| BOTANICAL NAME | COMMON NAME |
|---|---|
| Abies balsamea | balsam fir |
| Acalypha rhomboidea | common copperleaf |
| Acalypha virginica | three-seeded mercury |
| Acer negundo var. negundo | box elder |
| Acer nigrum | black maple |
| Acer pensylvanicum | striped maple, moosewood |
| Acer rubrum var. rubrum | red maple |
| Acer saccharinum | silver maple |
| Acer saccharum var. saccharum | sugar maple |
| Acer spicatum | mountain maple |
| Acer x freemanii | Freeman maple, soft maple |
| Acorus americanus | American sweetflag |
| Actaea pachypoda | white baneberry, doll’s-eyes |
| Actaea rubra | red baneberry |
| Actaea x ludovici | baneberry |
| Adiantum pedatum | northern maidenhair-fern |
| Adlumia fungosa | climbing fumitory, Allegheny vine |
| Agalinis paupercula var. paupercula | small-flowered false foxglove |
| Agalinis tenuifolia var. parviflora | slender-leaved false foxglove |
| Agalinis tenuifolia var. tenuifolia | slender false-foxglove |
| Agastache nepetoides | yellow giant hyssop |
| Agastache scrophulariifolia | purple giant hyssop |
| Ageratina altissima var. altissima | white snakeroot |
| Agrimonia gryposepala | tall hairy agrimony |
| Agrimonia parviflora | swamp agrimony |
| Agrimonia pubescens | soft groovebur |
| Agrimonia striata | woodland agrimony |
| Agrostis hyemalis | southern hairgrass, southern ticklegrass |
| Agrostis perennans | autumn bent, upland bent |
| Agrostis scabra | rough bentgrass |
| Alisma subcordatum | broad-leaved water-plantain |
| Alisma triviale | northern water-plantain |
| Allium canadense var. canadense | wild garlic, wild onion |
| Allium cernuum var. cernuum | nodding onion |
| Allium tricoccum var. tricoccum | small white leek, ramp |
| Alopecurus aequalis var. aequalis | short-awn foxtail |
| Amaranthus retroflexus | redroot pigweed,common amaranth |
| Ambrosia artemisiifolia | annual ragweed |
| Ambrosia trifida var. trifida | great ragweed |
| Amelanchier arborea var. arborea | downy serviceberry |
| Amelanchier humilis | running serviceberry |
| Amelanchier laevis | Allegheny service-berry |
| Amelanchier sanguinea | round-leaved shadbush |
| Ammophila breviligulata ssp. breviligulata | American beachgrass |
| Amphicarpaea bracteata | American hogpeanut |
| Anaphalis margaritacea | pearly everlasting |
| Andromeda polifolia var. glaucophylla | bog rosemary |
| Andropogon gerardii | big bluestem |
| Anemone acutiloba | sharp-lobed hepatica |
| Anemone americana | round-leaved liverleaf |
| Anemone canadensis | Canada anemone |
| Anemone cylindrica | long-fruited anemone, thimbleweed |
| Anemone quinquefolia var. quinquefolia | wood anemone, nightcaps |
| Anemone virginiana var. alba | tall thimbleweed |
| Anemone virginiana var. virginiana | tall thimbleweed, tall anemone |
| Angelica atropurpurea | great angelica |
| Angelica venenosa | hairy angelica |
| Antennaria howellii ssp. canadensis | Canadian pussytoes |
| Antennaria howellii ssp. neodioica | Howell’s pussytoes |
| Antennaria howellii ssp. petaloidea | petaloid pussytoes |
| Antennaria neglecta | field pussytoes |
| Antennaria parlinii ssp. fallax | Parlin’s pussytoes |
| Antennaria parlinii ssp. parlinii | Parlin’s pussytoes, lady’s tobacco |
| Antennaria plantaginifolia | plantain-leaved pussytoes |
| Apios americana | American groundnut |
| Aplectrum hyemale | puttyroot |
| Apocynum androsaemifolium | spreading dogbane |
| Apocynum cannabinum | clasping-leaved dogbane |
| Apocynum x floribundum | hybrid |
| Aquilegia canadensis | wild columbine, eastern columbine |
| Aralia hispida | bristly sarsaparilla |
| Aralia nudicaulis | wild sarsaparilla |
| Aralia racemosa ssp. racemosa | American spikenard |
| Aralia spinosa | Hercules club |
| Arctostaphylos uva-ursi | bearberry |
| Arethusa bulbosa | swamp-pink |
| Argentina anserina | silverweed cinquefoil |
| Arisaema dracontium | green dragon |
| Arisaema triphyllum ssp. stewardsonii | swamp jack-in-the-pulpit |
| Arisaema triphyllum ssp. triphyllum | common jack-in-the-pulpit |
| Aronia floribunda | purple chokeberry |
| Aronia melanocarpa | black chokeberry |
| Artemisia campestris ssp. caudata | field sagewort, field wormwood |
| Asarum canadense | wild ginger, asarabacca |
| Asclepias exaltata | poke milkweed |
| Asclepias incarnata ssp. incarnata | swamp milkweed |
| Asclepias quadrifolia | whorled milkweed |
| Asclepias syriaca | common milkweed |
| Asclepias tuberosa ssp. interior | butterfly-weed, butterfly milkweed |
| Asclepias variegata | white milkweed |
| Asclepias verticillata | whorled milkweed |
| Asimina triloba | pawpaw |
| Asplenium platyneuron var. platyneuron | ebony spleenwort |
| Asplenium rhizophyllum | walking-fern spleenwort |
| Asplenium trichomanes ssp. trichomanes | maidenhair spleenwort |
| Astragalus canadensis | Canadian milkvetch |
| Astragalus neglectus | cooper’s milkvetch |
| Athyrium filix-femina ssp. angustum | lady fern |
| Atriplex patula | halberd-leaved saltbush, spear orach |
| Aureolaria flava var. macrantha | smooth yellow false foxglove |
| Aureolaria pedicularia | fern-leaved yellow false foxglove |
| Aureolaria virginica | downy false-foxglove |
| Avenella flexuosa | wavy hair grass |
| Azolla cristata | eastern mosquito-fern |
| Bartonia virginica | yellow screwstem, bartonia |
| Betula alleghaniensis | yellow birch |
| Betula lenta | sweet birch, cherry birch |
| Betula populifolia | gray birch, white birch, fire birch |
| Bidens beckii | Beck’s water-marigold |
| Bidens bipinnata | Spanish-needles |
| Bidens cernua | nodding beggar-ticks |
| Bidens frondosa | devil’s beggar-ticks |
| Bidens laevis | smooth beggar-ticks, bur-marigold |
| Bidens trichosperma | crowned beggar-ticks |
| Bidens tripartita | three-lobed beggar-ticks |
| Bidens vulgata | tall beggar-ticks |
| Blephilia hirsuta | hairy woodmint |
| Boechera canadensis | sicklepod |
| Boechera laevigata | smooth rock-cress |
| Boehmeria cylindrica | false nettle, bog hemp |
| Bolboschoenus fluviatilis | river bulrush |
| Bolboschoenus maritimus ssp. paludosus | seaside bulrush, prairie bulrush |
| Botrychium dissectum | cut-leaved grape-fern |
| Botrychium lanceolatum ssp. angustisegmentum | lance-leaved grape-fern |
| Botrychium matricariifolium | chamomile grape-fern |
| Botrychium multifidum | leathery grape-fern |
| Botrychium oneidense | blunt-lobe grape-fern |
| Botrychium virginianum | rattlesnake fern |
| Brachyelytrum aristosum | northern long-awned wood grass |
| Brachyelytrum erectum | southern long-awned wood grass |
| Brasenia schreberi | water-shield, purple wen-dock |
| Bromus ciliatus | fringed brome |
| Bromus kalmii | wild chess |
| Bromus latiglumis | Canada brome |
| Bromus nottowayanus | satin brome, Virginia brome |
| Bromus pubescens | hairy wood brome grass |
| Buchnera americana | American bluehearts |
