This is the official list of Endangered, Threatened, and Special Concern species as defined in Section 10.60 of Chapter 321 of the Code of Massachusetts Regulations.  The MESA List is prepared under the authority of the Massachusetts Endangered Species Act (MESA).  Under this act (MGL c. 131A and its implementing regulations (321 CMR 10.00)), MESA-listed species are protected from "take".  Please see the Regulatory Review pages for additional information on MESA.

To access a species fact sheet click on the "Common Name". Please note that some species do not have a fact sheet available at this time.  For the most up to date distribution maps please use the Species Viewer and sort by the species common or scientific name.


Taxonomic GroupCommon NameScientific NameMA StatusFed StatusNotes
Fish American Brook Lamprey pdf format of American Brook Lamprey Lampetra appendixT  
Fish Shortnose Sturgeon pdf format of Shortnose Sturgeon Acipenser brevirostrumEE 
Fish Atlantic Sturgeon pdf format of Atlantic Sturgeon Acipenser oxyrinchusET 
Fish Lake Chub pdf format of Lake Chub  Couesius plumbeusE  
Fish Eastern Silvery Minnow pdf format of Eastern Silvery Minnow  Hybognathus regiusSC  
Fish Bridle Shiner pdf format of Bridle Shiner  Notropis bifrenatusSC  
Fish Northern Redbelly Dace pdf format of Northern Redbelly Dace  Phoxinus eosE  
Fish Longnose Sucker pdf format of Longnose Sucker  Catostomus catostomusSC  
Fish Burbot pdf format of Burbot  Lota lotaSC  
Fish Threespine Stickleback pdf format of Threespine Stickleback  Gasterosteus aculeatusT 1
Amphibians Jefferson Salamander pdf format of Jefferson Salamander  Ambystoma jeffersonianumSC 2
Amphibians Blue-spotted Salamander pdf format of Blue-spotted Salamander  Ambystoma lateraleSC 2
Amphibians Marbled Salamander pdf format of Marbled Salamander  Ambystoma opacumT  
Amphibians Eastern Spadefoot pdf format of Eastern Spadefoot  Scaphiopus holbrookiiT  
ReptilesLoggerhead SeaturtleCaretta carettaTT 
ReptilesGreen SeaturtleChelonia mydasTT 
ReptilesHawksbill SeaturtleEretmochelys imbricataEE 
ReptilesKemp's Ridley SeaturtleLepidochelys kempiiEE 
ReptilesLeatherback SeaturtleDermochelys coriaceaEE 
Reptiles Wood Turtle pdf format of Wood Turtle  Glyptemys insculptaSC  
Reptiles Bog Turtle pdf format of Bog Turtle  Glyptemys muhlenbergiiET 
Reptiles Blanding's Turtle pdf format of Blanding's Turtle  Emydoidea blandingiiT  
Reptiles Diamond-backed Terrapin pdf format of Diamond-backed Terrapin  Malaclemys terrapinT  
Reptiles Northern Red-bellied Cooter pdf format of Northern Red-bellied Cooter  Pseudemys rubriventrisEE4
Reptiles Eastern Box Turtle pdf format of Eastern Box Turtle  Terrapene carolinaSC  
Reptiles Eastern Wormsnake pdf format of Eastern Wormsnake  Carphophis amoenusT  
Reptiles Eastern Ratsnake pdf format of Eastern Ratsnake  Pantherophis alleghaniensisE  
Reptiles Copperhead pdf format of Copperhead  Agkistrodon contortrixE  
Reptiles Timber Rattlesnake pdf format of Timber Rattlesnake  Crotalus horridusE  
Birds Common Loon pdf format of Common Loon  Gavia immerSC  
Birds Pied-billed Grebe pdf format of Pied-billed Grebe  Podilymbus podicepsE  
Birds Leach's Storm-petrel pdf format of Leach's Storm-petrel  Oceanodroma leucorhoaE  
Birds American Bittern pdf format of American Bittern  Botaurus lentiginosusE  
Birds Least Bittern pdf format of Least Bittern  Ixobrychus exilisE  
Birds Bald Eagle pdf format of Bald Eagle  Haliaeetus leucocephalusT  
Birds Northern Harrier pdf format of Northern Harrier  Circus cyaneusT  
Birds Sharp-shinned Hawk pdf format of Sharp-shinned Hawk  Accipiter striatusSC  
Birds Peregrine Falcon pdf format of Peregrine Falcon  Falco peregrinusE  
Birds King Rail pdf format of King Rail  Rallus elegansT  
Birds Common Moorhen pdf format of Common Moorhen  Gallinula chloropusSC  
Birds Piping Plover pdf format of Piping Plover  Charadrius melodusTT 
Birds Upland Sandpiper pdf format of Upland Sandpiper  Bartramia longicaudaE  
Birds Roseate Tern pdf format of Roseate Tern  Sterna dougalliiEE 
Birds Common Tern pdf format of Common Tern  Sterna hirundoSC  
Birds Arctic Tern pdf format of Arctic Tern  Sterna paradisaeaSC  
Birds Least Tern pdf format of Least Tern  Sternula antillarumSC  
Birds Barn Owl pdf format of Barn Owl  Tyto albaSC  
Birds  Long-eared Owl pdf format of Long-eared Owl  Asio otusSC  
Birds Short-eared Owl pdf format of Short-eared Owl  Asio flammeusE  
Birds Sedge Wren pdf format of Sedge Wren  Cistothorus platensisE  
Birds Golden-winged Warbler pdf format of Golden-winged Warbler  Vermivora chrysopteraE  
Birds Northern Parula pdf format of Northern Parula  Parula americanaT  
Birds Blackpoll Warbler pdf format of Blackpoll Warbler  Dendroica striataSC  
Birds Mourning Warbler pdf format of Mourning Warbler  Oporornis philadelphiaSC  
Birds Vesper Sparrow pdf format of Vesper Sparrow  Pooecetes gramineusT  
Birds Grasshopper Sparrow pdf format of Grasshopper Sparrow  Ammodramus savannarumT  
Birds Henslow's Sparrow pdf format of Henslow's Sparrow  Ammodramus henslowiiE  
Birds Eastern Whip-poor-will pdf format of Eastern Whip-poor-will  Caprimulgus vociferusSC  
Mammals Water Shrew pdf format of Water Shrew Sorex palustrisSC  
Mammals Rock Shrew pdf format of Rock Shrew Sorex disparSC  
Mammals Indiana Myotis pdf format of Indiana Myotis Myotis sodalisE 
Mammals Small-Footed Myotis pdf format of Small-footed Bat Myotis leibiiE  
Mammals Little Brown Myotis pdf format of Little Brown Myotis Myotis lucifugusE  
Mammals Tricolored Bat pdf format of Tricolored Bat Perimyotis subflavusE  
Mammals Northern Long-eared Bat pdf format of Northern Long-eared Bat Myotis septentrionalisE  
Mammals Southern Bog Lemming pdf format of Southern Bog Lemming Synaptomys cooperiSC  
MammalsSperm WhalePhyseter macrocephalusE 
MammalsFin WhaleBalaenoptera physalusEE 
MammalsSei WhaleBalaenoptera borealisEE 
MammalsBlue WhaleBalaenoptera musculusEE 
Mammals Humpback Whale pdf format of Humpback Whale Megaptera novaeangliaeEE 
MammalsNorthern Right WhaleEubalaena glacialisEE 


