet)

Celosia spp. (Celosia, Cockscomb)

Celtis spp. (Hackberry)

Celtis laevigata (Sugarberry)

Celtis occidentalis (Common Hackberry)

Celtis tenuifolia (Dwarf Hackberry)

Cenchrus spp. (Sandbur)

Centaurea spp. (Knapweed)

Centaurea cyanus (Bachelor's Buttons)

Centaurea jacea (Brown Knapweed)

Centaurea nigra (Black Knapweed)

Cephalanthus spp. (Buttonbush)

Cephalanthus occidentalis (Buttonbush)

Cerastium spp. (Mouse-Eared Chickweed)

Cerastium arvense (Field Chickweed)

Cerastium fontanum (Common Mouse-Eared Chickweed)

Cercis canadensis (Redbud)

Chaerophyllum spp. (Wild Chervil)

Chamaecrista spp. (Partridge Pea, Sensitive Plant)

Chamaecrista fasciculata (Partridge Pea)

Chamaecrista nictitans (Sensitive Plant)

Chamaedaphne calyculata (Leatherleaf)

Chamaemelum nobile (Garden Chamomile)

Chamaesyce spp. (Low Spurge)

Chamaesyce humistrata (Spreading Spurge)

Chamaesyce maculata (Prostrate Spurge)

Chelone spp. (Turtlehead)

Chelone glabra (White Turtlehead)

Chenopodium spp. (Goosefoot, Lamb's Quarters)

Chenopodium album (Lamb's Quarters)

Chenopodium botrys (Jerusalem Oak)

Chimaphila umbellata (Pipsissewa)

Chionanthus virginicus (Fringetree)

Chionodoxa spp. (Glory-of-the-Snow)

Chrysanthemum spp. (Chrysanthemum)

Chrysopsis spp. (Golden Aster)

Chrysopsis villosa (Golden Aster)

Cichorium intybus (Chicory)

Cicuta spp. (Water Hemlock)

Cicuta maculata (Water Hemlock)

Cimicifuga racemosa (Black Cohosh)

Cinna arundinacea (Stout Wood Reed)

Circaea alpina (Small Enchanter's Nightshade)

Circaea lutetiana (Enchanter's Nightshade)

Cirsium spp. (Thistle)

Cirsium altissimum (Tall Thistle)

Cirsium arvense (Canada Thistle)

Cirsium discolor (Pasture Thistle)

Cirsium hillii (Hill's Thistle)

Cirsium horridulum (Yellow Thistle)

Cirsium muticum (Swamp Thistle)

Cirsium undulatum (Wavy-Leaved Thistle)

Cirsium vulgare (Bull Thistle)

Citrullus lanatus (Watermelon)

Cladrastis kentukea (Yellow-Wood)

Clematis spp. (Clematis)

Clematis pitcheri (Pitcher's Leatherflower)

Clematis viorna (Leatherflower)

Cleome spp. (Cleome)

Cleome hassleriana (Spider Flower)

Cleome serrulata (Rocky Mountain Bee Plant)

Clintonia borealis (Bluebead Lily)

Clitoria mariana (Butterfly Pea)

Collinsonia spp. (Horsebalm)

Collinsonia canadensis (Richweed)

Comandra umbellata (Bastard Toadflax)

Comarum palustre (Marsh Cinquefoil)

Commelina communis (Asian Day Flower)

Commelina diffusa (Small Day Flower)

Commelina erecta (Prairie Day Flower)

Commelina virginica (Virginia Day Flower)

Comptonia peregrina (Sweetfern)

Conioselinum chinense (Hemlock Parsley)

Conium maculatum (Poison Hemlock)

Consolida spp. (Larkspur)

Convallaria majalis (Lily-of-the-Valley)

Convolvulus spp. (Bindweed)

Convolvulus arvensis (Field Bindweed)

Conyza spp. (Horseweed, Fleabane)

Conyza canadensis (Horseweed)

Coreopsis spp. (Coreopsis)

Coreopsis grandiflora (Large-Flowered Coreopsis)

Coreopsis lanceolata (Sand Coreopsis)

Coreopsis tinctoria (Plains Coreopsis)

Corispermum villosum (Hairy Bugseed)

Cornus spp. (Dogwood)

Cornus alternifolia (Pagoda Dogwood)

Cornus amomum (Swamp Dogwood)

Cornus canadensis (Bunchberry)

Cornus drummondii (Rough-Leaved Dogwood)

Cornus florida (Flowering Dogwood)

Cornus foemina (Stiff Dogwood)

Cornus mas (Cornelian Cherry)

Cornus obliqua (Silky Dogwood)

Cornus racemosa (Gray Dogwood)

Cornus rugosa (Round-Leaved Dogwood)

Cornus sericea (Red-Osier Dogwood)

Coronilla varia (Crown Vetch)

Coronopus spp. (Swine Cress)

Corydalis aurea (Golden Corydalis)

Corylus spp. (Hazelnut)

Corylus americana (American Hazelnut)

Corylus cornuta (Beaked Hazelnut)

Cosmos spp. (Cosmos)

Cotinus spp. (Smoketree)

Cotinus coggygria (European Smoketree)

Cotoneaster spp. (Cotoneaster)

Crataegus spp. (Hawthorn)

Crataegus calpodendron (Pear Hawthorn)

Crataegus crus-galli (Cockspur Hawthorn)

Crataegus margarettiae (Margaretta's Hawthorn)

Crataegus marshallii (Parsley Haw)

Crataegus mollis (Red Haw)

Crataegus punctata (Dotted Hawthorn)

Crataegus uniflora (Dwarf Hawthorn)

Crataegus viridis (Green Haw)

Crepis spp. (Hawksbeard)

Crepis tectorum (Narrow-Leaved Hawksbeard)

Crocus spp. (Crocus)

Crotalaria spp. (Rattlebox)

Crotalaria sagittalis (Rattlebox)

Croton spp. (Croton)

Croton capitatus (Woolly Croton)

Croton glandulosus (Sand Croton)

Croton monanthogynus (Prairie Tea)

Croton texensis (Texas Croton)

Crotonopsis elliptica (Elliptical Rushfoil)

Cryptotaenia canadensis (Honewort)

Cucumis melo (Muskmelon)

Cucumis sativus (Cucumber)

Cucurbita spp. (Gourds)

Cucurbita foetidissima (Buffalo Gourd)

Cucurbita pepo (Squash)

Cunila origanoides (Dittany)

Cuphea viscosissima (Clammy Cuphea)

Cuscuta spp. (Dodder)

Cycloloma atriplicifolium (Winged Pigweed)

Cydonia spp. (Quince)

Cydonia oblonga (Common Quince)

Cynodon dactylon (Bermuda Grass)

Cynoglossum spp. (Hound's Tongue)

Cynoglossum officinale (Hound's Tongue)

Cynoglossum virginianum (Wild Comfrey)

Cyperus spp. (Flat-Sedge)

Cyperus acuminatus (Tapertip Flat-Sedge)

Cyperus esculentus (Yellow Nut-Sedge)

Cyperus odoratus (Rusty Flat-Sedge)

Cystopteris spp. (Fragile Fern)

Cystopteris bulbifera (Bladder Fern)

Cystopteris fragilis (Brittle Fragile Fern)

Cytisus spp. (Broom)

Cytisus scoparius (Scotch Broom)

Dactylis glomerata (Orchard Grass)

Dalea spp. (Prairie Clover)

Dalea candida (White Prairie Clover)

Dalea purpurea (Purple Prairie Clover)

Dalea villosa (Silky Prairie Clover)

Danthonia spp. (Oat Grass)

Danthonia spicata (Poverty Oat Grass)

Dasistoma macrophylla (Mullein Foxglove)

Datura spp. (Datura)

Datura inoxia (Angel's Trumpet)

Datura stramonium (Jimsonweed)

Daucus spp. (Wild Carrot)

Daucus carota (Wild Carrot)

Daucus pusillus (American Wild Carrot)

Decodon verticillatus (Swamp Loosestrife)

Delphinium spp. (Delphinium, Larkspur)

Delphinium tricorne (Spring Larkspur)

Dennstaedtia punctilobula (Hay-Scented Fern)

Dentaria spp. (Toothwort)

Dentaria diphylla (Crinkleroot)

Dentaria laciniata (Cutleaf Toothwort)

Deparia acrostichoides (Silvery Spleenwort)

Deschampsia spp. (Hairgrass)

Deschampsia cespitosa (Tufted Hairgrass)

Descurainia spp. (Tansy Mustard)

Descurainia pinnata (Tansy Mustard)

Descurainia sophia (Flixweed)


Desmanthus illinoensis (Illinois Bundleflower)

Desmodium spp. (Tick Trefoil)