| Cakile edentula var. edentula | American searocket |
| Cakile edentula var. lacustris | American sea-rocket |
| Calamagrostis canadensis var. canadensis | blue-joint reedgrass |
| Calamintha arkansana | low calamint |
| Calla palustris | wild calla, water arum |
| Callitriche heterophylla ssp. heterophylla | diverse-leaved water-starwort |
| Callitriche palustris | vernal water-starwort |
| Calopogon tuberosus var. tuberosus | tuberous grass-pink |
| Caltha palustris | marsh marigold |
| Calystegia spithamaea ssp. spithamaea | low false bindweed |
| Campanula aparinoides | marsh bellflower |
| Campanula rotundifolia | American harebell |
| Campanulastrum americanum | tall bellflower |
| Capnoides sempervirens | pink corydalis, pale corydalis |
| Cardamine bulbosa | bulbous bitter-cress |
| Cardamine concatenata | cut-leaved toothwort |
| Cardamine diphylla | two-leaved toothwort |
| Cardamine douglassii | purple cress |
| Cardamine pensylvanica | Pennyslvania bitter-cress |
| Cardamine pratensis var. pratensis | cuckooflower |
| Cardamine rotundifolia | round-leaved water-cress |
| Carex aestivalis | summer sedge |
| Carex alata | broadwing sedge |
| Carex albicans var. albicans | bellow-beaked sedge |
| Carex albursina | white bear sedge |
| Carex annectens | yellow-fruited sedge |
| Carex appalachica | Appalachian sedge |
| Carex aquatilis var. aquatilis | water sedge |
| Carex arctata | drooping woodland sedge, black sedge |
| Carex atlantica ssp. atlantica | prickly bog sedge, Atlantic sedge |
| Carex aurea | golden-fruited sedge |
| Carex bebbii | Bebb’s sedge |
| Carex billingsii | Billings’ sedge |
| Carex blanda | woodland sedge |
| Carex brevior | fescue sedge |
| Carex bromoides ssp. bromoides | bromelike sedge |
| Carex brunnescens ssp. brunnescens | bromelike sedge |
| Carex canescens ssp. canescens | hoary sedge, silvery sedge |
| Carex cephaloidea | thin-leaved sedge |
| Carex cephalophora | oval-leaved sedge |
| Carex communis var. communis | fibrous-root sedge |
| Carex comosa | bristly sedge |
| Carex crinita var. crinita | fringed sedge |
| Carex cristatella | crested sedge |
| Carex cryptolepis | northeastern sedge |
| Carex davisii | Davis’ sedge |
| Carex debilis var. rudgei | white-edged sedge, weak sedge |
| Carex deweyana var. deweyana | Dewey’s sedge |
| Carex digitalis var. digitalis | slender woodland sedge |
| Carex disperma | soft-leaved sedge |
| Carex eburnea | bristle-leaved sedge |
| Carex echinata ssp. echinata | little prickly sedge |
| Carex flava | yellow sedge |
| Carex folliculata | long sedge |
| Carex garberi | elk sedge |
| Carex gracilescens | slender sedge |
| Carex gracillima | graceful sedge |
| Carex granularis | limestone meadow sedge |
| Carex grayi | Gray’s sedge |
| Carex grisea | eastern narrow-leaved sedge, gray sedge |
| Carex hirsutella | hirsute sedge |
| Carex hirtifolia | pubescent sedge |
| Carex hitchcockiana | Hitchcock’s sedge |
| Carex hystericina | porcupine sedge |
| Carex interior | inland sedge |
| Carex lacustris | lake-bank sedge |
| Carex laevivaginata | smooth-sheathed sedge |
| Carex lasiocarpa ssp. americana | American woollyfruit sedge |
| Carex laxiculmis var. laxiculmis | spreading sedge |
| Carex laxiflora | broad loose-flowered sedge |
| Carex leptalea | bristly-stalked sedge |
| Carex leptonervia | finely-nerved sedge |
| Carex limosa | mud sedge |
| Carex lupulina | hop sedge |
| Carex lurida | shallow sedge |
| Carex meadii | Mead’s sedge |
| Carex normalis | greater straw sedge |
| Carex novae-angliae | New England sedge |
| Carex oligocarpa | eastern few-fruited sedge |
| Carex oligosperma | few-seeded sedge |
| Carex pallescens | pale sedge |
| Carex pauciflora | few-flowered sedge |
| Carex pedunculata | pedunculate sedge, long-stalked sedge |
| Carex pellita | woolly sedge |
| Carex pensylvanica | Pennsylvania sedge |
| Carex plantaginea | plantain-leaved sedge |
| Carex platyphylla | broad-leaved sedge |
| Carex prasina | drooping sedge |
| Carex projecta | necklace sedge |
| Carex pseudocyperus | cyperus-like sedge |
| Carex radiata | stellate sedge |
| Carex retroflexa | reflexed sedge |
| Carex retrorsa | retrorse sedge |
| Carex rosea | rosy sedge |
| Carex sartwellii | Sartwell’s sedge |
| Carex scabrata | rough sedge |
| Carex schweinitzii | Schweinitz’s sedge |
| Carex scoparia var. scoparia | broom sedge |
| Carex seorsa | weak stellate sedge |
| Carex siccata | dryspike sedge |
| Carex sparganioides | bur-reed sedge |
| Carex stipata var. stipata | owlfruit sedge, stalk-grained sedge |
| Carex styloflexa | bent sedge |
| Carex swanii | swan sedge |
| Carex tenera | quill sedge |
| Carex tenuiflora | sparse-flowered sedge |
| Carex tetanica | rigid sedge |
| Carex torta | twisted sedge |
| Carex tribuloides var. tribuloides | blunt broom sedge |
| Carex trichocarpa | hairy-fruited sedge |
| Carex trisperma | three-seeded sedge |
| Carex tuckermanii | Tuckerman’s sedge |
| Carex virescens | ribbed sedge |
| Carex viridula ssp. viridula | little green sedge, greenish sedge |
| Carex vulpinoidea | fox sedge |
| Carex woodii | pretty sedge |
| Carpinus caroliniana ssp. virginiana | American hornbeam, blue beech, musclewood, ironwood |
| Carya alba | mockernut hickory |
| Carya cordiformis | bitternut hickory |
| Carya glabra | pignut hickory, sweet pignut |
| Carya laciniosa | shellbark hickory, kingnut |
| Carya ovalis | red hickory |
| Carya ovata | shagbark hickory, shellbark hickory |
| Castanea dentata | American chestnut |
| Castilleja coccinea | scarlet Indian-paintbrush |
| Ceanothus americanus | New Jersey tea |
| Celastrus scandens | American bittersweet, climbing bittersweet |
| Celtis occidentalis | common hackberry |
| Cenchrus longispinus | long-spine sandbur |
| Cephalanthus occidentalis | common buttonbush |
| Cerastium nutans var. nutans | nodding chickweed |
| Ceratophyllum demersum | common coontail, common hornwort |
| Chamaecrista fasciculata | prairie senna |
| Chamaedaphne calyculata | leatherleaf |
| Chamaelirium luteum | devil’s-bit, fairy-wand, |
| Chamerion angustifolium ssp. circumvagum | fireweed |
| Chelone glabra | white turtlehead |
| Chenopodium simplex | giant-seeded goosefoot |
| Chimaphila maculata | spotted wintergreen |
| Chimaphila umbellata ssp. cisatlantica | common wintergreen |
| Chrysosplenium americanum | American golden-saxifrage |
| Cicuta bulbifera | bulb-bearing water-hemlock |
| Cicuta maculata var. maculata | spotted water hemlock, poison hemlock, |
| Cimicifuga racemosa | black snakeroot, black cohosh, black bugbane |
| Cinna arundinacea | sweet woodreed, wood reedgrass, stout woodreed |
| Cinna latifolia | slender wood reedgrass |
| Circaea alpina | northern enchanter’s nightshade |
| Circaea x intermedia | intermediate enchanter’s nightshade |