Taxonomic GroupCommon NameScientific NameMA StatusFed StatusNotes
Sponges Smooth Branched Sponge pdf format of Smooth Branched Sponge  Spongilla aspinosaSC  
Flatworms Sunderland Spring Planarian pdf format of Sunderland Spring Planarian  Polycelis remotaE  
Segmented Worms New England Medicinal Leech pdf format of New England Medicinal Leech  Macrobdella sestertiaSC  
Snails New England Siltsnail pdf format of New England Siltsnail  Floridobia winkleyiSC  
Snails Walker's Limpet pdf format of Walker's Limpet  Ferrissia walkeriSC  
Snails Coastal Marsh Snail pdf format of Coastal Marsh Snail  Littoridinops tenuipesSC  
Snails Slender Walker pdf format of Slender Walker  Pomatiopsis lapidariaE  
Snails Boreal Marstonia pdf format of Boreal Marstonia  Marstonia lustricaE  
Snails Boreal Turret Snail pdf format of Boreal Turret Snail  Valvata sinceraE  
Mussels Dwarf Wedgemussel pdf format of Dwarf Wedgemussel Alasmidonta heterodonE 
Mussels Brook Floater (Swollen Wedgemussel) pdf format of Brook Floater Alasmidonta varicosaE  
Mussels Yellow Lampmussel pdf format of Yellow Lampmussel Lampsilis cariosaE  
Mussels Tidewater Mucket pdf format of Tidewater Mucket Leptodea ochraceaSC  
Mussels Eastern Pondmussel pdf format of Eastern Pondmussel Ligumia nasutaSC  
Mussels Creeper pdf format of Creeper Strophitus undulatusSC  
Crustaceans Intricate Fairy Shrimp pdf format of Intricate Fairy Shrimp Eubranchipus intricatusSC  
Crustaceans Agassiz's Clam Shrimp pdf format of Agassiz's Clam Shrimp Eulimnadia agassiziiE  
Crustaceans Northern Spring Amphipod pdf format of Northern Spring Amphipod Gammarus pseudolimnaeusSC  
Crustaceans American Clam Shrimp pdf format of American Clam Shrimp Limnadia lenticularisSC  
Crustaceans Taconic Cave Amphipod pdf format of Taconic Cave Amphipod Stygobromus borealisE  
Crustaceans Piedmont Groundwater Amphipod pdf format of Piedmont Groundwater Amphipod Stygobromus tenuis tenuisSC  
Crustaceans Coastal Swamp Amphipod pdf format of Coastal Swamp Amphipod Synurella chamberlainiSC  
Dragonflies Subarctic Darner pdf format of Subarctic Darner Aeshna subarcticaE  
Dragonflies Comet Darner pdf format of Comet Darner Anax longipesSC  
Dragonflies Ocellated Darner pdf format of Ocellated Darner Boyeria grafianaSC  
Dragonflies Spine-Crowned Clubtail pdf format of Spine-Crowned Clubtail Gomphus abbreviatusSC  
Dragonflies Harpoon Clubtail pdf format of Harpoon Clubtail Gomphus descriptusE  
Dragonflies Midland Clubtail pdf format of Midland Clubtail Gomphus fraternusE  
Dragonflies Rapids Clubtail pdf format of Rapids Clubtail Gomphus quadricolorE  
Dragonflies Cobra Clubtail pdf format of Cobra Clubtail Gomphus vastusSC  
Dragonflies Skillet Clubtail pdf format of Skillet Clubtail Gomphus ventricosusT  
Dragonflies Umber Shadowdragon pdf format of Umber Shadowdragon Neurocordulia obsoletaSC  
Dragonflies Stygian Shadowdragon pdf format of Stygian Shadowdragon Neurocordulia yamaskanensisSC  
Dragonflies Brook Snaketail pdf format of Brook Snaketail Ophiogomphus aspersusSC   
Dragonflies Riffle Snaketail pdf format of Riffle Snaketail Ophiogomphus carolusT  
Dragonflies Spatterdock Darner pdf format of Spatterdock Darner Rhionaeschnsaa mutataSC  
Dragonflies Ski-tipped Emerald pdf format of Ski-tipped Emerald Dragonfly Somatochlora elongataSC  
Dragonflies Forcipate Emerald pdf format of Forcipate Emerald Somatochlora forcipataE  
Dragonflies Coppery Emerald pdf format of Coppery Emerald Somatochlora georgianaE  
Dragonflies Incurvate Emerald pdf format of Incurvate Emerald Somatochlora incurvataE  
Dragonflies Kennedy's Emerald pdf format of Kennedy's Emerald Somatochlora kennedyiE  
Dragonflies Mocha Emerald pdf format of Mocha Emerald Somatochlora linearisSC  
Dragonflies Riverine Clubtail pdf format of Riverine Clubtail Stylurus amnicolaE  
Dragonflies Ebony Boghaunter pdf format of Ebony Boghaunter Williamsonia fletcheriE  
Dragonflies Ringed Boghaunter pdf format of Ringed Boghaunter Williamsonia lintneriT  
Damselflies Tule Bluet pdf format of Tule Bluet Enallagma carunculatumSC  
Damselflies Attenuated Bluet pdf format of Attenuated Bluet Enallagma daeckiiT  
Damselflies Scarlet Bluet pdf format of Scarlet Bluet Enallagma pictumT  
Damselflies Pine Barrens Bluet pdf format of Pine Barrens Bluet Enallagma recurvatumT  
Beetles Twelve-Spotted Tiger Beetle pdf format of Twelve-spotted Tiger Beetle Cicindela duodecimguttataSC  
Beetles Hentz's Redbelly Tiger Beetle pdf format of Hentz's Redbelly Tiger Beetle Cicindela rufiventris hentziiT  
Beetles Northeastern Beach Tiger Beetle pdf format of Northeastern Beach Tiger Beetle Cicindela dorsalis dorsalisE 
Beetles Bank Tiger Beetle pdf format of Bank Tiger Beetle Cicindela limbalisSC  
Beetles Cobblestone Tiger Beetle pdf format of Cobblestone Tiger Beetle Cicindela marginipennisE  
Beetles Barrens Tiger Beetle pdf format of Barrens Tiger Beetle Cicindela patruelaE  
Beetles Puritan Tiger Beetle pdf format of Puritan Tiger Beetle Cicindela puritanaE 
Beetles Purple Tiger Beetle pdf format of Purple Tiger Beetle Cicindela purpureaSC  
Beetles American Burying Beetle pdf format of American Burying Beetle Nicrophorus americanusE 
Butterflies and Moths Coastal Heathland Cutworm pdf format of Coastal Heathland Cutworm Abagrotis nefasciaSC  
Butterflies and Moths Barrens Daggermoth pdf format of Barrens Dagger Moth Acronicta albarufaT  
Butterflies and Moths Drunk Apamea Moth pdf format of Drunk Apamea Moth Apamea inebriataSC  
Butterflies and Moths New Jersey Tea Inchworm pdf format of New Jersey Tea Inchworm Apodrepanulatrix liberariaE  
Butterflies and Moths Hessel's Hairstreak pdf format of Hessel's Hairstreak Callophrys hesseliSC  
Butterflies and Moths Frosted Elfin pdf format of Frosted Elfin Callophrys irusSC  
Butterflies and Moths Bog Elfin pdf format of Bog Elfin Callophrys lanoraieensisT  
Butterflies and Moths Gerhard's Underwing pdf format of Gerhard's Underwing Catocala herodias gerhardiSC  
Butterflies and Moths Precious Underwing Moth pdf format of Precious Underwing Moth Catocala pretiosa pretiosaE  
Butterflies and Moths Waxed Sallow Moth pdf format of Waxed Sallow Moth Chaetaglaea cerataSC  
Butterflies and Moths Melsheimer's Sack Bearer pdf format of Malsheimer's Sack Bearer Cicinnus melsheimeriT  
Butterflies and Moths Chain Dot Geometer pdf format of Chain Dot Geometer Cingilia catenariaSC  
Butterflies and Moths Unexpected Cycnia pdf format of Unexpected Cycnia Cycnia inopinatusT  
Butterflies and Moths The Pink Streak pdf format of The Pink Streak Dargida rubripennisT  
Butterflies and Moths Three-Lined Angle Moth pdf format of Three-lined Angle Moth Digrammia eremiataT  
Butterflies and Moths Imperial Moth pdf format of Imperial Moth Eacles imperialisT  
Butterflies and Moths Early Hairstreak pdf format of Early Hairstreak Erora laeta  
Butterflies and Moths Persius Duskywing pdf format of Persius Duskywing Erynnis persius persiusE  
Butterflies and Moths Sandplain Euchlaena pdf format of Sandplain Euchlaena Euchlaena madusariaSC  
Butterflies and Moths Dion Skipper pdf format of Dion Skipper Euphyes dionT  
Butterflies and Moths Phyllira Tiger Moth pdf format of Phyllira Tiger Moth Grammia phylliraE  
Butterflies and Moths Slender Clearwing Sphinx Moth pdf format of Slender Clearwing Sphinx Moth Hemaris gracilisSC  
Butterflies and Moths Barrens Buckmoth pdf format of Barrens Buckmoth Hemileuca maiaSC  
Butterflies and Moths Sandplain Heterocampa pdf format of Sandplain Heterocampa Heterocampa variaT  
Butterflies and Moths Buchholz's Gray pdf format of Buchholz's Gray Hypomecis buchholzariaE  
Butterflies and Moths Pale Green Pinion Moth pdf format of Pale Green Pinion Moth Lithophane viridipallensSC  
Butterflies and Moths Twilight Moth pdf format of Twilight Moth Lycia rachelaeE  
Butterflies and Moths Pine Barrens Lycia pdf format of Pine Barrens Lycia Lycia ypsilonT  
Butterflies and Moths Barrens Metarranthis pdf format of Barrens Metarranthis Metarranthis apiciariaE  
Butterflies and Moths Coastal Swamp Metarranthis pdf format of Coastal Swamp Metarranthis Metarranthis pilosariaSC  
Butterflies and Moths Northern Brocade Moth pdf format of Northern Brocade Moth Neoligia semicanaSC  
Butterflies and Moths Pitcher Plant Borer pdf format of Pitcher Plant Borer Papaipema appassionataT  
Butterflies and Moths Ostrich Fern Borer pdf format of Ostrich Fern Borer Papaipema sp. 2SC  5
Butterflies and Moths Chain Fern Borer pdf format of Chain Fern Borer Papaipema stenocelisT  
Butterflies and Moths Water-willow Stem Borer pdf format of Water-willow Stem Borer Papaipema sulphurataT  
Butterflies and Moths Spartina Borer pdf format of Spartina Borer Photedes inopsSC  
Butterflies and Moths Mustard White pdf format of Mustard White  Pieris oleraceaT  
Butterflies and Moths Pink Sallow Moth pdf format of Pink Sallow Moth Psectraglaea carnosaSC  
Butterflies and Moths Southern Ptichodis pdf format of Southern Ptichodis Ptichodis bistrigataT  
Butterflies and Moths Orange Sallow Moth pdf format of Orange Sallow Moth Pyrrhia aurantiagoSC  
Butterflies and Moths Oak Hairstreak pdf format of Oak Hairstreak Satyrium favoniusSC  
Butterflies and Moths Pine Barrens Speranza pdf format of Pine Barrens Speranza Speranza exonerataSC  
Butterflies and Moths Faded Gray Geometer pdf format of Faded Gray Geometer Stenoporpia polygrammariaT  
Butterflies and Moths Dune Noctuid Moth pdf format of Dune Noctuid Moth Sympistis ripariaSC  
Butterflies and Moths Pine Barrens Zale pdf format of Pine Barrens Zale Zale luniferaSC  6
Butterflies and Moths Pine Barrens Zanclognatha pdf format of Pine Barrens Zanclognatha Zanclognatha marthaT  