Desmodium canadense (Showy Tick Trefoil)

Desmodium canescens (Hoary Tick Trefoil)

Desmodium cuspidatum (Bracted Tick Trefoil)

Desmodium glabellum (Dillenius' Tick Trefoil)

Desmodium glutinosum (Pointed-Leaved Tick Trefoil)

Desmodium illinoense (Illinois Tick Trefoil)

Desmodium laevigatum (Smooth Tick Trefoil)

Desmodium obtusum (Obtuse-Leaved Tick Trefoil)

Desmodium paniculatum (Panicled Tick Trefoil)

Desmodium perplexum (Perplexing Tick Trefoil)

Desmodium sessilifolium (Sessile-Leaved Tick Trefoil)

Desmodium viridiflorum (Velvetleaf Tick Trefoil)

Dianthus spp. (Pink, Carnation)

Dichanthelium spp. (Panic Grass)

Dichanthelium acuminatum fasciculatum (Woolly Panic Grass)

Dichanthelium boscii (Bosc's Panic Grass)

Dichanthelium clandestinum (Deer-Tongue Grass)

Dichanthelium commutatum (Variable Panic Grass)

Dichanthelium dichotomum (Cypress Panic Grass)

Dichanthelium latifolium (Broad-Leaved Panic Grass)

Dichanthelium leibergii (Leiberg's Panic Grass)

Dichanthelium microcarpum (Small-Fruited Panic Grass)

Dichanthelium nitidum (Shiny Panic Grass)

Dichanthelium oligosanthes scribnerianum (Scribner's Panic Grass)

Dichanthelium polyanthes (Round-Seeded Panic Grass)

Dichanthelium scoparium (Velvet Panicum)

Dichanthelium villosissimum (Hairy Panic Grass)

Diervilla lonicera (Bush Honeysuckle)

Digitaria spp. (Crabgrass)

Digitaria filiformis (Slender Crabgrass)

Digitaria ischaemum (Smooth Crabgrass)

Digitaria sanguinalis (Common Crabgrass)

Diodia spp. (Buttonweed)

Diodia teres (Rough Buttonweed)

Diodia virginiana (Large Buttonweed)

Diospyros virginiana (Persimmon)

Diplazium pycnocarpon (Glade Fern)

Diplotaxis spp. (Rocket)

Dipsacus spp. (Teasel)

Dirca palustris (Leatherwood)

Distichlis spp. (Salt Grass)

Distichlis spicata stricta (Salt Grass)

Dodecatheon meadia (Shooting Star)

Doellingeria infirma (Cornel-Leaved Aster)

Doellingeria umbellata (Flat-Topped Aster)

Drosera rotundifolia (Round-Leaved Sundew)

Dryopteris spp. (Wood Fern, Shield Fern)

Dryopteris carthusiana (Toothed Wood Fern)

Dryopteris cristata (Crested Shield Fern)

Dryopteris marginalis (Marginal Shield Fern)

Dulichium spp. (Three-Way Sedge)

Dyssodia papposa (Fetid Marigold)

Echinacea spp. (Coneflower)

Echinacea angustifolia (Black Sampson)

Echinochloa spp. (Barnyard Grass)

Echinochloa crus-galli (Barnyard Grass)

Echinochloa frumentacea (Billion Dollar Grass)

Echinochloa muricata (Barnyard Grass)

Echinocystis lobata (Wild Cucumber)

Echinodorus spp. (Bur-Head)

Echinodorus cordifolius (Creeping Bur-Head)

Echium vulgare (Viper's Bugloss)

Eichhornia crassipes (Water Hyacinth)

Elaeagnus spp. (Oleaster)

Eleocharis spp. (Spike Rush)

Eleocharis elliptica (Elliptic Spike Rush)

Eleocharis erythropoda (Red-based Spike Rush)

Eleocharis macrostachya (Pale Spike Rush)

Eleocharis obtusa (Blunt Spike Rush)

Eleocharis palustris (Marsh Spike Rush)

Eleocharis parvula (Dwarf Spike Rush)

Elephantopus carolinianus (Elephant's Foot)

Eleusine indica (Goose Grass)

Elodea canadensis (Canadian Waterweed)

Elymus spp. (Wild Rye)

Elymus canadensis (Canada Wild Rye)

Elymus glaucus (Blue Wild Rye)

Elymus hystrix (Bottlebrush Grass)

Elymus longifolius (Squirreltail Grass)

Elymus pauciflorus subsecundus (Bearded Wheat Grass)

Elymus villosus (Silky Wild Rye)

Elymus virginicus (Virginia Wild Rye)

Elytrigia spp. (Wheat Grass)

Elytrigia dasystachya (Western Wheat Grass)

Elytrigia repens (Quack Grass)

Epigaea repens (Trailing Arbutus)

Epilobium spp. (Willow-Herb)

Epilobium angustifolium (Fireweed)

Epilobium ciliatum (Northern Willow-Herb)

Epilobium hirsutum (Hairy Willow-Herb)

Equisetum spp. (Horsetail)

Equisetum arvense (Field Horsetail)

Equisetum laevigatum (Smooth Horsetail)

Eragrostis spp. (Love Grass)

Eragrostis cilianensis (Stinking Love Grass)

Eragrostis minor (Lesser Love Grass)

Eragrostis pectinacea (Slender Love Grass)

Eragrostis spectabilis (Purple Love Grass)

Erechtites hieracifolia (Pilewort)

Erianthus spp. (Plume Grass)

Erianthus alopecuroides (Silver Plume Grass)

Erigeron spp. (Fleabane)

Erigeron annuus (Annual Fleabane)

Erigeron philadelphicus (Marsh Fleabane)

Erigeron strigosus (Daisy Fleabane)

Eriocaulon spp. (Pipewort)

Eriophorum spp. (Cotton Sedge)

Erodium cicutarium (Storksbill)

Eruca vesicaria sativa (Garden Rocket)

Erucastrum gallicum (Dog Mustard)

Eryngium spp. (Eryngo)

Eryngium yuccifolium (Rattlesnake Master)

Erysimum asperum (Western Wallflower)

Erysimum capitatum (Western Wallflower)

Erysimum cheiranthoides (Wormseed Mustard)

Erysimum inconspicuum (Small Wormseed Mustard)

Erysimum repandum (Treacle Mustard)

Eubotrys spp. (Doghobble)

Euonymus spp. (Euonymus)

Euonymus alatus (Winged Euonymus)

Euonymus atropurpureus (Wahoo)

Euonymus obovatus (Running Strawberry Bush)

Eupatoriadelphus spp. (Joe-Pye Weed)

Eupatoriadelphus fistulosus (Hollow-Stemmed Joe-Pye Weed)

Eupatoriadelphus maculatus (Spotted Joe-Pye Weed)

Eupatoriadelphus purpureus (Sweet Joe-Pye Weed)

Eupatorium spp. (Boneset)

Eupatorium hyssopifolium (Hyssop-Leaved Boneset)

Eupatorium perfoliatum (Common Boneset)

Eupatorium serotinum (Late Boneset)

Euphorbia spp. (Spurge)

Euphorbia corollata (Flowering Spurge)

Euphorbia cyparissias (Cypress Spurge)

Euphorbia esula (Leafy Spurge)

Euphorbia helioscopia (Wart Spurge)

Euphorbia marginata (Snow-on-the-Mountain)

Eurybia spp. (Aster)

Euthamia spp. (Grass-Leaved Goldenrod)

Euthamia graminifolia (Grass-Leaved Goldenrod)

Euthamia gymnospermoides (Plains Grass-Leaved Goldenrod)

Fagopyrum spp. (Buckwheat)

Fagopyrum esculentum (Buckwheat)

Fagus spp. (Beech)

Fagus grandifolia (American Beech)

Fallopia spp. (Climbing Buckwheat)

Fallopia convolvulus (Black Bindweed)

Fallopia scandens (Climbing Buckwheat)

Festuca spp. (Fescue)

Festuca arundinacea (Tall Fescue)

Festuca rubra (Red Fescue)

Festuca trachyphylla (Sheep Fescue)

Foeniculum vulgare (Fennel)

Fragaria spp. (Wild Strawberry, Strawberry)

Fragaria ananassa (Cultivated Strawberry)

Fragaria vesca (Hillside Strawberry)

Fragaria virginiana (Wild Strawberry)

Frangula spp. (Buckthorn)

Frasera caroliniensis (American Columbo)

Fraxinus spp. (Ash)

Fraxinus americana (White Ash)

Fraxinus nigra (Black Ash)

Fraxinus pennsylvanica (Red Ash, Green Ash)

Fraxinus quadrangulatus (Blue Ash)

Froelichia spp. (Cottonweed)