| Cirsium discolor | field thistle |
| Cirsium muticum | swamp thistle, dunce-nettle, horsetops |
| Cirsium pumilum var. pumilum | pasture thistle |
| Cladium mariscoides | twig rush |
| Claytonia caroliniana | Carolina spring-beauty |
| Claytonia virginica var. virginica | Virginia springbeauty, eastern spring beauty |
| Clematis virginiana | Virginia virgin-bower |
| Clintonia borealis | blue bead-lily, corn-lily, Clinton lily |
| Clintonia umbellulata | white clintonia, sPeckled wood-lily |
| Collinsia verna | spring blue-eyed mary |
| Collinsonia canadensis | Canada horse-balm |
| Comandra umbellata ssp. umbellata | bastard toadflax |
| Comarum palustre | marsh cinquefoil, purple cinquefoil |
| Comptonia peregrina | sweet fern |
| Conioselinum chinense | hemlock parsley |
| Conopholis americana | squaw-root |
| Conyza canadensis var. canadensis | Canadian horseweed |
| Coptis trifolia | goldthread, goldenroot, yellow snakeroot |
| Corallorhiza maculata var. maculata | spotted coralroot |
| Corallorhiza odontorhiza var. odontorhiza | autumn coral-root |
| Corallorhiza trifida | early coralroot, northern coral-root |
| Cornus alternifolia | alternate-leaved dogwood |
| Cornus amomum ssp. amomum | silky dogwood |
| Cornus amomum ssp. obliqua | pale dogwood, narrow-leaved dogwood |
| Cornus canadensis | bunchberry, dwarf dogwood, |
| Cornus drummondii | northern rough-leaved dogwood |
| Cornus florida | flowering dogwood |
| Cornus racemosa | gray dogwood |
| Cornus rugosa | round-leaved dogwood |
| Cornus sericea ssp. sericea | red osier dogwood |
| Corylus americana | American hazelnut |
| Corylus cornuta ssp. cornuta | beaked hazelnut, beaked hazel |
| Crataegus calpodendron | pear hawthorn |
| Crataegus chrysocarpa | fineberry hawthorn |
| Crataegus coccinea | scarlet hawthorn |
| Crataegus compta | hawthorn |
| Crataegus crus-galli | cockspur hawthorn |
| Crataegus jesupii | hawthorn |
| Crataegus macrosperma | hawthorn |
| Crataegus macrosperma x pruinosa | hawthorn |
| Crataegus pringlei | hawthorn |
| Crataegus pruinosa | waxy-fruited hawthorn |
| Crataegus punctata | dotted hawthorn |
| Crataegus scabrida | hawthorn |
| Crataegus schuettei | Schuette’s hawthorn |
| Crataegus suborbiculata | hawthorn |
| Crataegus succulenta | fleshy hawthorn |
| Crocanthemum canadense | long-branched frostweed |
| Cryptotaenia canadensis | Canada honewort |
| Cuscuta campestris | field dodder |
| Cuscuta gronovii var. gronovii | Gronovius dodder, scaldweed, common dodder |
| Cynoglossum virginianum var. boreale | northern wild comfrey |
| Cyperus bipartitus | slender flatsedge, shining flatsedge |
| Cyperus diandrus | umbrella flatsedge |
| Cyperus erythrorhizos | redroot flatsedge |
| Cyperus odoratus | fragrant flatsedge, rusty flatsedge |
| Cyperus schweinitzii | Schweinitz’s flatsedge |
| Cyperus strigosus | straw-colored flatsedge, false nutsedge |
| Cypripedium acaule | pink lady’s-slipper, pink moccasin-flower |
| Cypripedium candidum | small white lady’s-slipper |
| Cypripedium parviflorum var. parviflorum | small yellow lady’s-slipper |
| Cypripedium parviflorum var. pubescens | large yellow lady’s-slipper |
| Cypripedium reginae | showy lady’s-slipper |
| Cystopteris bulbifera | bulblet fern |
| Cystopteris fragilis | fragile fern |
| Cystopteris protrusa | lowland brittle fern |
| Cystopteris tenuis | Mackay’s fragile fern |
| Dalibarda repens | robin runaway, false-violet, dewdrop |
| Danthonia compressa | flattened oatgrass |
| Danthonia spicata | poverty oatgrass |
| Decodon verticillatus | hairy swamp loosestrife |
| Dendrolycopodium dendroideum | treelike clubmoss |
| Dendrolycopodium obscurum | ground pine, eastern tree clubmoss |
| Dennstaedtia punctilobula | eastern hay-scented fern |
| Deparia acrostichoides | silvery spleenwort |
| Descurainia pinnata ssp. brachycarpa | northern tansy-mustard |
| Desmodium canadense | showy tick-trefoil |
| Desmodium ciliare | hairy small-leaved tick-trefoil |
| Desmodium cuspidatum | toothed tick-trefoil |
| Desmodium paniculatum | narrow-leaved tick-trefoil |
| Desmodium rotundifolium | prostrate tick-trefoil |
| Dicentra canadensis | squirrel-corn, turkey-corn |
| Dicentra cucullaria | Dutchman’s breeches |
| Dichanthelium acuminatum ssp. fasciculatum | slender-stemmed panicgrass |
| Dichanthelium boreale | northern witchgrass |
| Dichanthelium clandestinum | deer-tongue witchgrass |
| Dichanthelium commutatum ssp. ashei | variable witchgrass |
| Dichanthelium dichotomum ssp. dichotomum | forked panicgrass |
| Dichanthelium linearifolium | slim-leaved witchgrass |
| Dichanthelium oligosanthes ssp. scribnerianum | Scribner’s panic grass |
| Diervilla lonicera | northern bush-honeysuckle |
| Dioscorea villosa | yellow yam, wild yam, yam root, colic root |
| Diphasiastrum digitatum | fan club-moss |
| Diphasiastrum tristachyum | blue ground-cedar, deep-root clubmoss |
| Diplazium pycnocarpon | glade fern |
| Dirca palustris | eastern leatherwood |
| Doellingeria infirma | cornel-leaved aster |
| Doellingeria umbellata var. umbellata | tall flat-topped white aster, parasol whitetop |
| Draba arabisans | rock whitlow-grass |
| Drosera intermedia | spoon-leaved sundew |
| Drosera rotundifolia var. rotundifolia | round-leaved sundew |
| Dryopteris carthusiana | spinulose shield fern, spinulose wood fern |
| Dryopteris clintoniana | Clinton’s wood fern |
| Dryopteris cristata | crested shield-fern |
| Dryopteris goldiana | Goldie’s woodfern |
| Dryopteris intermedia ssp. intermedia | evergreen woodfern |
| Dryopteris marginalis | marginal wood fern |
| Dryopteris x triploidea | wood fern |
| Dulichium arundinaceum var. arundinaceum | threeway sedge |
| Echinochloa muricata var. microstachya | rough barnyard grass |
| Echinocystis lobata | wild cucumber |
| Eleocharis acicularis | needle spike-rush |
| Eleocharis elliptica | slender spike-rush |
| Eleocharis erythropoda | bald spike-rush |
| Eleocharis obtusa | blunt spike-rush |
| Eleocharis ovata | ovate spike-rush |
| Eleocharis palustris | creeping spike-rush, common spike-rush |
| Elodea canadensis | common waterweed, broad waterweed |
| Elymus canadensis var. canadensis | Canada wildrye |
| Elymus hystrix var. bigeloviana | bottlebrush grass |
| Elymus hystrix var. hystrix | eastern bottle-brush grass |
| Elymus riparius | river wild-rye |
| Elymus trachycaulus ssp. subsecundus | slender wheatgrass |
| Elymus villosus var. villosus | hairy wildrye |
| Elymus virginicus var. virginicus | Virginia wild rye |
| Elymus wiegandii | Wiegand’s wild rye |
| Enemion biternatum | false rue-anemone |
| Epifagus virginiana | beechdrops |
| Epigaea repens | trailing arbutus |
| Epilobium ciliatum ssp. ciliatum | hairy willow-herb |
| Epilobium coloratum | eastern willow-herb |
| Epilobium strictum | downy willow-herb |