Taxonomic GroupCommon NameScientific NameMA StatusFed StatusNotes
Adiantaceae (Cliff Ferns) Fragile Rock-brake pdf format of Fragile Rock-brake  Cryptogramma stelleriE  
Alismataceae (Arrowheads) Wapato pdf format of Wapato  Sagittaria cuneataT  
Alismataceae (Arrowheads) Estuary Arrowhead pdf format of Estuary Arrowhead  Sagittaria montevidensis ssp. spongiosaE  
Alismataceae (Arrowheads) Terete Arrowhead pdf format of Terete Arrowhead  Sagittaria teresSC  
Apiaceae (Parsleys, Angelicas) Hemlock Parsley pdf format of Hemlock Parsley  Conioselinum chinenseSC  
Apiaceae (Parsleys, Angelicas) Saltpond Pennywort pdf format of Saltpond Pennywort Hydrocotyle verticillataT  
Apiaceae (Parsleys, Angelicas) Canadian Sanicle pdf format of Canadian Sanicle Sanicula canadensisT  
Apiaceae (Parsleys, Angelicas) Long-Styled Sanicle pdf format of Long-styled Sanicle Sanicula odorataT  
Aquifoliaceae (Hollies) Mountain Winterberry pdf format of Mountain Winterberry Ilex montanaE  
Araceae (Arums) Green Dragon pdf format of Green Dragon Arisaema dracontiumT  
Araceae (Arums) Golden Club pdf format of Golden Club Orontium aquaticumE  
Araliaceae (Ginsengs) Ginseng pdf format of Ginseng Panax quinquefoliusSC  
Asclepiadaceae (Milkweeds) Purple Milkweed pdf format of Purple Milkweed Asclepias purpurascensE  
Asclepiadaceae (Milkweeds) Linear-Leaved Milkweed pdf format of Linear-leaved Milkweed Asclepias verticillataT  
Aspleniaceae (Spleenworts) Mountain Spleenwort pdf format of Mountain Spleenwort Asplenium montanumE  
Aspleniaceae (Spleenworts) Wall-Rue Spleenwort pdf format of Wall-rue Spleenwort Asplenium ruta-murariaT  
Asteraceae (Asters, Composites) Lesser Snakeroot pdf format of Lesser Snakeroot Ageratina aromaticaE  
Asteraceae (Asters, Composites) Eaton's Beggar-ticks pdf format of Eaton's Beggar-ticks Bidens eatoniiE  
Asteraceae (Asters, Composites) Estuary Beggar-ticks pdf format of Estuary Beggar-ticks Bidens hyperboreaE  
Asteraceae (Asters, Composites) Cornel-leaved Aster pdf format of Cornel-leaved Aster Doellingeria infirmaE  
Asteraceae (Asters, Composites) New England Boneset pdf format of New England Boneset Eupatorium novae-angliaeE  
Asteraceae (Asters, Composites) Purple Cudweed pdf format of Purple Cudweed Gamochaeta purpureaE  
Asteraceae (Asters, Composites) New England Blazing Star pdf format of New England Blazing Star Liatris scariosa var. novae-angliaeSC  
Asteraceae (Asters, Composites) Lion's Foot pdf format of Lion's Foot Nabalus serpentariusE  
Asteraceae (Asters, Composites) Upland White Aster pdf format of Upland White Aster Oligoneuron albumE  
Asteraceae (Asters, Composites) Sweet Coltsfoot pdf format of Sweet Coltsfoot Petasites frigidus var. palmatusE  
Asteraceae (Asters, Composites) Sclerolepis pdf format of Sclerolepis Sclerolepis unifloraE  
Asteraceae (Asters, Composites) Large-leaved Goldenrod pdf format of Large-leaved Goldenrod Solidago macrophyllaT  
Asteraceae (Asters, Composites) Rand's Goldenrod pdf format of Rand's Goldenrod Solidago simplex ssp. randii var. monticolaE  
Asteraceae (Asters, Composites) Eastern Silvery Aster pdf format of Eastern Silvery Aster Symphyotrichum concolorE  
Asteraceae (Asters, Composites) Crooked-Stem Aster pdf format of Crooked-stem Aster Symphyotrichum prenanthoidesSC  
Asteraceae (Asters, Composites) Tradescant's Aster pdf format of Tradescant's Aster Symphyotrichum tradescantiiT  
Betulaceae (Birches, Alders) Mountain Alder pdf format of Mountain Alder Alnus viridis ssp. crispaT  
Betulaceae (Birches, Alders) Swamp Birch pdf format of Swamp Birch Betula pumilaE  
Boraginaceae (Borages) Northern Wild Comfrey pdf format of Northern Wild Comfrey Cynoglossum virginianum var. borealeE  
Boraginaceae (Borages) Oysterleaf pdf format of Oysterleaf Mertensia maritimaE  
Brassicaceae (Mustards) Lyre-Leaved Rock-cress pdf format of Lyre-leaved Rock-cress Arabidopsis lyrataE  
Brassicaceae (Mustards) Smooth Rock-cress pdf format of Smooth Rock-cress Boechera laevigataSC  
Brassicaceae (Mustards) Green Rock-cress pdf format of Green Rock-cress Boechera missouriensisT  
Brassicaceae (Mustards) Fen Cuckoo Flower pdf format of Fen Cuckoo Flower Cardamine dentataT  
Brassicaceae (Mustards) Purple Cress pdf format of Purple Cress Cardamine douglassiiE  
Brassicaceae (Mustards) Long's Bitter-cress pdf format of Long's Bitter-cress Cardamine longiiE  
Cactaceae (Cacti) Prickly Pear pdf format of Prickly Pear Opuntia humifusaE  
Campanulaceae (Bluebells, Lobelias) Great Blue Lobelia pdf format of Great Blue Lobelia Lobelia siphiliticaE  
Caprifoliaceae (Honeysuckles) Hairy Honeysuckle pdf format of Hairy Honeysuckle Lonicera hirsutaE  
Caprifoliaceae (Honeysuckles) Snowberry pdf format of Snowberry Symphoricarpos albus var. albusE  
Caprifoliaceae (Honeysuckles) Broad Tinker's-weed pdf format of triosteum_perfoliatum Triosteum perfoliatumE  
Caprifoliaceae (Honeysuckles) Downy Arrow-wood pdf format of Downy Arrow-wood Viburnum rafinesquianumE  
Caryophyllaceae (Pinks, Sandworts) Nodding Chickweed pdf format of Nodding Chickweed Cerastium nutansE  