Froelichia floridana campestris (Large Cottonweed)

Galeopsis spp. (Hemp Nettle)

Galium spp. (Bedstraw)

Galium aparine (Cleavers)

Galium boreale (Northern Bedstraw)

Galium circaezans (Wild Licorice)

Galium mollugo (Hedge Bedstraw)

Galium verum (Yellow Bedstraw)

Gamochaeta spp. (Cudweed)

Gamochaeta purpurea (Early Cudweed)

Gaultheria spp. (Wintergreen, Checkerberry, Teaberry)

Gaura spp. (Gaura)

Gaura biennis (Biennial Gaura)

Gaura coccinea (Scarlet Gaura)

Gaura filipes (Slender Gaura)

Gaura parviflora (Small-Flowered Gaura)

Gaylussacia spp. (Huckleberry)

Gaylussacia baccata (Black Huckleberry)

Genista spp. (Broom)

Geranium spp. (Geranium)

Geranium carolinianum (Carolina Geranium)

Geranium maculatum (Wild Geranium)

Geranium robertianum (Herb Robert)

Geum spp. (Avens)

Geum canadense (White Avens)

Geum triflorum (Prairie Smoke)

Geum urbanum (Wood Avens)

Gladiolus spp. (Gladiolus)

Glandularia canadensis (Rose Vervain)

Glechoma hederacea (Ground Ivy)

Gleditsia spp. (Honey Locust)

Gleditisia aquatica (Water Locust)

Gleditsia triacanthos (Honey Locust)

Glyceria spp. (Manna Grass)

Glyceria grandis (American Manna Grass)

Glyceria obtusa (Atlantic Manna Grass)

Glyceria septentrionalis (Fowl Manna Grass)

Glyceria striata (Fowl Manna Grass)

Glycine max (Soybean)

Glycyrrhiza lepidota (Wild Licorice)

Gnaphalium spp. (Cudweed)

Gnaphalium uliginosum (Low Cudweed)

Gossypium spp. (Cotton)

Gossypium hirsutum (Cotton)

Grindelia spp. (Gumweed)

Grindelia squarrosa (Curlycup Gumweed)

Gutierrezia texana (Snakeweed)

Gymnocladus dioicus (Kentucky Coffee Tree)

Hackelia virginiana (Stickseed)

Hamamelis spp. (Witch Hazel)

Hamamelis virginiana (Witch Hazel)

Hedera helix (English Ivy)

Helenium spp. (Sneezeweed)

Helenium autumnale (Sneezeweed)

Helianthemum spp. (Frostweed)

Helianthus spp. (Sunflower)

Helianthus annuus (Annual Sunflower)

Helianthus atrorubens (Purple-Disk Sunflower)

Helianthus decapetalus (Ten-Petal Sunflower)

Helianthus divaricatus (Woodland Sunflower)

Helianthus giganteus (Giant Sunflower)

Helianthus grosseserratus (Sawtooth Sunflower)

Helianthus hirsutus (Hairy Sunflower)

Helianthus maximiliani (Maximilian's Sunflower)

Helianthus multiflorus (Many-Headed Sunflower)

Helianthus pauciflorus (Prairie Sunflower)

Helianthus petiolaris (Plains Sunflower)

Helianthus strumosus (Pale-Leaved Sunflower)

Helianthus tuberosus (Jerusalem Artichoke)

Heliopsis spp. (False Sunflower)

Heliopsis helianthoides (False Sunflower)

Heliotropium indicum (Indian Heliotrope)

Hemerocallis spp. (Day Lily)

Hepatica spp. (Hepatica)

Heracleum maximum (Cow Parsnip)

Hesperis matronalis (Dame's Rocket)

Heterostipa spp. (Porcupine Grass, Needle Grass)

Heterostipa comata (Needle-and-Thread)

Heterostipa spartea (Porcupine Grass)

Heuchera spp. (Alumroot)

Heuchera americana (Tall Alumroot)

Heuchera richardsonii (Prairie Alumroot)

Heuchera villosa (Hairy Alumroot)

Hibiscus spp. (Rose Mallow)

Hibiscus laevis (Halberd-Leaved Rose Mallow)

Hibiscus lasiocarpos (Hairy Rose Mallow)

Hibiscus moscheutos (Swamp Rose Mallow)

Hibiscus syriaca (Rose-of-Sharon)

Hieracium spp. (Hawkweed)

Hieracium caespitosum (Meadow Hawkweed)

Hieracium longipilum (Long-bearded Hawkweed)

Hieracium umbellatum (Northern Hawkweed)

Hieracium venosum (Rattlesnake Hawkweed)

Holcus lanatus (Velvet Grass)

Hordeum spp. (Barley, Wild Barley)

Hordeum jubatum (Foxtail Barley)

Hordeum pusillum (Little Barley)

Hordeum vulgare (Barley)

Houstonia spp. (Bluets)

Humulus spp. (Hops)

Humulus japonicus (Japanese Hops)

Humulus lupulus (Common Hops)

Hybanthus concolor (Green Violet)

Hydrangea spp. (Hydrangea)

Hydrangea arborescens (Wild Hydrangea)

Hydrocotyle spp. (Water Pennywort)

Hymenocallis caroliniana (Spider Lily)

Hymenopappus scabiosaeus (Old Plainsman)

Hyoscyamus niger (Black Henbane)

Hypericum spp. (St. John's Wort)

Hypericum densiflorum (Bushy St. John's Wort)

Hypericum kalmianum (Kalm's St. John's Wort)

Hypericum lobocarpum (Five-Lobed St. John's Wort)

Hypericum mitchellianum (Blue Ridge St. John's Wort)

Hypericum mutilum (Dwarf St. John's Wort)

Hypericum perforatum (Common St. John's Wort)

Hypericum prolificum (Shrubby St. John's Wort)

Hypericum punctatum (Spotted St. John's Wort)

Hypericum sphaerocarpum (Round-Fruited St. John's Wort)

Iberis spp. (Candytuft)

Ilex spp. (Holly)

Ilex decidua (Swamp Holly)

Ilex opaca (American Holly)

Ilex verticillata (Winterberry)

Impatiens spp. (Jewelweed)

Impatiens capensis (Orange Jewelweed)

Impatiens pallida (Yellow Jewelweed)

Inula helenium (Elecampane)

Ipomoea spp. (Morning Glory)

Ipomoea lacunosa (Small Morning Glory)

Ipomoea pandurata (Wild Sweet Potato)

Ipomoea purpurea (Common Morning Glory)

Iris spp. (Iris)

Iris versicolor (Northern Blue Flag)

Isatis tinctoria (Dyer's Woad)

Isoetes tenella (Spiny-Spored Quillwort)

Isoetes tuckermanii (Tuckerman's Quillwort)

Iva spp. (Marsh-Elder, Sumpweed)

Iva annua (Annual Marsh-Elder)

Iva xanthifolia (Giant Sumpweed)

Juglans spp. (Walnut)

Juglans cinerea (Butternut)

Juglans nigra (Black Walnut)

Juglans regia (English Walnut)

Juncus spp. (Rushes)

Juncus acuminatus (Pointed Rush)

Juncus balticus (Baltic Rush)

Juncus debilis (Weak Rush)

Juncus effusus (Soft Rush)

Juncus tenuis (Path Rush)

Juncus torreyi (Torrey's Rush)

Juniperus spp. (Juniper, Cedar)

Juniperus chinensis (Chinese Juniper)

Juniperus communis (Ground Juniper)

Juniperus horizontalis (Trailing Juniper)

Juniperus virginiana (Eastern Red Cedar)

Justicia spp. (Water Willow)

Kalmia angustifolia (Sheep Laurel)

Kalmia latifolia (Mountain Laurel)

Knautia arvensis (Field Scabiosa)

Kochia scoparia (Kochia)

Koeleria macrantha (June Grass)

Koelreuteria paniculata (Golden Rain Tree)

Krigia spp. (Dwarf Dandelion)

Kummerowia stipulacea (Korean Bush Clover)

Laburnum spp. (Laburnum, Golden Chain Tree)

Lactuca spp. (Wild Lettuce)

Lactuca biennis (Tall Blue Lettuce)

Lactuca canadensis (Wild Lettuce)

Lactuca pulchella (Wild Blue Lettuce)

Lactuca sativa (Garden Lettuce)

Lactuca serriola (Prickly Lettuce)

Lamium spp. (Dead Nettle)

Laportea canadensis (Wood Nettle)

Lappula occidentalis (Western Stickseed)

Lappula squarrosa (European Stickseed)

Lapsana communis (Nipplewort)

Larix spp. (Larch)

Larix decidua (European Larch)

Larix laricina (American Larch)

Lathyrus spp. (Vetchling)