| Equisetum arvense | field horsetail, common horsetail |
| Equisetum fluviatile | water horsetail, river horsetail |
| Equisetum hyemale ssp. affine | scouring rush |
| Equisetum palustre | marsh horsetail |
| Equisetum scirpoides | dwarf scouring rush |
| Equisetum sylvaticum | woodland horsetail |
| Equisetum variegatum ssp. variegatum | variegated horsetail |
| Eragrostis capillaris | tiny love-grass |
| Eragrostis frankii | Frank’s love-grass |
| Eragrostis pectinacea var. pectinacea | lovegrass |
| Erechtites hieraciifolius var. hieraciifolius | American burnweed, fireweed |
| Erigenia bulbosa | harbinger-of-spring, pepper-and-salt |
| Erigeron annuus | white-topped fleabane, Easter daisy fleabane |
| Erigeron philadelphicus var. philadelphicus | Philadelphia fleabane |
| Erigeron pulchellus var. pulchellus | robin’s plantain |
| Erigeron strigosus var. strigosus | prairie fleabane |
| Eriophorum gracile | slender cotton-grass |
| Eriophorum vaginatum | tussock cotton-grass |
| Eriophorum virginicum | tawny cotton-grass |
| Eriophorum viridicarinatum | green keeled cotton-grass |
| Erythronium albidum | white trout-lily |
| Erythronium americanum ssp. americanum | yellow trout-lily |
| Euonymus americanus | strawberry bush |
| Euonymus atropurpureus var. atropurpureus | eastern wahoo |
| Euonymus obovatus | running strawberry bush |
| Eupatorium perfoliatum | common boneset |
| Eupatorium sessilifolium var. brittonianum | upland boneset |
| Euphorbia corollata | flowering spurge |
| Euphorbia maculata | spotted spurge |
| Euphorbia polygonifolia | seaside spurge |
| Euphorbia vermiculata | worm seeded spurge |
| Eurybia divaricata | white wood-aster |
| Eurybia macrophylla | large-leaved aster |
| Euthamia graminifolia | flat-toppedgoldenrod, grass-leaved goldenrod |
| Eutrochium maculatum var. maculatum | spotted Joe-Pye weed |
| Eutrochium purpureum var. purpureum | sweet-scented Joe-Pye weed |
| Fagus grandifolia | American beech |
| Fallopia cilinodis | fringed black bindweed |
| Fallopia scandens var. scandens | climbing false buckwheat |
| Festuca subverticillata | nodding fescue |
| Floerkea proserpinacoides | false mermaid-weed |
| Fragaria vesca ssp. americana | woodland strawberry |
| Fragaria virginiana | wild strawberry |
| Frasera caroliniensis | Carolina gentian |
| Fraxinus americana | white ash |
| Fraxinus nigra | black ash |
| Fraxinus pennsylvanica | green ash |
| Galearis spectabilis | showy orchis |
| Galium aparine | cleavers |
| Galium asprellum | rough bedstraw |
| Galium boreale | northern bedstraw |
| Galium circaezans var. circaezans | licorice bedstraw |
| Galium lanceolatum | Torrey’s wild licorice |
| Galium obtusum | blunt-leaved bedstraw |
| Galium palustre | marsh bedstraw |
| Galium tinctorium | stiff marsh bedstraw |
| Galium trifidum ssp. trifidum | small bedstraw, three petal bedstraw |
| Galium triflorum | fragrant bedstraw, sweet-scented bedstraw |
| Gaultheria hispidula | creeping snowberry |
| Gaultheria procumbens | teaberry |
| Gaylussacia baccata | black huckleberry |
| Gentiana andrewsii | fringe-topped bottle gentian |
| Gentiana clausa | closed gentian |
| Gentiana linearis | narrow-leaved gentian |
| Gentiana puberulenta | downy gentian |
| Gentiana saponaria | soapwort gentian, soap gentian, harvestbells |
| Gentianella quinquefolia ssp. quinquefolia | stiff gentian, agueweed, gall-of-the-earth |
| Gentianopsis crinita | greater fringed gentian |
| Gentianopsis virgata | lesser fringed gentian |
| Geranium bicknellii | Bicknell’s cranesbill, Bicknell’s geranium |
| Geranium carolinianum | Carolina cranesbill, Carolina geranium |
| Geranium maculatum | wild crane’s-bill |
| Geranium robertianum | herb-Robert, Robert’s geranium |
| Geum aleppicum | yellow avens |
| Geum canadense | white avens |
| Geum laciniatum | rough avens |
| Geum rivale | purple avens |
| Geum virginianum | cream avens |
| Glyceria borealis | small floating manna grass |
| Glyceria canadensis | Canada manna grass |
| Glyceria grandis var. grandis | American manna grass, giant manna grass |
| Glyceria melicaria | slender manna grass |
| Glyceria septentrionalis var. septentrionalis | floating manna grass |
| Glyceria striata | fowl manna grass |
| Glycyrrhiza lepidota | wild licorice |
| Goodyera pubescens | downy rattlesnake-plantain |
| Goodyera repens | dwarf rattlesnake-plantain, lesser rattlesnake-plantain |
| Gratiola neglecta | clammy hedge-hyssop |
| Gymnocarpium dryopteris | northern oak fern |
| Hackelia virginiana | beggarslice, stickseed |
| Hamamelis virginiana | American witch-hazel |
| Hedeoma pulegioides | American pennyroyal |
| Helenium autumnale | common sneezeweed |
| Helianthus decapetalus | thin-leaved sunflower |
| Helianthus divaricatus | woodland sunflower |
| Helianthus giganteus | tall sunflower |
| Helianthus strumosus | pale-leaved sunflower |
| Heliopsis helianthoides var. helianthoides | ox-eye |
| Heliopsis helianthoides var. scabra | smooth oxeye |
| Heracleum maximum | cow-parsnip |
| Heteranthera dubia | grass-leaved mud-plantain |
| Hibiscus moscheutos ssp. moscheutos | swamp rosemallow |
| Hieracium gronovii | hairy hawkweed, queen-devil |
| Hieracium paniculatum | panicled hawkweed |
| Hieracium scabrum | rough hawkweed |
| Hieracium umbellatum | Canada hawkweed, Kalm’s hawkweed |
| Hieracium venosum | rattlesnake hawkweed |
| Houstonia longifolia | long-leaved bluet |
| Huperzia lucidula | shining clubmoss, shining fir clubmoss, shining firmoss |
| Hybanthus concolor | eastern greenviolet |
| Hydrastis canadensis | golden-seal, orange-root, yellow-puccoon |
| Hydrocotyle americana | American water-pennywort |
| Hydrophyllum canadense | blunt-leaved waterleaf |
| Hydrophyllum virginianum | Virginia waterleaf, John’s cabbage |
| Hylodesmum glutinosum | large tick-trefoil |
| Hypericum ascyron | great St. John’s-wort |
| Hypericum ellipticum | pale St. John’s-wort |
| Hypericum mutilum | dwarf St. John’s-wort |
| Hypericum punctatum | spotted St. John’s-wort |
| Ilex montana | mountain holly |
| Ilex verticillata | common winterberry, black holly |
| Impatiens capensis | spotted jewelweed, touch-me-not, snapweed |
| Impatiens pallida | pale jewel-weed |
| Isoetes echinospora ssp. muricata | spiny-spore quillwort |
| Jeffersonia diphylla | twin-leaved, rheumatism-root |
| Juglans cinerea | butternut, white walnut |
| Juglans nigra | black walnut |
| Juncus acuminatus | sharp-fruited rush |
| Juncus alpinoarticulatus | northern green rush, alpine rush |
| Juncus articulatus | jointed rush |
| Juncus balticus ssp. littoralis | Baltic rush |
| Juncus brachycephalus | small-head rush |
| Juncus brevicaudatus | narrow-panicled rush |
| Juncus bufonius | toad rush |
| Juncus canadensis | Canada rush |
| Juncus dudleyi | Dudley’s rush |