Caryophyllaceae (Pinks, Sandworts) Michaux's Sandwort pdf format of Michaux's Sandwort Minuartia michauxiiT  
Caryophyllaceae (Pinks, Sandworts) Large-leaved Sandwort pdf format of Large-leaved Sandwort Moehringia macrophyllaE  
Caryophyllaceae (Pinks, Sandworts) Silverling pdf format of Silverling Paronychia argyrocomaE  
Celastraceae (Staff Tree Family) American Bittersweet pdf format of American Bittersweet Celastrus scandensT  
Chenopodiaceae (Saltworts) Fogg's Goosefoot pdf format of Fogg's Goosefoot Chenopodium foggiiE  
Chenopodiaceae (Saltworts) American Sea-blite pdf format of American Sea-blite Suaeda calceoliformisSC  
Cistaceae (Rockroses, Pinweeds) Bushy Rockrose pdf format of Bushy Rockrose Crocanthemum dumosumSC  
Cistaceae (Rockroses, Pinweeds) Beaded Pinweed pdf format of Bead Pinweed Lechea pulchella var. moniliformisE  
Clusiaceae (St. John's-worts) Creeping St. John's-wort pdf format of Creeping St. John's-wort Hypericum adpressumT  
Clusiaceae (St. John's-worts) Giant St. John's-wort pdf format of Giant St. John's-wort Hypericum ascyronE  
Clusiaceae (St. John's-worts) St. Andrew's Cross pdf format of St. Andrew's Cross Hypericum stragulumE  
Convolvulaceae (Morning Glories) Low Bindweed pdf format of Low Bindweed Calystegia spithamaeaE  
Crassulaceae (Sedums) Pygmyweed pdf format of Pygmyweed Crassula aquaticaT  
Cupressaceae (Cedars, Junipers) Arborvitae pdf format of Arborvitea Thuja occidentalisE  
Cyperaceae (Sedges) Foxtail Sedge pdf format of Foxtail Sedge Carex alopecoidea T  
Cyperaceae (Sedges) Back's Sedge pdf format of Back's Sedge Carex backiiE  
Cyperaceae (Sedges) Bailey's Sedge pdf format of Bailey's Sedge Carex baileyiT  
Cyperaceae (Sedges) Bush's Sedge pdf format of Bush's Sedge Carex bushiiE  
Cyperaceae (Sedges) Chestnut-colored Sedge pdf format of Chestnut-colored Sedge Carex castaneaE  
Cyperaceae (Sedges) Creeping Sedge pdf format of Creeping Sedge Carex chordorrhizaE  
Cyperaceae (Sedges) Davis' Sedge pdf format of Davis' Sedge Carex davisii  
Cyperaceae (Sedges) Handsome Sedge pdf format of Handsome Sedge Carex formosaT  
Cyperaceae (Sedges) Glaucescent Sedge pdf format of Glaucescent Sedge  Carex glaucodeaE  
Cyperaceae (Sedges) Slender Woodland Sedge pdf format of Slender Woodland Sedge Carex gracilescensE  
Cyperaceae (Sedges) Gray's Sedge pdf format of Gray's Sedge Carex grayiT  
Cyperaceae (Sedges) Hitchcock's Sedge pdf format of Hitchcock's Sedge Carex hitchcockianaSC  
Cyperaceae (Sedges) Shore Sedge pdf format of Shore Sedge Carex lenticularisT  
Cyperaceae (Sedges) Glaucous Sedge pdf format of Glaucous Sedge Carex lividaE  
Cyperaceae (Sedges) False Hop-sedge pdf format of False Hop Sedge Carex lupuliformisE  
Cyperaceae (Sedges) Midland Sedge pdf format of Midland Sedge Carex mesochoreaE  
Cyperaceae (Sedges) Michaux's Sedge pdf format of Michaux's Sedge Carex michauxianaE  
Cyperaceae (Sedges) Mitchell's Sedge pdf format of Mitchell's Sedge Carex mitchellianaT  
Cyperaceae (Sedges) Rich Woods Sedge pdf format of Rich Woods Sedge Carex oligocarpaT  
Cyperaceae (Sedges) Few-seeded Sedge pdf format of Few-seeded Sedge Carex oligospermaE  
Cyperaceae (Sedges) Few-flowered Sedge pdf format of Few-flowered Sedge Carex paucifloraE  
Cyperaceae (Sedges) Variable Sedge pdf format of Variable Sedge Carex polymorphaE  
Cyperaceae (Sedges) Schweinitz's Sedge pdf format of Schweinitz's Sedge Carex schweinitziiE  
Cyperaceae (Sedges) Dioecious Sedge pdf format of Dioecious Sedge Carex sterilisT  
Cyperaceae (Sedges) Walter's Sedge pdf format of Walter's Sedge Carex striataE  
Cyperaceae (Sedges) Fen Sedge pdf format of Fen Sedge Carex tetanicaSC  
Cyperaceae (Sedges) Hairy-fruited Sedge pdf format of Hairy-fruited Sedge Carex trichocarpaSC  
Cyperaceae (Sedges) Tuckerman's Sedge pdf format of Tuckerman's Sedge Carex tuckermanii E  
Cyperaceae (Sedges)  Cat-tail Sedge pdf format of Cat-Tail Sedge Carex typhina T  
Cyperaceae (Sedges) Engelmann's Umbrella-sedge pdf format of Engelmann's Umbrella-sedge Cyperus engelmannii T  
 Cyperaceae (Sedges) Houghton's Flatsedge pdf format of Houghton's Flatsedge Cyperus houghtonii E  
Cyperaceae (Sedges) Wright's Spike-rush pdf format of Wright's Spike-rush Eleocharis diandraE  
Cyperaceae (Sedges) Intermediate Spike-sedge pdf format of Intermediate Spike-sedge Eleocharis intermediaT  
Cyperaceae (Sedges) Tiny-fruited Spike-rush or Spike-sedge pdf format of Tiny-fruited Spike-sedge Eleocharis microcarpa var. filiculmisE  
Cyperaceae (Sedges) Ovate Spike-rush or Spike-sedge pdf format of Ovate Spike-sedge Eleocharis ovataE  
Cyperaceae (Sedges) Few-flowered Spike-sedge pdf format of Few-flowered Spike-sedge Eleocharis quinquefloraE  
Cyperaceae (Sedges) Three-angled Spike-sedge pdf format of Three-angled Spike-sedge Eleocharis tricostataE  
Cyperaceae (Sedges) Slender Cottongrass pdf format of Slender Cottongrass Eriophorum gracileT  
Cyperaceae (Sedges) Dwarf Bulrush pdf format of Dwarf Bulrush Lipocarpha micranthaT  
Cyperaceae (Sedges) Capillary Beak-sedge pdf format of Capillary Beak-sedge Rhynchospora capillaceaE  
Cyperaceae (Sedges) Inundated Horned-sedge pdf format of rhynchospora_inundata Rhynchospora inundataT  