Lathyrus maritimus (Beach Pea)

Lathyrus odoratus (Sweet Pea)

Lathyrus venosus (Veiny Pea)

Lechea spp. (Pinweed)

Ledum groenlandicum (Labrador Tea)

Leersia oryzoides (Rice Cutgrass)

Leersia virginica (White Grass)

Lemna spp. (Duckweed)

Lemna minor (Lesser Duckweed)

Lemna trisulca (Star Duckweed)

Leonurus spp. (Motherwort)

Lepidium spp. (Peppergrass)

Lepidium campestre (Field Peppergrass)

Lepidium densiflorum (Green-Flowered Peppergrass)

Lepidium ruderale (Stinking Peppergrass)

Lepidium sativum (Garden Peppergrass)

Lepidium virginicum (Common Peppergrass)

Leptochloa filiformis (Red Sprangletop)

Leptoloma cognatum (Fall Witch Grass)

Lespedeza spp. (Bush Clover)

Lespedeza capitata (Round-Headed Bush Clover)

Lespedeza cuneata (Chinese Bush Clover)

Lespedeza hirta (Hairy Bush Clover)

Lespedeza intermedia (Wand-Like Bush Clover)

Lespedeza repens (Creeping Bush Clover)

Lespedeza virginica (Slender Bush Clover)

Lesquerella ludoviciana (Silvery Bladderpod)

Leucanthemum spp. (Daisy)

Leucanthemum vulgare (Ox-Eye Daisy)

Leucothoe spp. (Doghobble)

Leymus spp. (Dune Grass)

Liatris spp. (Blazingstar)

Liatris squarrosa (Scaly Blazingstar)

Ligustrum spp. (Privet)

Ligustrum ovalifolium (Garden Privet)

Ligustrum vulgare (Common Privet)

Lilium spp. (Lily)

Lilium lancifolium (Tiger Lily)

Lilium philadelphicum (Prairie Lily)

Lilium superbum (Turk's Cap Lily)

Limnobium spongia (Sponge Plant)

Linaria spp. (Toadflax)

Linaria dalmatica (Dalmatian Toadflax)

Linaria vulgaris (Butter-and-Eggs)

Lindera benzoin (Spicebush)

Linnaea borealis (Twinflower)

Linum spp. (Flax)

Linum sulcatum (Grooved Yellow Flax)

Liquidambar styraciflua (Sweet Gum)

Liriodendron tulipifera (Tulip Tree)

Lithospermum spp. (Puccoon)

Lithospermum croceum (Yellow Puccoon)

Lithospermum incisum (Fringed Puccoon)

Lobelia cardinalis (Cardinal Flower)

Lobelia dortmanna (Water Lobelia)

Lobularia maritima (Sweet Alyssum)

Lolium spp. (Rye Grass)

Lolium multiflorum (Italian Rye Grass)

Lolium perenne (English Rye Grass)

Lonicera spp. (Honeysuckle)

Lonicera caprifolium (Italian Honeysuckle)

Lonicera flava (Yellow Honeysuckle)

Lonicera japonica (Japanese Honeysuckle)

Lonicera periclymenum (European Honeysuckle)

Lonicera sempervirens (Trumpet Honeysuckle)

Lonicera tartarica (Tartarian Honeysuckle)

Lonicera xylosteum (Dwarf Honeysuckle)

Lotus spp. (Trefoil)

Lotus corniculatus (Birdfoot Trefoil)

Ludwigia spp. (False Loosestrife)

Ludwigia alternifolia (Seedbox)

Ludwigia decurrens (Wing-Leaved Primrose Willow)

Ludwigia palustris (Marsh Purslane)

Ludwigia peploides glabrescens (Creeping Water Primrose)

Ludwigia polycarpa (False Loosestrife)

Ludwigia sphaerocarpa (Round-Podded Water Primrose)

Lunaria annua (Money Plant)

Lupinus spp. (Lupine)

Lupinus perennis (Wild Lupine)

Luzula spp. (Wood Rush)

Lycium barbarum (Common Matrimony Vine)

Lycopersicon esculentum (Tomato)

Lycopus spp. (Bugleweed)

Lycopus americanus (American Bugleweed)

Lycopus uniflorus (Northern Bugleweed)

Lycopus virginicus (Virginia Bugleweed)

Lyonia spp. (Staggerbush, Lyonia)

Lysimachia spp. (Loosestrife)

Lysimachia ciliata (Fringed Loosestrife)

Lysimachia lanceolata (Lance-Leaved Loosestrife)

Lysimachia nummularia (Moneywort)

Lysimachia quadrifolia (Whorled Loosestrife)

Lythrum spp. (Loosestrife)

Lythrum salicaria (Purple Loosestrife)

Machaeranthera spp. (Tansy Aster)

Maclura pomifera (Osage Orange)

Magnolia spp. (Magnolia)

Magnolia tripetala (Umbrella Tree)

Maianthemum spp. (Mayflower)

Maianthemum canadense (Canada Mayflower)

Maianthemum racemosum (False Solomon's Seal)

Malus spp. (Apple, Crab Apple)

Malus angustifolia (Southern Crab Apple)

Malus coronaria (Wild Crab Apple)

Malus ioensis (Prairie Crab Apple)

Malus pumila (Apple)

Malva spp. (Mallow)

Malva neglecta (Common Mallow)

Malva rotundifolia (Dwarf Mallow)

Malvastrum spp. (Globe Mallow)

Marrubium vulgare (Common Horehound)

Marsilea quadrifolia (Water Clover)

Matricaria spp. (Wild Chamomile)

Matteuccia struthiopteris (Ostrich Fern)

Matthiola incana (Stocks)

Medicago spp. (Medic)

Medicago lupulina (Black Medic)

Medicago sativa (Alfalfa)

Melampyrum lineare (Cow Wheat)

Melilotus spp. (Sweet Clover)

Melilotus alba (White Sweet Clover)

Melilotus officinalis (Yellow Sweet Clover)

Melothria pendula (Squirting Cucumber)

Menispermum canadense (Moonseed)

Mentha spp. (Mint)

Mentha arvensis (Field Mint)

Mentha gentilis (Red Mint)

Mentha piperita (Peppermint)

Mentha rotundifolia (Apple Mint)

Mentha spicata (Spearmint)

Mentzelia nuda (Bractless Stickleaf)

Menyanthes trifoliata (Bog Buckbean)

Mimulus spp. (Monkey Flower)

Mimulus glabratus jamesii (James' Monkeyflower)

Mimulus ringens (Allegheny Monkeyflower)

Mirabilis spp. (Four O'Clock)

Mirabilis nyctaginea (Wild Four O'Clock)

Moehringia spp. (Sandwort)

Monarda spp. (Bee Balm)

Monarda bradburiana (Bradbury's Bee Balm)

Monarda didyma (Oswego Tea)

Monarda fistulosa (Wild Bergamot)

Monarda punctata (Spotted Bee Balm)

Monotropa uniflora (Indian Pipe)

Morus spp. (Mulberry)

Morus alba (White Mulberry)

Muhlenbergia spp. (Muhly, Satin Grass)

Muhlenbergia cuspidata (Prairie Satin Grass)

Muhlenbergia frondosa (Common Satin Grass)

Muhlenbergia mexicana (Wire-Stem Muhly)

Muhlenbergia schreberi (Nimblewill)

Myosotis spp. (Forget-Me-Not)

Myosotis macrosperma (Big-Fruited Scorpion Weed)

Myosoton aquaticum (Water Chickweed)

Myrica spp. (Myrtle)

Myrica cerifera (Wax Myrtle)

Myrica gale (Sweet Gale)

Myriophyllum spp. (Water Milfoil)

Myriophyllum heterophyllum (Variable Water Milfoil)

Myriophyllum sibiricum (Northern Water Milfoil)

Najas guadalupensis (Southern Naiad)

Narcissus spp. (Narcissus)

Nassella spp. (Feathergrass)

Nassella viridula (Green Needlegrass)

Nasturtium spp. (Nasturtium)

Nasturtium officinale (Water Cress)

Nelumbo lutea (American Lotus)

Neobeckia aquatica (Lake Cress)

Nepeta spp. (Catmint)

Nepeta cataria (Catnip)

Neslia paniculata (Ball Mustard)

Nicandra physalodes (Shoofly Plant)

Nicotiana spp. (Tobacco)

Nicotiana rustica (Aztec Tobacco)

Nothocalais cuspidata (Prairie Dandelion)

Nuphar spp. (Pond Lily)

Nuphar lutea (Yellow Pond Lily)

Nuphar lutea advena (Spatterdock)

Nuphar lutea variegata (Bullhead Lily)

Nuttallanthus canadensis (Blue Toadflax)