| Juncus effusus var. pylaei | common rush |
| Juncus effusus var. solutus | common rush |
| Juncus nodosus | knotted rush |
| Juncus tenuis | path rush, slender rush |
| Juncus torreyi | Torrey’s rush |
| Juniperus virginiana var. virginiana | red cedar, savin |
| Justicia americana | common water-willow |
| Kalmia latifolia | mountain laurel |
| Kalmia polifolia | pale laurel |
| Lactuca biennis | tall blue lettuce |
| Lactuca canadensis | Canada lettuce |
| Lactuca hirsuta | hairy lettuce |
| Laportea canadensis | wood nettle |
| Larix laricina | tamarack, American larch |
| Lathyrus japonicus var. maritimus | beach pea |
| Lathyrus ochroleucus | pale vetchling peavine |
| Lathyrus palustris | vetchling peavine |
| Lechea intermedia var. intermedia | large-podded pinweed |
| Lechea mucronata | hairy pinweed |
| Leersia oryzoides | rice cutgrass |
| Leersia virginica | Virginia cutgrass |
| Lemna minor | lesser duckweed |
| Lepidium virginicum var. virginicum | wild peppergrass, poor-man’s pepper |
| Leptochloa fusca ssp. fascicularis | bearded sprangletop, salt-meadow grass |
| Lespedeza capitata | round-head bush-clover |
| Lespedeza hirta | hairy bush-clover |
| Lespedeza violacea | wand bush-clover |
| Lespedeza x neglecta | bush-clover |
| Lespedeza x nuttallii | Nuttall’s bush-clover |
| Lilium canadense ssp. canadense | Canada lily, yellow Canada lily |
| Lilium philadelphicum | wood lily |
| Lindera benzoin | spicebush, wild allspice |
| Lindernia dubia var. dubia | yellow-seeded false pimpernel |
| Linnaea borealis ssp. americana | twinflower |
| Linum medium var. texanum | stiff yellow flax |
| Linum sulcatum | grooved yellow flax |
| Linum virginianum | Virginia flax |
| Liparis loeselii | Loesel’s twayblade, fen orchid |
| Liriodendron tulipifera | tulip tree, tulip poplar, yellow poplar |
| Listera australis | southern twayblade |
| Lithospermum canescens | hoary puccoon |
| Lithospermum latifolium | American gromwell |
| Lithospermum parviflorum | hairy false gromwell |
| Lithospermum virginianum | Virginia false-gromwell |
| Lobelia cardinalis | cardinal flower |
| Lobelia inflata | Indian-tobacco |
| Lobelia kalmii | Kalm’s lobelia |
| Lobelia siphilitica | great blue lobelia |
| Lonicera canadensis | American fly-honeysuckle |
| Lonicera dioica var. dioica | limber honeysuckle |
| Lonicera dioica var. glaucescens | limber honeysuckle |
| Lonicera oblongifolia | swamp fly-honeysuckle |
| Ludwigia palustris | marsh seedbox |
| Lupinus perennis ssp. perennis | sundial lupine |
| Luzula acuminata var. acuminata | hairy woodrush |
| Luzula multiflora ssp. multiflora | common woodrush |
| Lycopodium clavatum | running pine, running cedar, staghorn clubmoss |
| Lycopus americanus | American bugleweed |
| Lycopus rubellus | stalked bugleweed |
| Lycopus uniflorus | northern bugleweed |
| Lycopus virginicus | Virginia bugleweed |
| Lysimachia ciliata | fringed loosestrife |
| Lysimachia quadriflora | four-flowered loosestrife |
| Lysimachia quadrifolia | whorled loosestrife |
| Lysimachia terrestris | swamp loosestrife |
| Lysimachia thyrsiflora | water loosestrife |
| Lysimachia x producta | loosestrife |
| Lythrum alatum var. alatum | winged loosestrife, winged lythrum |
| Magnolia acuminata | cucumber tree, mountain magnolia, cucumber magnolia |
| Maianthemum canadense | Canada May-flower, false lily-of-the-valley |
| Maianthemum racemosum ssp. racemosum | false Solomon’s-seal, Solomon’s-plume |
| Maianthemum stellatum | starry Solomon’s-seal, starflower Solomon’s-plume |
| Maianthemum trifolium | three-leaved Solomon’s-plume |
| Malaxis monophyllos var. brachypoda | white adder’s-mouth orchid |
| Malus coronaria var. dasycalyx | sweet crab-apple |
| Malus glaucescens | sweet crab-apple |
| Matteuccia struthiopteris | ostrich fern |
| Medeola virginiana | Indian cucumber-root |
| Melampyrum lineare var. latifolium | narrow-leaved cow-wheat |
| Menispermum canadense | Canada moonseed |
| Mentha canadensis | Canadian mint |
| Menyanthes trifoliata | bog buckbean |
| Mertensia virginica | Virginia bluebells |
| Micranthes pensylvanica | swamp saxifrage |
| Micranthes virginiensis | Virginia saxifrage |
| Milium effusum var. cisatlanticum | tall millet-grass |
| Mimulus alatus | sharp-winged monkey-flower |
| Mimulus ringens | square-stemmed monkey-flower, Allegheny monkey-flower |
| Mitchella repens | partridgeberry |
| Mitella diphylla | two-leaved bishop’s-cap, two-leaved miterwort, coolwort |
| Mitella nuda | naked bishop’s-cap |
| Monarda clinopodia | basil bee-balm |
| Monarda didyma | Oswego tea |
| Monarda fistulosa var. fistulosa | wild bergamot bee-balm |
| Monarda fistulosa var. mollis | wild bergamot |
| Monarda media | purple bergamot |
| Monotropa hypopithys | American pinesap |
| Monotropa uniflora | Indian-pipe |
| Morella caroliniensis | bayberry, candleberry, |
| Morus rubra | red mulberry |
| Muhlenbergia frondosa | wirestem muhly |
| Muhlenbergia mexicana | Mexican muhly |
| Muhlenbergia schreberi | Schreber muhly |
| Muhlenbergia sylvatica | woodland muhly |
| Myosotis laxa | smaller forget-me-not, wild forget-me-not |
| Myosotis verna | spring forget-me-not |
| Myriophyllum sibiricum | northern water-milfoil |
| Myriophyllum verticillatum | whorled water-milfoil |
| Najas flexilis | slender naiad, slender water-nymph |
| Nemopanthus mucronatus | mountain holly |
| Neobeckia aquatica | lake-cress |
| Nymphaea odorata ssp. odorata | white water-lily, American white water-lily, fragrant water-lily |
| Nyssa sylvatica | black gum, black tupelo, sourgum, |
| Oclemena acuminata | whorled aster |
| Oenothera fruticosa ssp. glauca | shrubby sundrops |
| Oenothera laciniata | cut-leaved evening-primrose |
| Oenothera parviflora | northern evening-primrose |
| Oligoneuron ohioense | Ohio goldenrod |
| Oligoneuron rigidum var. rigidum | stiff-leaved goldenrod, prairie goldenrod |
| Onoclea sensibilis | sensitive fern |
| Ophioglossum pusillum | adder’s tongue |
| Orobanche uniflora | one-flowered broomrape |
| Orthilia secunda | one-sided wintergreen |
| Oryzopsis asperifolia | white-grained mountain-ricegrass |
| Osmorhiza claytonii | Clayton’s sweetroot |
| Osmorhiza longistylis | long-styled sweetroot |
| Osmunda cinnamomea | cinnamon fern |
| Osmunda claytoniana | interrupted fern |
| Osmunda regalis var. spectabilis | royal fern |
| Ostrya virginiana | hop hornbeam, ironwood |
| Oxalis montana | white wood-sorrel |
| Oxalis stricta | upright yellow wood-sorrel |
| Packera aurea | golden ragwort |
| Packera obovata | round-leaved ragwort |
| Panax quinquefolius | American ginseng |
| Panax trifolius | dwarf ginseng |
| Panicum capillare ssp. capillare | old witch panic-grass |
| Panicum dichotomiflorum var. dichotomiflorum | fall panicgrass |
| Panicum philadelphicum ssp. gattingeri | Gattinger panic grass |