Cyperaceae (Sedges) Short-beaked Bald-sedge pdf format of Short-beaked Bald-sedge Rhynchospora nitensT  
Cyperaceae (Sedges) Long-beaked Bald-sedge pdf format of Long-beaked Bald-sedge Rhynchospora scirpoidesSC  
Cyperaceae (Sedges) Torrey's Beak-sedge pdf format of Torrey's Beak-sedge Rhynchospora torreyanaE  
Cyperaceae (Sedges) Northeastern Bulrush pdf format of Northeastern Bulrush Scirpus ancistrochaetusEE 
Cyperaceae (Sedges) Long's Bulrush pdf format of Long's Bulrush Scirpus longiiT  
Cyperaceae (Sedges) Papillose Nut-sedge pdf format of Papillose Nut-sedge Scleria paucifloraE 7
Cyperaceae (Sedges) Tall Nut-sedge pdf format of Tall Nut-sedge Scleria triglomerataE  
Dryopteridaceae (Wood Ferns) Braun's Holly-fern pdf format of Braun's Holly-fern Polystichum brauniiE  
Dryopteridaceae (Wood Ferns) Smooth Woodsia pdf format of Smooth Woodsia Woodsia glabellaE  
Elatinaceae (Waterworts) American Waterwort pdf format of American Waterwort Elatine americana  
Equisetaceae (Horsetails) Dwarf Scouring-rush pdf format of Dwarf Scouring-rush Equisetum scirpoides SC  
Ericaceae (Laurels, Blueberries) Great Laurel pdf format of Great Laurel Rhododendron maximumT  
Ericaceae (Laurels, Blueberries) Mountain Cranberry pdf format of Mountain Cranberry Vaccinium vitis-idaea ssp. minusE  
Eriocaulaceae (Pipeworts) Parker's Pipewort pdf format of Parker's Pipewort Eriocaulon parkeriE  
Fabaceae (Beans, Peas, Clovers) Large-bracted Tick-trefoil pdf format of Large-bracted Tick-trefoil Desmodium cuspidatumT  
Fabaceae (Beans, Peas, Clovers) Wild Senna pdf format of Wild Senna Senna hebecarpaE  
Fagaceae (Oaks, Beeches) Bur Oak pdf format of Bur Oak Quercus macrocarpaSC  
Fagaceae (Oaks, Beeches) Yellow Oak pdf format of Yellow Oak Quercus muehlenbergii T  
Fumariaceae (Fumitories) Climbing Fumitory pdf format of Climbing Fumitory Adlumia fungosaSC   
Gentianaceae (Gentians) Andrew's Bottle Gentian pdf format of Andrew's Bottle Gentian Gentiana andrewsiiE  
Gentianaceae (Gentians) Spurred Gentian pdf format of Spurred Gentian Halenia deflexaE  
Gentianaceae (Gentians) Slender Marsh Pink pdf format of Slender Marsh Pink Sabatia campanulataE  
Gentianaceae (Gentians) Plymouth Gentian pdf format of Plymouth Gentian Sabatia kennedyanaSC  
Gentianaceae (Gentians) Sea Pink pdf format of Sea Pink Sabatia stellarisE  
Grossulariaceae (Currants) Bristly Black Currant pdf format of Bristly Black Currant Ribes lacustreSC  
Haemodoraceae (Redroots) Redroot pdf format of Redroot Lachnanthes carolianaSC  
Haloragaceae (Water-milfoils) Alternate-flowered Water-milfoil pdf format of Alternate-flowered Water-milfoil Myriophyllum alterniflorumE  
Haloragaceae (Water-milfoils) Farwell's Water-milfoil pdf format of Farwell's Water-Milfoil Myriophyllum farwelliiE  
Haloragaceae (Water-milfoils) Pinnate Water-milfoil pdf format of Pinnate Water-Milfoil Myriophyllum pinnatumSC  
Haloragaceae (Water-milfoils) Comb Water-milfoil pdf format of Comb Water-milfoil Myriophyllum verticillatumE  
Hydrophyllaceae (Waterleaves) Broad Waterleaf pdf format of Broad Waterleaf Hydrophyllum canadenseE  
Hymenophyllaceae (Filmy-ferns) Appalachian Bristle-fern pdf format of Appalachian Bristle-fern Trichomanes intricatumE  
Iridaceae (Irises) Sandplain Blue-eyed Grass pdf format of Sandplain Blue-eyed Grass Sisyrinchium fuscatumSC  
Iridaceae (Irises) Slender Blue-eyed Grass pdf format of Slender Blue-Eyed Grass Sisyrinchium mucronatumE  
Isoetaceae (Quillworts) Acadian Quillwort pdf format of Acadian Quillwort Isoetes acadiensisE  
Isoetaceae (Quillworts) Lake Quillwort pdf format of Lake Quillwort Isoetes lacustrisE  
Juncaceae (Rushes) Weak Rush pdf format of Weak Rush Juncus debilisE  
Juncaceae (Rushes) Thread Rush pdf format of Weak Rush Juncus filiformisE  
Juncaceae (Rushes) Black-fruited Woodrush pdf format of Black-fruited Woodrush Luzula parviflora ssp. melanocarpaE  
Lamiaceae (Mints) Purple Giant-hyssop pdf format of Purple Giant Hyssop Agastache scrophulariifoliaE  
Lamiaceae (Mints) Downy Wood-mint pdf format of Downy Wood-mint Blephilia ciliataE  
Lamiaceae (Mints) Hairy Wood-mint pdf format of Hairy Wood-mint Blephilia hirsutaE  
Lamiaceae (Mints) Gypsywort pdf format of Gypsywort Lycopus rubellusE  
Lamiaceae (Mints) False Pennyroyal pdf format of False Pennyroyal Trichostema brachiatumE  
Lentibulariaceae (Bladderworts) Resupinate Bladderwort pdf format of Resupinate Bladderwort Utricularia resupinataT  
Lentibulariaceae (Bladderworts) Subulate Bladderwort pdf format of Subulate Bladderwort Utricularia subulataSC  
Liliaceae (Lilies) Devil's-bit pdf format of Devil's-bit Chamaelirium luteumE  
Linaceae (Flaxes) Sandplain Flax pdf format of Sandplain Flax Linum intercursumSC  
Linaceae (Flaxes) Rigid Flax pdf format of Rigid Flax Linum medium var. texanumT  
Lycopodiaceae (Clubmosses) Foxtail Clubmoss pdf format of Foxtail Clubmoss Lycopodiella alopecuroidesE  
Lycopodiaceae (Clubmosses) Appalachian Firmoss pdf format of Appalachian Fir-moss Huperzia appressaE  