Nymphaea spp. (Water Lily)

Nymphaea odorata (Fragrant Water Lily)

Nymphaea tuberosa (White Water Lily)

Nyssa spp. (Tupelo)

Nyssa sylvatica (Black Gum)

Oenanthe spp. (Water Dropwort)

Oenothera spp. (Evening Primrose)

Oenothera albicaulis (Prairie Evening Primrose)

Oenothera biennis (Common Evening Primrose)

Oenothera laciniata (Ragged Evening Primrose)

Oenothera parviflora (Small-Flowered Evening Primrose)

Oenothera rhombipetala (Sand Evening Primrose)

Oenothera speciosa (Showy Evening Primrose)

Oligoneuron spp. (Flat-Headed Goldenrod)

Oligoneuron ohioense (Ohio Goldenrod)

Oligoneuron rigidum (Stiff Goldenrod)

Onobrychis viciifolia (Common Sanfoin)

Onoclea sensibilis (Sensitive Fern)

Onopordum acanthium (Scotch Thistle)

Onosmodium spp. (Marbleseed)

Onosmodium molle (Marbleseed)

Opuntia spp. (Prickly Pear)

Opuntia humifusa (Eastern Prickly Pear)

Orbexilum pedunculatum (Sampson's Snakeroot)

Oryza sativa (Rice)

Oryzopsis spp. (Rice Grass)

Osmunda spp. (Osmunda Ferns)

Osmunda cinnamomea (Cinnamon Fern)

Osmunda regalis (Royal Fern)

Ostyra spp. (Hornbeam, Ironwood)

Ostrya virginiana (Ironwood)

Oxalis spp. (Wood Sorrel)

Oxalis stricta (Yellow Wood Sorrel)

Oxydendron arboreum (Sourwood)

Oxytropis spp. (Locoweed)

Paeonia officinalis (Common Peony)

Panicum spp. (Panic Grass)

Panicum capillare (Witch Grass)

Panicum dichotomiflorum (Fall Panicum)

Panicum miliaceum (Broomcorn Millet)

Panicum rigidulum (Munro Grass)

Panicum virgatum (Switchgrass)

Parietaria pensylvanica (Pennsylvania Pellitory)

Parthenocissus spp. (Woodbine)

Parthenocissus quinquefolia (Virginia Creeper)

Parthenocissus tricuspidata (Boston Ivy)

Paspalum spp. (Bead Grass)

Paspalum dilatatum (Dallis Grass)

Paspalum pubiflorum (Hairy-Seeded Bead Grass)

Paspalum setaceum (Slender Bead Grass)

Passiflora spp. (Passion Flower)

Passiflora incarnata (Purple Passion Flower)

Passiflora lutea (Creamy Passion Flower)

Pastinaca sativa (Wild Parsnip)

Pedicularis spp. (Betony, Lousewort)

Pedicularis canadensis (Wood Betony)

Pedicularis lanceolata (Swamp Betony)

Pediomelum argophyllum (Silver-Leaved Scurf-Pea)

Peltandra virginica (Arrow Arum)

Pennisetum spp. (Fountain Grass)

Pennisetum glaucum (Pearl Millet)

Penstemon spp. (Beardtongue, Penstemon)

Penstemon hirsutus (Hairy Penstemon)

Penstemon laevigatus (Smooth Penstemon)

Pentaphylloides floribunda (Shrubby Cinquefoil)

Perideridia spp. (Perideridia)

Perilla frutescens (Beefsteak Plant)

Persicaria spp. (Smartweed)

Persicaria amphibium (Water Smartweed)

Persicaria coccinea (Marsh Smartweed)

Persicaria densiflora (Southern Smartweed)

Persicaria hydropiper (Water Pepper)

Persicaria hydropiperoides (Mild Water Pepper)

Persicaria lapathifolia (Pale Smartweed)

Persicaria pensylvanica (Pennsylvania Smartweed)

Persicaria punctata (Dotted Smartweed)

Persicaria setacea (Slender Smartweed)

Persicaria vulgaris (Lady's Thumb)

Petasites hybridus (Common Butterbur)

Petroselinum crispum (Parsley)

Petunia hybrida (Garden Petunia)

Phacelia spp. (Phacelia)

Phacelia purshii (Miami Mist)

Phalaris spp. (Canary Grass)

Phalaris arundinacea (Reed Canary Grass)

Phalaris canariensis (Canary Grass)

Phalaris minor (Little-Seeded Canary Grass)

Phaseolus spp. (Wild Bean, Bean)

Phaseolus polystachios (Wild Bean)

Philadelphus coronarius (Sweet Mock Orange)

Phleum pratense (Timothy)

Phlox spp. (Phlox)

Phlox divaricata (Woodland Phlox)

Phlox subulata (Moss Phlox)

Phoradendron leucarpum (Mistletoe)

Phragmites spp. (Reed)

Phragmites australis (Common Reed)

Phryma leptostachya (Lopseed)

Physalis spp. (Ground Cherry)

Physalis alkekengi (Chinese Lanterns)

Physalis angulata (Cutleaf Ground Cherry)

Physalis heterophylla (Clammy Ground Cherry)

Physalis lanceolata (Narrow-Leaved Ground Cherry)

Physalis longifolia (Long-Leaved Ground Cherry)

Physalis philadelphica (Tomatillo)

Physalis pubescens (Annual Ground Cherry)

Physalis virginiana (Lance-Leaved Ground Cherry)

Physocarpus spp. (Ninebark)

Physocarpus opulifolius (Ninebark)

Physostegia angustifolia (Narrow-Leaved Obedient Plant)

Physostegia virginiana (Obedient Plant)

Picea spp. (Spruce)

Picea abies (Norway Spruce)

Picea canadensis (White Spruce)

Picea mariana (Black Spruce)

Picea pungens (Colorado Blue Spruce)

Picea rubens (Red Spruce)

Picris spp. (Oxtongue)

Pieris spp. (Fetterbush, Pieris)

Pilea spp. (Clearweed)

Pilea pumila (Clearweed)

Pimpinella anisum (Anise)

Pinus spp. (Pine)

Pinus banksiana (Jack Pine)

Pinus echinata (Shortleaf Pine)

Pinus mugo (Mugo Pine)

Pinus nigra (Austrian Pine)

Pinus pungens (Table Mountain Pine)

Pinus resinosa (Red Pine)

Pinus rigida (Pitch Pine)

Pinus strobus (White Pine)

Pinus sylvestris (Scots Pine)

Pinus taeda (Loblolly Pine)

Pinus virginiana (Scrub Pine)

Pisum sativum (Garden Pea)

Plantago spp. (Plantain)

Plantago aristata (Bracted Plantain)

Plantago lanceolata (English Plantain)

Plantago major (Broadleaf Plantain)

Plantago patagonica (Woolly Plantain)

Plantago rugelii (Black-Seeded Plantain)

Platanus spp. (Sycamore)

Platanus occidentalis (American Sycamore)

Pluchea camphorata (Camphorweed)

Poa spp. (Bluegrass)

Poa annua (Annual Bluegrass)

Poa compressa (Canada Bluegrass)

Poa pratensis (Kentucky Bluegrass)

Poa sylvestris (Woodland Bluegrass)

Podophyllum peltatum (Mayapple)

Poinsettia cyathospora (Wild Poinsettia)

Poinsettia dentata (Toothed Spurge)

Polanisia dodecandra trachysperma (Large-Flowered Clammyweed)

Polemonium reptans (Jacob's Ladder)

Polygonatum spp. (Solomon's Seal)

Polygonatum commutatum (Solomon's Seal)

Polygonum spp. (Knotweed)

Polygonum aviculare (Prostrate Knotweed)

Polymnia spp. (Polymnia)

Polymnia canadensis (Leafcup)

Polypodium spp. (Polypody)

Polypodium virginianum (Common Polypody, Rockcap Fern)

Polystichum acrostichoides (Christmas Fern)

Pontederia cordata (Pickerelweed)

Populus spp. (Poplar, Cottonwood, Aspen)

Populus alba (White Poplar)

Populus balsamifera (Balsam Poplar)

Populus deltoides (Eastern Cottonwood)

Populus gileadensis (Balm-of-Gilead)

Populus grandidentata (Big-Toothed Aspen)

Populus heterophylla (Swamp Cottonwood)

Populus nigra (Black Poplar)

Populus tremuloides (Quaking Aspen)

Portulaca spp. (Portulaca)

Portulaca oleracea (Purslane)

Potamogeton spp. (Pondweed)

Potamogeton alpinus (Northern Pondweed)

Potamogeton amplifolius (Broad-Leaved Pondweed)

Potamogeton berchtoldii (Berchtold's Pondweed)