| Panicum virgatum | switchgrass |
| Parnassia glauca | Carolina grass-of-parnassus |
| Parthenocissus inserta | woodbine |
| Parthenocissus quinquefolia | Virginia creeper |
| Pedicularis canadensis ssp. canadensis | Canadian lousewort, wood-betony |
| Pedicularis lanceolata | swamp lousewort |
| Peltandra virginica | green arrow-arum |
| Penstemon digitalis | talus slope beard-tongue |
| Penstemon hirsutus | hairy beard-tongue, northeastern beard-tongue |
| Penstemon pallidus | pale beardtongue |
| Penthorum sedoides | ditch-stonecrop |
| Persicaria amphibia | water smartweed, longroot smartweed |
| Persicaria arifolia | halberd-leaved tearthumb, tear-thumb |
| Persicaria hydropiperoides | swamp smartweed |
| Persicaria pensylvanica | Pennsylvania smartweed |
| Persicaria punctata | dotted smartweed |
| Persicaria robustior | stout smartweed. large water smartweed |
| Persicaria sagittata | arrow-leaved tearthumb, arrow-vine, scratch-grass |
| Persicaria setacea | swamp smartweed, bog smartweed |
| Persicaria virginiana | jumpseed |
| Phalaris arundinacea | reed canary grass |
| Phegopteris connectilis | northern beech fern |
| Phegopteris hexagonoptera | broad beech fern |
| Phlox divaricata ssp. divaricata | wild blue phlox |
| Phryma leptostachya | lopseed |
| Physalis heterophylla | clammy ground-cherry |
| Physalis longifolia var. subglabrata | long-leaved ground-cherry |
| Physalis pubescens var. integrifolia | low-hairy ground-cherry |
| Physalis virginiana var. virginiana | Virginia ground-cherry |
| Physocarpus opulifolius | eastern ninebark |
| Physostegia virginiana | false dragon-head |
| Phytolacca americana var. americana | common pokeweed, pokeweed, poke, pokeberry |
| Picea glauca | white spruce |
| Picea mariana | black spruce, bog spruce |
| Picea rubens | red spruce |
| Pilea fontana | clearweed, springs clearweed |
| Pilea pumila | clearweed, Canada clearweed, cool-wort, richweed, |
| Pinus resinosa | red pine |
| Pinus strobus | eastern white pine |
| Piptatherum racemosum | black-fruited mountain-ricegrass |
| Plantago cordata | heart-leaved plantain |
| Plantago rugelii | black-seeded plantain |
| Plantago virginica | Virginia plantain, pale-seeded plantain, hoary plantain |
| Platanthera aquilonis | northern green orchid |
| Platanthera blephariglottis var. blephariglottis | white fringed orchis |
| Platanthera clavellata | small green woodland orchid |
| Platanthera dilatata var. dilatata | bog-candle, white bog-orchid |
| Platanthera flava var. herbiola | pale green orchid |
| Platanthera grandiflora | large purple fringed orchis |
| Platanthera hookeri | Hooker’s orchid |
| Platanthera lacera | green fringed orchis |
| Platanthera macrophylla | greater round-leaved orchid |
| Platanthera orbiculata | large round-leaved orchid |
| Platanthera psycodes | lesser purple fringed orchid |
| Platanus occidentalis | sycamore, American plane-tree |
| Poa alsodes | grove bluegrass |
| Poa palustris | fowl bluegrass, meadowgrass |
| Poa saltuensis ssp. languida | woodland bluegrass |
| Poa saltuensis ssp. saltuensis | drooping bluegrass |
| Poa sylvestris | woodland bluegrass |
| Podophyllum peltatum | May-apple, Indian-apple, wild-mandrake |
| Pogonia ophioglossoides | rose pogonia |
| Polemonium reptans var. reptans | charity, greek valerian |
| Polygala paucifolia | gay-wing milkwort |
| Polygala sanguinea | field milkwort |
| Polygala verticillata var. verticillata | whorled milkwort |
| Polygonatum biflorum | common Solomon’s-seal, giant Solomon’s seal |
| Polygonatum pubescens | downy Solomon’s-seal, hairy Solomon’s seal |
| Polygonum achoreum | leathery knotweed, Blake’s knotweed |
| Polygonum aviculare ssp. buxiforme | Small’s knotweed, American knotweed |
| Polygonum erectum | erect knotweed |
| Polygonum ramosissimum ssp. prolificum | bushy knotweed, saltmarsh knotweed |
| Polygonum ramosissimum ssp. ramosissimum | bushy knotweed, slender knotgrass |
| Polymnia canadensis | white-flowered leafcup |
| Polypodium virginianum | rock polypody |
| Polystichum acrostichoides | Christmas fern |
| Pontederia cordata | pickerelweed |
| Populus deltoides | eastern cottonwood |
| Populus tremuloides | quaking aspen |
| Potamogeton amplifolius | large-leaved pondweed, broad-leaved pondweed |
| Potamogeton epihydrus | ribbon-leaved pondweed, Nuttall’s pondweed |
| Potamogeton foliosus ssp. foliosus | leafy pondweed |
| Potamogeton gramineus | grassy pondweed |
| Potamogeton illinoensis | Illinois pondweed |
| Potamogeton nodosus | long-leaved pondweed |
| Potamogeton obtusifolius | blunt-leaved pondweed |
| Potamogeton perfoliatus | clasping-leaved pondweed |
| Potamogeton pusillus ssp. pusillus | small pondweed |
| Potamogeton richardsonii | Richardson’s pondweed |
| Potamogeton vaseyi | Vasey’s pondweed |
| Potamogeton x spathuliformis | pondweed |
| Potamogeton zosteriformis | flat-stemmed pondweed |
| Potentilla arguta | tall cinquefoil |
| Potentilla simplex | old-field cinquefoil |
| Prenanthes alba | white rattlesnake-root |
| Prenanthes altissima | tall rattlesnake-root |
| Prenanthes crepidinea | nodding rattlesnake-root |
| Prenanthes trifoliolata | three-leaved rattlesnake-root |
| Prosartes lanuginosa | yellow fairybells, yellow mandarin, hairy mandarin |
| Prunus americana | American plum |
| Prunus nigra | Canada plum |
| Prunus pensylvanica var. pensylvanica | pin cherry, fire cherry |
| Prunus serotina var. serotina | wild black cherry |
| Prunus virginiana | choke cherry |
| Pseudognaphalium macounii | Macoun’s cudweed |
| Pseudognaphalium obtusifolium | fragrant cudweed |
| Ptelea trifoliata ssp. trifoliata | wafer-ash, common hoptree |
| Pteridium aquilinum var. latiusculum | eastern bracken, bracken fern |
| Pterospora andromedea | giant pinedrops |
| Pycnanthemum tenuifolium | slender mountain-mint |
| Pycnanthemum virginianum | Virginia mountain-mint |
| Pyrola asarifolia ssp. asarifolia | pink wintergreen |
| Pyrola chlorantha | greenish-flowered wintergreen |
| Pyrola elliptica | shinleaf |
| Quercus alba | white oak, eastern white oak |
| Quercus bicolor | swamp white oak |
| Quercus macrocarpa | burr oak, mossy-cup oak |
| Quercus montana | chestnut oak, rock chestnut oak |
| Quercus muehlenbergii | chinkapin oak, chinquapin oak |
| Quercus palustris | pin oak |
| Quercus rubra | red oak, northern red oak |
| Ranunculus abortivus | kidney-leaved crowfoot, little-leaved buttercup |
| Ranunculus fascicularis | early buttercup |
| Ranunculus flabellaris | yellow water-crowfoot |
| Ranunculus hispidus var. caricetorum | bristly buttercup |
| Ranunculus hispidus var. hispidus | bristly buttercup |
| Ranunculus longirostris | eastern white water-crowfoot |
| Ranunculus pensylvanicus | Pennsylvania buttercup, bristly buttercup |