Lycopodiaceae (Clubmosses) Mountain Firmoss pdf format of Mountain Firmoss Huperzia selagoE  
Lythraceae (Loosestrifes) Toothcup pdf format of Toothcup Rotala ramosiorE  
Magnoliaceae (Magnolias) Sweetbay Magnolia pdf format of Sweet Bay Magnolia virginianaE  
Melastomataceae (Meadow Beauties) Maryland Meadow Beauty pdf format of Maryland Meadow Beauty Rhexia marianaE  
Moraceae (Mulberries) Red Mulberry pdf format of Red Mulberry Morus rubraE  
Nymphaeaceae (Water Lilies) Tiny Cow-lily pdf format of Tiny Cow-lily Nuphar microphyllaE  
Onagraceae (Evening Primroses) Many-fruited False-loosestrife pdf format of Many-fruited False-loosestrife Ludwigia polycarpaE  
Onagraceae (Evening Primroses) Round-fruited False-loosestrife pdf format of Round-fruited False-loosestrife Ludwigia sphaerocarpaE  
Ophioglossaceae (Grape Ferns) Adder's-tongue Fern pdf format of Adder's Tongue Fern Ophioglossum pusillumT  
Orchidaceae (Orchids) Putty-root pdf format of Putty-root Aplectrum hyemale  
Orchidaceae (Orchids) Arethusa pdf format of Arethusa Arethusa bulbosa  
Orchidaceae (Orchids) Autumn Coralroot pdf format of Autumn Coralroot Corallorhiza odontorhiza SC   
Orchidaceae (Orchids) Ram's-head Lady's-slipper pdf format of Ram's Head Lady's-slipper Cypripedium arietinum   
Orchidaceae (Orchids)  Small Yellow Lady's-slipper pdf format of Small Yellow Lady's Slipper  Cypripedium parviflorum var. makasinE  
Orchidaceae (Orchids) Showy Lady's-slipper pdf format of Showy Lady's-slipper Cypripedium reginaeE  
Orchidaceae (Orchids) Dwarf Rattlesnake-plantain pdf format of Dwarf Rattlesnake-plantain Goodyera repensE  
Orchidaceae (Orchids) Small Whorled Pogonia pdf format of Small Whorled Pogonia Isotria medeoloidesET 
Orchidaceae (Orchids) Lily-leaf Twayblade pdf format of Lily-leaf Twayblade Liparis liliifoliaT  
Orchidaceae (Orchids) Heartleaf Twayblade pdf format of Heartleaf Twayblade Listera cordataE  
Orchidaceae (Orchids) Bayard's Green Adder's-mouth pdf format of malaxis bayardii - new Malaxis bayardiiE  
Orchidaceae (Orchids) White Adder's-mouth pdf format of White Adder's-mouth Malaxis monophyllos var. brachypodaE  
Orchidaceae (Orchids) Crested Fringed Orchis pdf format of Crested Fringed Orchis Platanthera cristataE  
Orchidaceae (Orchids) Leafy White Orchis pdf format of Leafy White Orchis Platanthera dilatataT  
Orchidaceae (Orchids) Pale Green Orchis pdf format of Pale Green Orchis Platanthera flava var. herbiolaT  
Orchidaceae (Orchids) Hooded Ladies'-tresses pdf format of Hooded Ladies'-tresses Spiranthes romanzoffianaE  
Orchidaceae (Orchids) Grass-leaved Ladies'-tresses pdf format of Grass-leaved Ladies'-tresses Spiranthes vernalisT  
Orchidaceae (Orchids) Cranefly Orchid pdf format of Cranefly Orchid Tipularia discolorE  
Orchidaceae (Orchids) Nodding Pogonia pdf format of Nodding Pogonia Triphora trianthophoraE  
Oxalidaceae (Wood-sorrels)  Violet Wood-sorrel pdf format of Violet Wood-sorrel Oxalis violaceaE  
Poaceae (Grasses)  Annual Peanutgrass pdf format of Annual Peanut-grass Amphicarpum amphicarponE  
Poaceae (Grasses)  Purple Needlegrass pdf format of Purple Needlegrass Aristida purpurascensT  
Poaceae (Grasses)  Seabeach Needlegrass pdf format of Seabeach Needlegrass Aristida tuberculosaT  
Poaceae (Grasses)  Reed Bentgrass pdf format of Reed Bentgrass Calamagrostis pickeringiiE  
Poaceae (Grasses)  New England Northern Reedgrass pdf format of New England Northern Reed Grass Calamagrostis stricta ssp. inexpansaE  
Poaceae (Grasses)  Tufted Hairgrass pdf format of Tufted Hairgrass Deschampsia cespitosa ssp. glaucaE  
Poaceae (Grasses)  Mattamuskeet Panic-grass pdf format of Mattamuskeet Panic-grass Dichanthelium dichotomum ssp. mattamuskeetenseE  
Poaceae (Grasses) Common's Panic-grass pdf format of Common's Panic-grass Dichanthelium ovale ssp. pseudopubescensSC  
Poaceae (Grasses)  Rough Panic-grass pdf format of Rough Panic-grass Dichanthelium scabriusculumT  
Poaceae (Grasses)  Wright's Panic-grass pdf format of Wright's Panic-grass Dichanthelium wrightianumSC  
Poaceae (Grasses)  Hairy Wild Rye pdf format of Hairy Wild Rye Elymus villosusE  
Poaceae (Grasses)  Frank's Lovegrass pdf format of Frank's Lovegrass Eragrostis frankiiSC  
Poaceae (Grasses)  Saltpond Grass pdf format of Saltpond Grass Leptochloa fusca ssp. fascicularisT  
Poaceae (Grasses)  Sea Lyme-grass pdf format of Sea Lyme-grass Leymus mollisE  
Poaceae (Grasses)  Woodland Millet pdf format of Woodland Millet Milium effusumT  
Poaceae (Grasses)  Gattinger's Panic-grass pdf format of Gattinger's Panic-grass Panicum philadelphicum ssp. gattingeriSC  
Poaceae (Grasses) Philadelphia Panic-grass pdf format of Gattinger's Panic-grass Panicum philadelphicum ssp. philadelphicumSC  
Poaceae (Grasses)  Long-leaved Panic-grass pdf format of Long-Leaved Panic-grass Panicum rigidulum ssp. pubescensT  
Poaceae (Grasses)  Drooping Speargrass pdf format of Drooping Speargrass Poa saltuensis ssp. languidaE  
Poaceae (Grasses)  Bristly Foxtail pdf format of Bristly Foxtail Setaria parvifloraSC  
Poaceae (Grasses)  Salt Reedgrass pdf format of Salt Reedgrass Spartina cynosuroidesT  