Potamogeton diversifolius (Water-Thread Pondweed)

Potamogeton epihydrus (Ribbon-Leaved Pondweed)

Potamogeton foliosus (Leafy Pondweed)

Potamogeton friesii (Flat-Stalked Pondweed)

Potamogeton gramineus (Variable-Leaved Pondweed)

Potamogeton illinoensis (Illinois Pondweed)

Potamogeton natans (Floating-Leaved Pondweed)

Potamogeton nodosus (Long-Leaved Pondweed)

Potamogeton oakesianus (Oakes' Pondweed)

Potamogeton praelongus (White-Stemmed Pondweed)

Potamogeton pulcher (Spotted Pondweed)

Potamogeton pusillus (Small Pondweed)

Potamogeton richardsonii (Richardson's Pondweed)

Potamogeton robbinsii (Robbins' Pondweed)

Potamogeton zosteriformis (Flat-Stemmed Pondweed)

Potentilla spp. (Cinquefoil)

Potentilla canadensis (Dwarf Cinquefoil)

Potentilla intermedia (Intermediate Cinquefoil)

Potentilla norvegica (Rough Cinquefoil)

Potentilla recta (Sulfur Cinquefoil)

Potentilla simplex (Common Cinquefoil)

Prenanthes spp. (White Lettuce)

Prenanthes alba (White Lettuce)

Prenanthes altissima (Tall White Lettuce)

Prunus spp. (Cherry, Plum)

Prunus americana (Wild Plum)

Prunus angustifolia (Chickasaw Plum)

Prunus armeniaca (Apricot)

Prunus avium (Sweet Cherry)

Prunus cerasus (Sour Cherry)

Prunus domestica (European Plum)

Prunus mahaleb (Mahaleb Cherry)

Prunus nigra (Canada Plum)

Prunus padus (Bird Cherry)

Prunus pensylvanica (Pin Cherry)

Prunus persica (Peach)

Prunus serotina (Wild Black Cherry)

Prunus susquehanae (Sand Cherry)

Prunus triloba (Flowering Almond)

Prunus virginiana (Chokecherry)

Pseudognaphalium spp. (Cudweed)

Pseudognaphalium obtusifolium (Sweet Everlasting)

Psoralea esculenta (Breadroot Scurfpea)

Psoralidium tenuiflorum (Scurf Pea)

Ptelea trifoliata (Wafer Ash)

Pteridium aquilinum (Bracken Fern)

Puccinellia spp. (Alkali Grass)

Pueraria lobata (Kudzu Vine)

Pycnanthemum spp. (Mountain Mint)

Pycnanthemum tenuifolium (Slender Mountain Mint)

Pyrus spp. (Pear)

Pyrus communis (Pear)

Quercus spp. (Oak)

Quercus alba (White Oak)

Quercus bicolor (Swamp White Oak)

Quercus coccinea (Scarlet Oak)

Quercus ellipsoidalis (Hill's Oak)

Quercus falcata (Southern Red Oak)

Quercus ilicifolia (Bear Oak)

Quercus imbricaria (Shingle Oak)

Quercus lyrata (Overcup Oak)

Quercus macrocarpa (Bur Oak)

Quercus marilandica (Blackjack Oak)

Quercus michauxii (Swamp Chestnut Oak)

Quercus muhlenbergii (Chinkapin Oak)

Quercus nigra (Water Oak)

Quercus pagoda (Cherrybark Oak)

Quercus palustris (Pin Oak)

Quercus phellos (Willow Oak)

Quercus prinus (Rock Chestnut Oak)

Quercus robur (English Oak)

Quercus rubra (Northern Red Oak)

Quercus shumardii (Shumard's Oak)

Quercus stellata (Post Oak)

Quercus velutina (Black Oak)

Ranunculus spp. (Buttercup, Crowfoot)

Ranunculus acris (Tall Buttercup)

Ranunculus gmelinii (Small Yellow Water Crowfoot)

Raphanus spp. (Radish, Wild Radish)

Raphanus raphanistrum (Wild Radish)

Raphanus sativus (Radish)

Rapistrum rugosum (Wild Rape)

Ratibida spp. (Yellow Coneflower)

Ratibida columnifera (Long-headed Coneflower)

Ratibida pinnata (Yellow Coneflower)

Reseda alba (Mignonette)

Reynoutria japonica (Japanese Knotweed)

Rhamnus spp. (Buckthorn)

Rhamnus alnifolia (Alder Buckthorn)

Rhamnus cathartica (European Buckthorn)

Rhamnus lanceolata (Lance-Leaved Buckthorn)

Rheum rhaponticum (Rhubarb)

Rhexia spp. (Meadow Beauty)

Rhexia mariana (Maryland Meadow Beauty)

Rhexia virginica (Virginia Meadow Beauty)

Rhododendron spp. (Rhododendron, Azalea)

Rhododendron calendulaceum (Flame Azalea)

Rhododendron canescens (Sweet Mountain Azalea)

Rhododendron maximum (Rosebay Rhododendron)

Rhododendron periclymenoides (Pinkster Flower)

Rhododendron viscosum (Swamp Azalea)

Rhus spp. (Sumac)

Rhus aromatica (Fragrant Sumac)

Rhus copallina (Winged Sumac)

Rhus glabra (Smooth Sumac)

Rhus typhina (Staghorn Sumac)

Rhynchospora spp. (Beaked Rush)

Rhynchospora corniculata (Great Beaked Rush)

Ribes spp. (Currant, Gooseberry)

Ribes americanum (Wild Black Currant)

Ribes aureum (Golden Currant)

Ribes hirtellum (Northern Gooseberry)

Ribes missouriense (Missouri Gooseberry)

Ribes nigrum (Black Currant)

Ribes odoratum (Buffalo Currant)

Ribes rubrum (Red Currant)

Ricinus communis (Castor Bean)

Robinia spp. (Locust)

Robinia hispida (Bristly Locust)

Robinia pseudoacacia (Black Locust)

Rorippa spp. (Yellow Cress)

Rorippa palustris (Marsh Yellow Cress)

Rorippa sylvestris (Creeping Yellow Cress)

Rosa spp. (Wild Rose)

Rosa arkansana (Prairie Rose)

Rosa carolina (Pasture Rose)

Rosa multiflora (Multiflora Rose)

Rosa rugosa (Beach Rose)

Rosa setigera (Wild Climbing Rose)

Rubus spp. (Blackberry, Raspberry)

Rubus allegheniensis (Common Blackberry)

Rubus argutus (Highbush Blackberry)

Rubus flagellaris (Northern Dewberry)

Rubus frondosus (Leafy-Bracted Blackberry)

Rubus hispidus (Swamp Dewberry)

Rubus idaeus (Red Raspberry)


Rubus occidentalis (Black Raspberry)

Rubus odoratus (Purple-Flowering Raspberry)

Rubus pubescens (Dwarf Red Blackberry)

Rubus trivialis (Southern Dewberry)

Rudbeckia spp. (Coneflower, Black-Eyed Susan)

Rudbeckia hirta (Black-Eyed Susan)

Rudbeckia laciniata (Cutleaf Coneflower)

Rudbeckia missouriensis (Missouri Coneflower)

Rudbeckia triloba (Brown-Eyed Susan)

Ruellia spp. (Wild Petunia)

Ruellia caroliniensis (Carolina Wild Petunia)

Ruellia humilis (Hairy Wild Petunia)

Rumex spp. (Dock)

Rumex acetosa (Garden Sorrel)

Rumex acetosella (Sheep Sorrel)

Rumex altissimus (Pale Dock)

Rumex crispus (Curly Dock)

Rumex maritimus (Beach Dock)

Rumex obtusifolius (Bitter Dock)

Rumex orbiculatus (Great Water Dock)

Rumex patientia (Patience Dock)

Rumex verticillatus (Swamp Dock)

Sagina spp. (Pearlwort)

Sagittaria spp. (Arrowhead)

Sagittaria engelmanniana (Engelmann's Arrowhead)

Sagittaria filiformis (Threadleaf Arrowhead)

Sagittaria graminea (Grass-Leaved Arrowhead)

Sagittaria latifolia (Common Arrowhead)

Sagittaria rigida (Stiff Arrowhead)

Salix spp. (Willow)

Salix alba (White Willow)

Salix amygdaloides (Peach-Leaved Willow)

Salix babylonica (Weeping Willow)

Salix bebbiana (Bebb's Willow)

Salix caprea (Goat Willow)

Salix caroliniana (Ward's Willow)

Salix discolor (Pussy Willow)

Salix eriocephala (Broad-Leaved Willow)

Salix fragilis (Crack Willow)

Salix humilis (Prairie Willow)

Salix humilis tristis (Dwarf Prairie Willow)