| Ranunculus recurvatus var. recurvatus | hooked crowfoot |
| Rhamnus alnifolia | alder-leaved buckthorn |
| Rhododendron groenlandicum | bog labrador tea |
| Rhododendron maximum | great laurel |
| Rhododendron periclymenoides | pink azalea |
| Rhododendron prinophyllum | early azalea |
| Rhus glabra | smooth sumac |
| Rhus typhina | staghorn sumac |
| Rhynchospora alba | white beak-rush |
| Rhynchospora capillacea | horned beak-rush |
| Ribes americanum | wild black currant |
| Ribes cynosbati | prickly gooseberry |
| Ribes glandulosum | skunk currant |
| Ribes hirtellum | smooth gooseberry |
| Ribes triste | swamp red currant |
| Rorippa palustris ssp. fernaldiana | Fernald’s yellow-cress |
| Rorippa palustris ssp. palustris | bog yellow-cress |
| Rosa carolina var. carolina | Carolina rose |
| Rosa palustris | swamp rose |
| Rosa setigera var. setigera | climbing rose |
| Rosa setigera var. tomentosa | prairie rose |
| Rosa virginiana | Virginia rose |
| Rubus allegheniensis | Allegheny blackberry |
| Rubus flagellaris | northern dewberry |
| Rubus hispidus | bristly dewberry |
| Rubus idaeus ssp. strigosus | American red raspberry |
| Rubus occidentalis | black raspberry |
| Rubus odoratus | purple flowering raspberry |
| Rubus pubescens var. pubescens | dwarf red blackberry, plumboy |
| Rudbeckia laciniata var. laciniata | cut-leaved coneflower |
| Rumex altissimus | tall dock, pale dock |
| Rumex britannica | water dock, greater water dock, British dock |
| Rumex fueginus | sea-side dock, American golden dock |
| Rumex triangulivalvis | white dock, white willow dock, triangular-valved dock |
| Rumex verticillatus | swamp dock, water dock |
| Sagittaria graminea ssp. graminea | grass-leaved arrowhead |
| Sagittaria latifolia | broad-leaved arrowhead, wapato, common arrowhead |
| Sagittaria rigida | sessile-fruited arrowhead |
| Salix amygdaloides | peach-leaved willow |
| Salix bebbiana | Bebb’s willow |
| Salix discolor | pussy willow |
| Salix eriocephala | heart-leaved willow, Missouri willow, diamond willow |
| Salix humilis var. humilis | tall prairie willow |
| Salix interior | sandbar willow |
| Salix lucida ssp. lucida | shining willow, glossy willow |
| Salix nigra | black willow |
| Salix pedicellaris | bog willow |
| Salix petiolaris | meadow willow |
| Salix sericea | silky willow |
| Salix serissima | autumn willow |
| Sambucus nigra ssp. canadensis | common elderberry |
| Sambucus racemosa var. racemosa | red elderberry |
| Samolus valerandi ssp. parviflorus | water pimpernel |
| Sanguinaria canadensis | bloodroot |
| Sanguisorba canadensis | Canadian burnet, American burnet |
| Sanicula canadensis | short-styled sanicle |
| Sanicula marilandica | black snakeroot |
| Sanicula odorata | clustered black snakeroot |
| Sanicula trifoliata | large-fruited sanicle |
| Sarracenia purpurea | pitcher-plant, side-saddle plant |
| Sassafras albidum | sassafras, ague tree |
| Saururus cernuus | lizard’s tail |
| Schizachne purpurascens | purple oat |
| Schizachyrium scoparium var. scoparium | little bluestem |
| Schoenoplectus pungens | three-square bulrush, common three-square |
| Schoenoplectus subterminalis | water bulrush |
| Schoenoplectus tabernaemontani | soft-stemmed bulrush, great bulrush |
| Schoenoplectus torreyi | Torrey’s bulrush, Torrey’s three-square bulrush |
| Scirpus atrovirens | darkgreen bulrush |
| Scirpus cyperinus | common wool-grass |
| Scirpus microcarpus | small-fruited bulrush |
| Scirpus pedicellatus | stalked woolgrass |
| Scirpus pendulus | pendulous bulrush |
| Scirpus polyphyllus | leafy bulrush |
| Scrophularia lanceolata | hare figwort |
| Scrophularia marilandica | carpenter’s square |
| Scutellaria galericulata | hooded skullcap |
| Scutellaria lateriflora | mad-dog skullcap |
| Scutellaria parvula var. missouriensis | Leonard’s skullcap |
| Selaginella apoda | creeping spikemoss |
| Senna hebecarpa | wild senna |
| Shepherdia canadensis | Canada buffalo-berry, Canada buffaloberry |
| Sicyos angulatus | one-seeded burr cucumber |
| Silene antirrhina | sleepy catchfly |
| Sisyrinchium angustifolium | narrow-leaved blue-eyed grass |
| Sisyrinchium montanum var. montanum | strict blue-eyed-grass |
| Sisyrinchium mucronatum | needletip blue-eyed grass |
| Sium suave | hemlock water-parsnip |
| Smallanthus uvedalia | bear’s-foot, yellow-flowered leaf-cup |
| Smilax herbacea | carrion-flower, smooth herbaceous greenbrier |
| Smilax hispida | bristly greenbrier |
| Smilax rotundifolia | round-leaved greenbrier, common greenbrier |
| Solanum carolinense var. carolinense | Carolina horsenettle |
| Solanum ptychanthum | black nightshade |
| Solidago altissima ssp. altissima | tall goldenrod |
| Solidago arguta var. arguta | cut-leaved goldenrod |
| Solidago bicolor | silver-rod, white goldenrod |
| Solidago caesia var. caesia | blue-stemmed goldenrod, wreath goldenrod |
| Solidago canadensis var. canadensis | Canada goldenrod |
| Solidago canadensis var. hargeri | Harger’s goldenrod |
| Solidago flexicaulis | zig-zag goldenrod, broad-leaved goldenrod |
| Solidago gigantea | giant goldenrod, smooth goldenrod |
| Solidago hispida | hairy goldenrod |
| Solidago juncea | early goldenrod |
| Solidago nemoralis ssp. nemoralis | gray goldenrod, old-field goldenrod, field goldenrod |
| Solidago odora ssp. odora | sweet goldenrod, anise-scented goldenrod |
| Solidago patula ssp. patula | rough-leaved goldenrod |
| Solidago rugosa var. rugosa | wrinkle-leaved goldenrod, rough-stemmed goldenrod |
| Solidago sempervirens ssp. sempervirens | seaside goldenrod |
| Solidago squarrosa | stout goldenrod, squarrose goldenrod |
| Solidago uliginosa var. linoides | bog goldenrod |
| Solidago uliginosa var. uliginosa | bog goldenrod |
| Solidago ulmifolia var. ulmifolia | elm-leaved goldenrod |
| Sorghastrum nutans | yellow Indiangrass |
| Sparganium americanum | American bur-reed |
| Sparganium emersum | unbranched bur-reed |
| Sparganium eurycarpum | large bur-reed |
| Spartina pectinata | fresh water cordgrass |
| Sphenopholis intermedia | slender wedgescale |
| Sphenopholis nitida | shiny wedge grass |
| Spinulum annotinum | common bristly clubmoss, common stiff clubmoss |
| Spiraea alba var. alba | narrow-leaved meadow-sweet |
| Spiraea alba var. latifolia | northern meadow-sweet |
| Spiranthes cernua | nodding ladies’-tresses |
| Spiranthes lucida | shining ladies’-tresses, wide-leaved ladies’-tresses |
| Spiranthes ochroleuca | yellow nodding ladies’-tresses |
| Sporobolus neglectus | small dropseed |
| Sporobolus vaginiflorus var. vaginiflorus | sheathed dropseed |
| Stachys tenuifolia | smooth hedge-nettle |
| Staphylea trifolia | American bladdernut |
| Stellaria longifolia | long-leaved stitchwort, long-leaved starwort |
| Streptopus lanceolatus | rosy twisted-stalk, rose mandarin |