Poaceae (Grasses)  Shining Wedgegrass pdf format of Shining Wedgegrass Sphenopholis nitidaT  
Poaceae (Grasses)  Swamp Oats pdf format of Swamp Oats Sphenopholis pensylvanicaT  
Poaceae (Grasses)  Small Dropseed pdf format of Small Dropseed Sporobolus neglectusE  
Poaceae (Grasses)  Northern Gama-grass pdf format of Northern Gama-grass  Tripsacum dactyloidesE  
Poaceae (Grasses)  Spiked False-oats pdf format of Spiked False Oats Trisetum spicatumE  
Polygonaceae (Docks, Knotweeds) Pondshore Knotweed pdf format of Pondshore Knotweed  Persicaria puritanorumSC  
Polygonaceae (Docks, Knotweeds) Strigose Knotweed pdf format of Strigose Knotweed Persicaria setaceaT  
Polygonaceae (Docks, Knotweeds) Sea-beach Knotweed pdf format of Sea-beach Knotweed Polygonum glaucumSC  
Polygonaceae (Docks, Knotweeds) Seabeach Dock pdf format of Seabeach Dock  Rumex pallidusT  
Polygonaceae (Docks, Knotweeds) Swamp Dock pdf format of Swamp Dock  Rumex verticillatusT  
Portulacaceae (Spring Beauties)  Narrow-leaved Spring Beauty pdf format of Narrow-leaved Spring Beauty Claytonia virginicaE  
Potamogetonaceae (Pondweeds)  Algae-like Pondweed pdf format of Algae-like Pondweed Potamogeton confervoidesT  
Potamogetonaceae (Pondweeds)   Fries' Pondweed pdf format of Fries' Pondweed  Potamogeton friesiiE  
Potamogetonaceae (Pondweeds)   Hill's Pondweed pdf format of Hill's Pondweed Potamogeton hilliiSC  
Potamogetonaceae (Pondweeds)   Ogden's Pondweed pdf format of Ogden's Pondweed  Potamogeton ogdeniiE  
Potamogetonaceae (Pondweeds)   Straight-leaved Pondweed pdf format of Straight-leaved Pondweed  Potamogeton strictifoliusE  
Potamogetonaceae (Pondweeds)   Vasey's Pondweed pdf format of Vasey's Pondweed  Potamogeton vaseyiE  
Pyrolaceae (Shinleaf)  Pink Pyrola pdf format of Pink Pyrola Pyrola asarifolia ssp. asarifoliaE  
Ranunculaceae (Buttercups)  Black Cohosh pdf format of Black Cohosh Actaea racemosaE  
Ranunculaceae (Buttercups)   Purple Clematis pdf format of Purple Clematis  Clematis occidentalisSC  
Ranunculaceae (Buttercups)   Golden Seal pdf format of Golden Seal  Hydrastis canadensisE  
Ranunculaceae (Buttercups)  Tiny-flowered Buttercup pdf format of Tiny-flowered Buttercup Ranunculus micranthusE  
Ranunculaceae (Buttercups)  Bristly Buttercup pdf format of Bristly Buttercup Ranunculus pensylvanicusSC  
Rosaceae (Roses, Shadbushes)  Small-flowered Agrimony pdf format of Small-flowered Agrimony Agrimonia parvifloraE  
Rosaceae (Roses, Shadbushes)   Hairy Agrimony pdf format of Hairy Agrimony  Agrimonia pubescensT  
Rosaceae (Roses, Shadbushes)   Bartram's Shadbush pdf format of Bartram's Shadbush  Amelanchier bartramianaT  
Rosaceae (Roses, Shadbushes) Roundleaf Shadbush pdf format of Round-leaf Shadbush Amelanchier sanguineaSC  
Rosaceae (Roses, Shadbushes)   Bicknell's Hawthorn pdf format of Bicknell's Hawthorn  Crataegus bicknelliiE  
Rosaceae (Roses, Shadbushes)   Barren Strawberry pdf format of Barren Strawberry  Geum fragarioidesSC  
Rosaceae (Roses, Shadbushes)   Sandbar Cherry pdf format of Sandbar Cherry  Prunus pumila var. depressaT  
Rosaceae (Roses, Shadbushes)   Northern Prickly Rose pdf format of Northern Prickly Rose  Rosa acicularis ssp. sayiE  
Rosaceae (Roses, Shadbushes)   Northern Mountain-ash pdf format of Northern Mountain Ash  Sorbus decoraE  
Rubiaceae (Bedstraws, Bluets) Northern Bedstraw pdf format of Northern Bedstraw Galium borealeE  
Rubiaceae (Bedstraws, Bluets) Labrador Bedstraw pdf format of Labrador Bedstraw Galium labradoricumT  
Rubiaceae (Bedstraws, Bluets) Long-leaved Bluet pdf format of Long-leaved Bluet Houstonia longifoliaE  
Salicaceae (Willows) Swamp Cottonwood pdf format of Swamp Cottonwood Populus heterophyllaE  
Salicaceae (Willows) Sandbar Willow pdf format of Sandbar Willow Salix exigua ssp. interiorT  
Scheuchzeriaceae (Pod-grasses)  Pod-grass pdf format of Pod-grass Scheuchzeria palustrisE  
Schizaeaceae (Climbing Ferns)  Climbing Fern pdf format of Climbing Fern Lygodium palmatumSC  
Scrophulariaceae (Figworts) Sandplain Gerardia pdf format of Sandplain Gerardia Agalinis acutaEE 
Scrophulariaceae (Figworts) Winged Monkey-flower pdf format of Winged Monkey-flower Mimulus alatusE  
Scrophularceae (Figworts) Muskflower pdf format of Muskflower Mimulus moschatusE  
Scrophulariaceae (Figworts) Swamp Lousewort pdf format of Swamp Lousewort Pedicularis lanceolataE  
Scrophulariaceae (Figworts) Hairy Beardtongue pdf format of Hairy Beardtongue Penstemon hirsutusE  
Scrophulariaceae (Figworts) Sessile Water-speedwell pdf format of Sessile Water-speedwell Veronica catenataE  
Scrophulariaceae (Figworts) Culver's-root pdf format of Culver's-root Veronicastrum virginicumT  
Sparganiaceae (Bur-reeds)  Small Bur-reed pdf format of Small Bur-reed Sparganium natansE  
Verbenaceae (Vervains)  Narrow-leaved Vervain pdf format of Narrow-leaved Vervain Verbena simplexE  
Violaceae (Violets) Sand Violet pdf format of Sand Violet Viola aduncaSC  
Violaceae (Violets) Britton's Violet pdf format of Britton's Violet Viola brittonianaT  
Viscaceae (Christmas-mistletoes) Dwarf Mistletoe pdf format of Dwarf Mistletoe Arceuthobium pusillumSC  