Salix interior (Sandbar Willow)

Salix lucida (Shining Willow)

Salix nigra (Black Willow)

Salix pentandra (Bay-Leaved Willow)

Salix petiolaris (Meadow Willow)

Salix rigida (Heart-Leaved Willow)

Salix sericea (Silky Willow)

Salix syrticola (Dune Willow)

Salsola collina (Saltwort)

Salsola tragus (Russian Thistle)

Salvia spp. (Sage)

Salvia azurea (Wild Blue Sage)

Salvia officinalis (Garden Sage)

Sambucus spp. (Elderberry)

Sambucus canadensis (Common Elderberry)

Sambucus racemosa (Red Elderberry)

Sanguinaria canadensis (Bloodroot)

Sanicula spp. (Black Snakeroot)

Sanicula canadensis (Canada Black Snakeroot)

Saponaria spp. (Soapwort)

Saponaria officinalis (Soapwort)

Sarracenia purpurea (Northern Pitcher Plant)

Sassafras spp. (Sassafras)

Sassafras albidum (Sassafras)

Satureja hortensis (Summer Savory)

Saururus cernuus (Lizard's Tail)

Saxifraga spp. (Saxifrage)

Saxifraga michauxii (Michaux's Saxifrage)

Schedonnardus paniculatus (Tumble Grass)

Schizachne purpurascens (False Melic Grass)

Schizachyrium scoparium (Little Bluestem)

Schoenoplectus spp. (Bulrush)

Schoenoplectus acutus (Hardstem Bulrush)

Schoenoplectus fluviatilis (River Bulrush)

Schoenoplectus pungens (Three-Square)

Schoenoplectus tabernaemontani (Giant Bulrush)

Schrankia nuttallii (Sensitive Brier)

Scilla spp. (Squill)

Scirpus spp. (Bulrush)

Scirpus atrocinctus (Black-Girdle Bulrush)

Scirpus atrovirens (Dark Green Bulrush)

Scirpus cyperinus (Wool Grass)

Scirpus microcarpus (Small-Fruited Bulrush)

Scrophularia spp. (Figwort)

Scrophularia lanceolata (Early Figwort)

Scrophularia marilandica (Late Figwort)

Scutellaria spp. (Skullcap)

Scutellaria elliptica (Hairy Skullcap)

Scutellaria galericulata (Marsh Skullcap)

Scutellaria incana (Downy Skullcap)

Scutellaria lateriflora (Mad-Dog Skullcap)

Scutellaria nervosa (Veiny Skullcap)

Scutellaria ovata (Woodland Skullcap)

Scutellaria parvula (Small Skullcap)

Secale cereale (Rye)

Sedum spp. (Sedum)

Sedum reflexum (Rock Stonecrop)

Senecio spp. (Ragwort)

Senecio glabellus (Butterweed)

Senecio jacobaea (Tansy Ragwort)

Senecio obovatus (Spoon-Leaved Ragwort)

Senecio pauperculus (Balsam Ragwort)

Senecio vulgaris (Common Groundsel)

Senna spp. (Wild Senna)

Senna marilandica (Maryland Senna)

Senna obtusifolia (Sicklepod)

Senna occidentalis (Coffee Senna)

Sericocarpus asteroides (Toothed Whitetop Aster)

Sesbania herbacea (Coffeeweed)

Setaria spp. (Foxtail)

Setaria faberi (Giant Foxtail)

Setaria glauca (Yellow Foxtail)

Setaria italica (Italian Millet)

Setaria parviflora (Marsh Bristlegrass)

Setaria viridis (Green Foxtail)

Shepherdia canadensis (Buffalo Berry)

Sibara virginica (Virginia Rock Cress)

Sicyos angulatus (Bur Cucumber)

Sida spp. (Sida)

Silene spp. (Catchfly, Campion)

Silene pratensis (Evening Campion)

Silene vulgaris (Bladder Campion)

Silphium spp. (Silphium)

Silphium integrifolium (Rosinweed)

Silphium laciniatum (Compass Plant)

Silphium perfoliatum (Cup Plant)

Silphium terebinthinaceum (Prairie Dock)

Silybum spp. (Milk Thistle)

Sisymbrium spp. (Hedge Mustard)

Sisymbrium altissimum (Tumble Mustard)

Sisymbrium loeselii (Tall Hedge Mustard)

Sisymbrium officinale (Common Hedge Mustard)

Sium suave (Water Parsnip)

Smallanthus uvedalius (Bear's Foot)

Smilacina spp. (False Solomon's Seal)

Smilacina racemosa (False Solomon's Seal)

Smilax spp. (Greenbrier)

Smilax glauca (Glaucous Greenbrier)

Smilax rotundifolia (Common Greenbrier)

Smilax tamnoides hispida (Bristly Greenbrier)

Solanum spp. (Nightshade)

Solanum carolinense (Horsenettle)

Solanum dimidiatum (Torrey's Horsenettle)

Solanum dulcamara (Bittersweet Nightshade)

Solanum elaeagnifolium (Silverleaf Nightshade)

Solanum ptycanthum (Black Nightshade)

Solanum rostratum (Buffalo Bur)

Solanum sarachoides (Hairy Nightshade)

Solanum triflorum (Cut-Leaved Nightshade)

Solanum tuberosum (Potato)

Solidago spp. (Goldenrod)

Solidago altissima (Tall Goldenrod)

Solidago bicolor (Silver-Rod)

Solidago caesia (Blue-Stem Goldenrod)

Solidago canadensis (Canada Goldenrod)

Solidago drummondii (Drummond's Goldenrod)

Solidago flexicaulis (Zigzag Goldenrod)

Solidago gigantea (Giant Goldenrod)

Solidago juncea (Early Goldenrod)

Solidago missouriensis (Missouri Goldenrod)

Solidago mollis (Velvety Goldenrod)

Solidago nemoralis (Field Goldenrod)

Solidago patula (Swamp Goldenrod)

Solidago petiolaris (Downy Goldenrod)

Solidago radula (Rough Goldenrod)

Solidago rugosa (Rough-Leaved Goldenrod)

Solidago sempervirens (Seaside Goldenrod)

Solidago speciosa (Showy Goldenrod)

Solidago uliginosa (Bog Goldenrod)

Solidago ulmifolia (Elm-Leaved Goldenrod)

Sonchus spp. (Sow-Thistle)

Sonchus arvensis (Perennial Sowthistle)

Sonchus oleraceus (Common Sowthistle)

Sorbus spp. (Mountain Ash)

Sorbus americana (American Mountain Ash)

Sorghastrum nutans (Indian Grass)

Sorghum spp. (Sorghum)

Sorghum bicolor (Sorghum)

Sorghum halepense (Johnson Grass)

Sorghum sudanense (Sudan Grass)

Sparganium spp. (Bur-Reed)

Sparganium americanum (American Bur-Reed)

Sparganium androcladum (Branched Bur-Reed)

Sparganium angustifolium (Narrow-Leaved Bur-Reed)

Sparganium emersum (Green-Fruited Bur-Reed)

Sparganium eurycarpum (Giant Bur-Reed)

Spartina spp. (Cordgrass)

Spartina pectinata (Prairie Cordgrass)

Spergula spp. (Sand Spurrey)

Spergula arvensis (Corn Spurrey)

Sphaeralcea spp. (Globe-Mallow)

Sphaeralcea coccinea (Scarlet Globe-Mallow)

Spinacia oleracea (Spinach)

Spiraea spp. (Spiraea)

Spiraea alba (Meadowsweet)

Spiraea latifolia (Broad-Leaved Meadowsweet)

Spiraea salicifolia (Willowleaf Meadowsweet)

Spiraea vanhouttei (Spiraea)

Spirodela spp. (Greater Duckweed)

Sporobolus spp. (Dropseed)

Sporobolus asper (Tall Dropseed)

Sporobolus cryptandrus (Sand Dropseed)

Sporobolus heterolepis (Prairie Dropseed)

Sporobolus pyramidatus (Whorled Dropseed)

Stachys spp. (Hedge Nettle)

Staphylea spp. (Bladdernut)

Staphylea trifoliata (Bladdernut)

Stellaria spp. (Chickweed)

Stellaria graminea (Grass-Leaved Chickweed)

Stellaria media (Common Chickweed)

Strophostyles spp. (Fuzzy Bean)

Strophostyles helvula (Large Fuzzy Bean)

Strophostyles leiosperma (Small Fuzzy Bean)

Strophostyles umbellata (Sand Fuzzy Bean)

Stuckenia pectinata (Sago Pondweed)

Stylisma pickeringii pattersonii (Patterson's Dawnflower)

Stylosanthes biflora (Pencil Flower)

Styphnolobium japonicum (Japanese Pagoda Tree)

Suaeda spp. (Sea Blite)

Suaeda calceoliformis (Sea Blite)

Symphoricarpos spp. (Snowberry, etc.)