| Strophostyles helvula | trailing fuzzybean, wild bean |
| Stuckenia filiformis ssp. alpinus | fineleaf pondweed |
| Stuckenia pectinata | Sago pondweed |
| Symphoricarpos albus var. albus | snowberry |
| Symphyotrichum boreale | boreal aster |
| Symphyotrichum cordifolium | heart-leaved aster |
| Symphyotrichum ericoides var. ericoides | white heath aster |
| Symphyotrichum laeve var. laeve | smooth blue aster |
| Symphyotrichum lanceolatum var. lanceolatum | white panicle aster |
| Symphyotrichum lateriflorum | calico aster, small white aster |
| Symphyotrichum lowrieanum | fall aster |
| Symphyotrichum novae-angliae | New England aster |
| Symphyotrichum novi-belgii var. crenifolium | Newfoundland aster |
| Symphyotrichum oolentangiense | skyblue aster |
| Symphyotrichum patens var. patens | late purple aster |
| Symphyotrichum pilosum var. pilosum | hairy white old-field aster |
| Symphyotrichum pilosum var. pringlei | Pringle’s aster |
| Symphyotrichum praealtum var. praealtum | willow-leaved aster |
| Symphyotrichum prenanthoides | crooked-stemmed aster, zig-zag aster |
| Symphyotrichum puniceum var. puniceum | purple-stemmed aster |
| Symphyotrichum tenuifolium var. tenuifolium | perennial salt-marsh aster |
| Symphyotrichum tradescantii | shore aster |
| Symphyotrichum urophyllum | arrow-leaved aster |
| Symplocarpus foetidus | skunk cabbage |
| Taenidia integerrima | yellow pimpernel |
| Taxus canadensis | Canada yew, ground hemlock, American yew |
| Teucrium canadense var. canadense | Canada Germander |
| Teucrium canadense var. occidentale | American Germander |
| Thalictrum dioicum | early meadow-rue, quicksilver-weed |
| Thalictrum pubescens | tall meadow-rue, late meadow-rue |
| Thalictrum revolutum | purple meadow-rue, wax-leaved meadow-rue |
| Thalictrum thalictroides | windflower, rue-anemone |
| Thaspium barbinode | hairy-jointed meadowparsnip |
| Thaspium trifoliatum var. aureum | purple meadow-parsnip |
| Thelypteris noveboracensis | New York fern |
| Thelypteris palustris var. pubescens | marsh fern |
| Thuja occidentalis | northern white cedar, arbor-vitae, arborvitae |
| Tiarella cordifolia | heart-leaved foam-flower |
| Tilia americana var. americana | American basswood |
| Torreyochloa pallida var. fernaldii | Fernald’s false mannagrass |
| Toxicodendron radicans ssp. negundo | eastern poison ivy |
| Toxicodendron vernix | poison sumac |
| Triadenum virginicum | marsh St. John’s-wort |
| Trichophorum alpinum | alpine cotton-grass |
| Trichophorum clintonii | Clinton’s bulrush |
| Trichophorum planifolium | bashful bulrush |
| Tridens flavus var. flavus | tall purple-topped fluffgrass |
| Trientalis borealis | northern starflower |
| Triglochin palustris | slender bog arrow-grass |
| Trillium erectum | wake robin, red trillium, |
| Trillium flexipes | nodding trillium, bent trillium, declined trillium |
| Trillium grandiflorum | large-flowered trillium, white trillium |
| Trillium undulatum | painted trillium, painted lady |
| Triodanis perfoliata var. perfoliata | clasping-leaved Venus’ looking-glass |
| Triosteum aurantiacum | orange-fruited horse-gentian |
| Triosteum perfoliatum | perfoliate-leaved horse-gentian |
| Triphora trianthophora ssp. trianthophora | nodding pogonia |
| Triplasis purpurea var. purpurea | purple sandgrass |
| Tsuga canadensis | eastern hemlock |
| Turritis glabra | tower rockcress |
| Typha angustifolia | narrow-leaved cattail |
| Typha latifolia | broad-leaved cattail |
| Ulmus americana | American elm |
| Ulmus rubra | slippery elm |
| Ulmus thomasii | rock elm |
| Urtica dioica ssp. gracilis | American stinging nettle |
| Utricularia intermedia | flat-leaved bladderwort |
| Utricularia macrorhiza | greater bladderwort |
| Uvularia grandiflora | large-flowered bellwort |
| Uvularia perfoliata | perfoliate bellwort |
| Uvularia sessilifolia | sessile-leaved bellwort, wild-oats, straw-lily |
| Vaccinium angustifolium | lowbush blueberry, low sweet blueberry |
| Vaccinium corymbosum | highbush blueberry, swamp blueberry |
| Vaccinium macrocarpon | large cranberry |
| Vaccinium myrtilloides | velvet-leaved huckleberry, sour-top blueberry |
| Vaccinium oxycoccos | small cranberry |
| Vaccinium pallidum | early lowbush blueberry |
| Vaccinium stamineum | deerberry |
| Valeriana uliginosa | marsh valerian |
| Valerianella chenopodiifolia | goose-foot corn-salad |
| Vallisneria americana | water-celery, eel-grass, tape-grass, wild-celery |
| Veratrum viride | American false-hellebore |
| Verbena hastata var. hastata | blue vervain, swamp verbena, simpler’s-joy |
| Verbena urticifolia var. leiocarpa | white vervain |
| Verbena urticifolia var. urticifolia | white vervain |
| Veronica americana | American speedwell |
| Veronica anagallis-aquatica | water speedwell |
| Veronica peregrina ssp. peregrina | neckweed |
| Veronica scutellata | marsh-speedwell |
| Veronicastrum virginicum | Culver’s-root |
| Viburnum acerifolium | maple-leaved viburnum |
| Viburnum dentatum var. lucidum | northern arrowwood |
| Viburnum lantanoides | hobblebush, alder-leaved viburnum |
| Viburnum lentago | nannyberry |
| Viburnum nudum var. cassinoides | northern wild raisin |
| Viburnum opulus var. americanum | highbush cranberry |
| Viburnum rafinesquianum | downy arrow-wood |
| Viola affinis | sand violet |
| Viola bicolor | field pansy |
| Viola blanda | sweet white violet |
| Viola canadensis var. canadensis | Canada violet, Canadian white violet |
| Viola cucullata | marsh blue violet |
| Viola labradorica | alpine violet, American dog violet |
| Viola nephrophylla | northern bog violet |
| Viola pallens | smooth white violet |
| Viola palmata | early blue violet |
| Viola pedata | bird’s-foot violet |
| Viola pubescens var. pubescens | downy yellow violet |
| Viola pubescens var. scabriuscula | downy yellow violet |
| Viola rostrata | long-spur violet |
| Viola rotundifolia | round-leaved violet |
| Viola sagittata var. ovata | arrow-leaved violet |
| Viola sagittata var. sagittata | arrow-leaved violet |
| Viola selkirkii | great-spurred violet |
| Viola septentrionalis | northern blue violet |
| Viola sororia | common violet |
| Viola striata | striped cream violet |
| Viola x conjugens | northern bog violet |
| Viola x hollickii | violet |
| Viola x parca | violet |
| Viola x slavinii | violet |
| Vitis aestivalis var. aestivalis | summer grape |
| Vitis riparia | riverbank grape, frost grape |
| Vulpia octoflora var. tenella | slender 8-flowered fescue |
| Waldsteinia fragarioides | barren strawberry |
| Wolffia columbiana | columbian watermeal |
| Woodwardia virginica | Virginia chainfern |
| Xanthium strumarium var. canadense | Canada cockle-bur |
| Zannichellia palustris | horned pondweed |
| Zanthoxylum americanum | northern prickly-ash |
| Zizia aurea | common golden Alexanders |