1. Trimorphic freshwater population only.

2. Including triploid and other polyploid forms within the Ambystoma jeffersonianum/Ambystoma laterale complex.

3. Ditto

4. This species is listed by the U. S. Fish and Wildlife Service as P. r. bangsi (Plymouth Redbelly Turtle) in 50 CFR 17.11.

5. Undescribed species near P. pterisii

6. True Z. lunifera, sensu Schmidt (2010)

7. Includes the two varieties of this species that occur in Massachusetts: s.p. var. pauciflora and s.p. var. caroliniana.


"Endangered" (E) species are native species which are in danger of extinction throughout all or part of their range, or which are in danger of extirpation from Massachusetts, as documented by biological research and inventory.

"Threatened" (T) species are native species which are likely to become endangered in the foreseeable future, or which are declining or rare as determined by biological research and inventory.

"Special concern" (SC) species are native species which have been documented by biological research or inventory to have suffered a decline that could threaten the species if allowed to continue unchecked, or which occur in such small numbers or with such restricted distribution or specialized habitat requirements that they could easily become threatened within Massachusetts.

Any native species listed as endangered or threatened by the U.S. Fish and Wildlife Service is also included on the state list. The rules and regulations and precise definitions relative to the establishment of the Commonwealth's list of endangered, threatened, and special concern species are set forth in 321 CMR 10.00 et seq. View a key to the Federal Status abbreviations appearing on the list.

1. Introduction - The list in 321 CMR 10.90 contains the names of all species of plants and animals which have been determined to be Endangered, Threatened, or of Special Concern pursuant to M.G.L. c. 131A and 321 CMR 10.03.

2. List Format - The columns entitled "Common Name" and "Scientific Name" define the species listed. In the "Status" columns the following symbols are used: "E" for Endangered, "T" for Threatened, and "SC" for Special Concern. The status defined under the "MA" column denotes the official status of the species in Massachusetts pursuant to M.G.L. c. 131A and 321 CMR 10.00. The status under the "US" column is the status of the species under the federal Endangered Species Act at the time of the latest revision of 321 CMR 10.00 and is given for informational purposes only. Recent changes in the federal list might not be reflected on this list. The U.S. Fish and Wildlife Service should be consulted for official and up to date information on the federal status of any species. Inquiries may be made by writing to U.S. Fish and Wildlife Service, 70 Commercial Street, Suite 300, Concord, NH 03301-5087. The "Taxonomic Family/Taxonomic Group" column of the list is included for the purpose of organization. The "Notes" column directs the reader to footnotes which further define or clarify the status of a species or alternative names of species.

3. Organization of the List - The list is generally organized according to the relationship of the listed species as determined by the science of taxonomy, which groups and categorizes species that are similar on the basis of shared evolutionary descent. The most basic division in the list is between animals and plants. Within animals the list is divided between vertebrates, (animals with backbones) and invertebrates (animals without backbones). Within vertebrates, invertebrates, and plants, the list is further divided into categories which are generally recognized, such as fish, mammals, dragonflies, and violets. All such information has no regulatory effect and is provided only for the purpose of organizing the list.