Symphoricarpos albus (Snowberry)

Symphoricarpos occidentalis (Wolfberry)

Symphoricarpos orbiculatus (Coralberry)

Symphyotrichum spp. (Aster)

Symphytum officinale (Common Comfrey)

Symplocarpus foetidus (Skunk Cabbage)

Synapis spp. (Mustard)

Synapis alba (White Mustard)

Synapis arvensis (Charlock)

Syringa spp. (Lilac)

Syringa vulgaris (Common Lilac)

Taenidia integerrima (Yellow Pimpernel)

Tagetes spp. (Cultivated Marigold)

Tanacetum spp. (Tansy)

Tanacetum parthenium (Feverfew)

Tanacetum vulgare (Common Tansy)

Taraxacum spp. (Dandelion)

Taraxacum officinale (Dandelion)

Taxodium spp. (Bald Cypress)

Taxodium distichum (Bald Cypress)

Taxus canadensis (Canada Yew)

Tephrosia virginiana (Goat's Rue)

Teucrium canadense (American Germander)

Thalia geniculata (Bent Alligator Flag)

Thalictrum spp. (Meadow Rue)

Thalictrum dasycarpum (Purple Meadow Rue)

Thalictrum pubescens (Tall Meadow Rue)

Thaspium spp. (Meadow Parsnip)

Thaspium barbinode (Hairy-Jointed Meadow Parsnip)

Thaspium trifoliatum (Meadow Parsnip)

Thelypteris spp. (Marsh Fern, New York Fern)

Thelypteris noveboracensis (New York Fern)

Thlaspi arvense (Field Pennycress)

Thuja spp. (Cedar, Arborvitae)

Thuja occidentalis (Northern White Cedar)

Tiarella cordifolia (Foamflower)

Tilia spp. (Linden, Basswood)

Tilia americana (American Basswood)

Torilis spp. (Hedge Parsley)

Toxicodendron pubescens (Poison Oak)

Toxicodendron radicans (Poison Ivy)

Toxicodendron vernix (Poison Sumac)

Trachelospermum difforme (Climbing Dogbane)

Tradescantia spp. (Spiderwort)

Tradescantia bracteata (Prairie Spiderwort)

Tradescantia ohiensis (Ohio Spiderwort)

Tradescantia subaspera (Zigzag Spiderwort)

Tradescantia virginiana (Virginia Spiderwort)

Tragopogon spp. (Goat's Beard)

Tragopogon dubius (Sand Goat's Beard)

Tragopogon pratensis (Yellow Goat's Beard)

Triadenum virginicum (Virginia Marsh St. John's Wort)

Trichostema spp. (Blue Curls)

Trichostema dichotomum (Blue Curls)

Tridens spp. (Purple-Top)

Tridens flavus (Purple-Top)

Trifolium spp. (Clover)

Trifolium campestre (Low Hop Clover)

Trifolium hybridum (Alsike Clover)

Trifolium incarnatum (Crimson Clover)

Trifolium medium (Zigzag Clover)

Trifolium pratense (Red Clover)

Trifolium repens (White Clover)

Triglochin spp. (Arrow-Grass)

Trigonella spp. (Fenugreek)

Trillium spp. (Trillium)

Triosteum spp. (Horse Gentian)

Tripleurospermum perforatum (Scentless Chamomile)

Tripsacum dactyloides (Gama Grass)

Triticum spp. (Wheat)

Triticum aestivum (Wheat)

Tropaeolum minus (Dwarf Nasturtium)

Tsuga spp. (Hemlock)

Tsuga canadensis (Eastern Hemlock)

Tulipa spp. (Tulip)

Tussilago farfara (Coltsfoot)

Typha spp. (Cattails)

Typha latifolia (Common Cattail)

Ulmus spp. (Elm)

Ulmus alata (Winged Elm)

Ulmus americana (American Elm)

Ulmus glabra (Scots Elm)

Ulmus parviflora (Chinese Elm)

Ulmus procera (English Elm)

Ulmus pumila (Siberian Elm)

Ulmus rubra (Slippery Elm)

Ulmus thomasii (Rock Elm)

Uniola latifolia (River Oats)

Urtica spp. (Nettles)

Urtica dioica (Stinging Nettle)

Urtica gracilis (Slender Stinging Nettle)

Utricularia spp. (Bladderwort)

Utricularia inflata (Swollen Bladderwort)

Utricularia macrorhiza (Common Bladderwort)

Vaccinium spp. (Blueberry, Cranberry)

Vaccinium angustifolium (Low-Bush Blueberry)

Vaccinium arboreum (Farkleberry)

Vaccinium corymbosum (High-bush Blueberry)

Vaccinium macrocarpum (Large Cranberry)

Vaccinium myrtilloides (Canada Blueberry)

Vaccinium oxycoccos (Small Cranberry)

Vaccinium pallidum (Low-Bush Blueberry)

Vaccinium stamineum (Deerberry)

Valeriana spp. (Valerian)

Valerianella spp. (Corn Salad)

Vallisneria americana (Water Celery)

Veratrum spp. (False Hellebore)

Verbascum spp. (Mullein)

Verbascum blattaria (Moth Mullein)

Verbascum thapsus (Great Mullein)

Verbena spp. (Vervain)

Verbena hastata (Blue Vervain)

Verbena stricta (Hoary Vervain)

Verbena urticaefolia (White Vervain)

Verbesina spp. (Crown-Beard)

Verbesina alternifolia (Wingstem)

Verbesina helianthoides (Yellow Crownbeard)

Verbesina virginica (Frostweed)

Vernonia spp. (Ironweed)

Vernonia baldwinii (Baldwin's Ironweed)

Vernonia fasciculata (Smooth Ironweed)

Vernonia gigantea (Tall Ironweed)

Vernonia missurica (Missouri Ironweed)

Veronica spp. (Speedwell)

Veronica anagallis-aquatica (Water Speedwell)

Veronica arvensis (Corn Speedwell)

Veronica beccabunga (European Speedwell)

Veronica peregrina (Purslane Speedwell)

Veronicastrum virginicum (Culver's Root)

Viburnum spp. (Viburnum, Arrow-Wood)

Viburnum acerifolium (Maple-Leaved Viburnum)

Viburnum cassinoides (Withe-Rod)

Viburnum dentatum (Arrow-Wood)

Viburnum dilatatum (Linden Arrow-Wood)

Viburnum lantana (Wayfaring Tree)

Viburnum lentago (Nannyberry)

Viburnum opulus (European Cranberry-Bush)

Viburnum prunifolium (Blackhaw Viburnum)

Viburnum rafinesquianum (Rafinesque's Arrow-Wood)

Viburnum recognitum (Smooth Arrow-Wood)

Viburnum trilobum (American Cranberry-Bush)

Vicia spp. (Vetch)

Vicia carolina (Carolina Vetch)

Vicia cracca (Cow Vetch)

Vicia villosa (Hairy Vetch)

Vigna spp. (Cow Pea)

Vigna unguiculata (Cow Pea)

Vinca spp. (Periwinkle)

Vinca major (Greater Periwinkle)

Viola spp. (Violet)

Viola bicolor (Field Pansy)

Viola fimbriatula (Sand Violet)

Viola lanceolata (Lance-leaved Violet)

Viola macloskeyi pallens (Northern White Violet)

Viola odorata (Sweet Violet)

Viola pedata (Bird's Foot Violet)

Viola primulifolia (Primrose Violet)

Viola rotundifolia (Round-leaved Violet)

Viola septentrionalis (Northern Blue Violet)

Viola sororia (Common Blue Violet)

Viola tricolor (Johnny Jump-Up)

Vitis spp. (Wild Grape)

Vitis aestivalis (Summer Grape)

Vitis labruscana (Labruscan Grape)

Vitis riparia (Riverbank Grape)

Vitis vulpina (Fox Grape)

Vulpia octoflora (Six-Weeks Fescue)

Wisteria spp. (Wisteria)

Xanthium spp. (Cocklebur)

Xanthium strumarium (Common Cocklebur)

Yucca spp. (Yucca)

Yucca smalliana (Eastern Yucca)

Zannichellia palustris (Horned Pondweed)

Zanthoxylum americanum (Prickly Ash)

Zea mays (Corn)


Zigadenus elegans glaucus (White Camass)

Zizania aquatica (Wild Rice)

Zizaniopsis miliacea (Southern Wild Rice)

Zizia spp. (Golden Alexanders)

Zizia aurea (Golden Alexanders)

Zoysia spp. (Zoysia)

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