List of Endangered, Threatened, and Special Concern species

Massachusetts is home to a wide variety of plants and animals. Some species have their most stable populations here, and some are relatively common. Other species are unique to Massachusetts and occur naturally in the state. There are 173 species of animals and 259 species of plants that are protected under the Massachusetts Endangered Species Act. These 432 native species are listed as Endangered (E), Threatened (T), or of Special Concern (SC) and are tracked in our database. These species are either at risk, or may become at risk, of extinction. Rarity in the state, population trend, and overall threat are the main criteria used to determine extinction risk. 

Summary of the MESA list

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". 

As listed in 321 CMR 10.90, January 10, 2020

Taxonomic Group	Endangered	Threatened	Special Concern	Totals
Mammals (including 6 whales)	11 (6 FE, 1 FT)	0	3	14
Birds (breeding)	9 (1 FE)	7 (2 FT)	14	30
Reptiles (including 5 sea turtles)	8 (4 FE, 1 FT)	5 (2 FT)	3	16
Amphibians	0	3	2	4*
Fish	4 (2 FE)	2 (1 FT)	4	10
Invertebrates (non-marine only)	32 (2 FE, 2 FT)	25	42	99
Plants (vascular)	153 (3 FE, 1 FT)	66	40	259
Totals	217 (18 FE, 5 FT)	108 (5 FT)	108 (0)	432*  (27 FE or FT**)

*Blue-spotted Salamander (Ambystoma laterale) counted as 1 species, but is Threatened in Bristol and Plymouth Counties, Special Concern in other counties.

**Atlantic Sturgeon (Acipenser oxyrinchus) counted as 1 species, but is FE in the Connecticut River and FT in the Merrimack River.

FE = species listed under the U.S. Endangered Species Act as Federally Endangered.

FT = species listed under the U.S. Endangered Species Act as Federally Threatened.

 

Additional Resources

Listing Endangered Species in Massachusetts

Species Listing Proposal Form

Printable List of Endangered, Threatened, and Special Concern Species

List of Species

Click on the common name for a fact sheet outlining the description, habitat, threats, life history, etc. for that species.  

Fish

Common Name	Scientific Name	MA Status	Fed Status	Notes
Shortnose Sturgeon	Acipenser brevirostrum	E	E
Atlantic Sturgeon	Acipenser oxyrinchus	E	E/T	NY Bight (Connecticut and Taunton Rivers in Massachusetts) Endangered; Gulf of Maine (Merrimack River in Massachusetts) Threatened.
Longnose Sucker	Catostomus catostomus	SC
Northern Redbelly Dace	Chrosomus eos	E
Lake Chub	Couesius plumbeus	E
Threespine Stickleback	Gasterosteus aculeatus	T		Trimorphic freshwater population only.
Eastern Silvery Minnow	Hybognathus regius	SC
American Brook Lamprey	Lethenteron appendix	T
Burbot	Lota lota	SC
Bridle Shiner	Notropis bifrenatus	SC

Amphibians

Common Name	Scientific Name	MA Status	Fed Status	Notes
Jefferson Salamander (complex)	Ambystoma jeffersonianum	SC		Complex consisting of the genetically pure lineage and its associated unisexual forms (statewide).
Blue-spotted Salamander (complex)	Ambystoma laterale pop. 1	SC		“Population 1”; complex consisting of the genetically pure lineage and its associated unisexual forms (jurisdictions outside Bristol and Plymouth Counties).
Blue-spotted Salamander	Ambystoma laterale pop. 2	T		“Population 2”; consists of the genetically pure lineage (Bristol and Plymouth Counties only).
Marbled Salamander	Ambystoma opacum	T
Eastern Spadefoot	Scaphiopus holbrookii	T

Reptiles

Common Name	Scientific Name	MA Status	Fed Status	Notes
Copperhead	Agkistrodon contortrix	E
Loggerhead Sea Turtle	Caretta caretta	T	T
Eastern Wormsnake	Carphophis amoenus	T
Green Sea Turtle	Chelonia mydas	T	T
Timber Rattlesnake	Crotalus horridus	E
Leatherback Sea Turtle	Dermochelys coriacea	E	E
Blanding's Turtle	Emydoidea blandingii	T
Atlantic Hawksbill Sea Turtle	Eretmochelys imbricata	E	E
Wood Turtle	Glyptemys insculpta	SC
Bog Turtle	Glyptemys muhlenbergii	E	T
Eastern Hog-nosed Snake	Heterodon platirhinos	SC
Kemp's Ridley Sea Turtle	Lepidochelys kempii	E	E
Northern Diamond-backed Terrapin	Malaclemys terrapin	T
Eastern Ratsnake	Pantherophis alleghaniensis	E
Northern Red-bellied Cooter	Pseudemys rubriventris	E	E	This species is listed by the U.S. Fish & Wildlife Service as P.r. bangsi (Plymouth Redbelly Turtle) in 50 CFR 17.11.
Eastern Box Turtle	Terrapene carolina	SC

Birds

Common Name	Scientific Name	MAStatus	Fed Status	Notes
Grasshopper Sparrow	Ammodramus savannarum	T
Saltmarsh Sparrow	Ammospiza caudacuta	SC
Eastern Whip-poor-will	Antrostomus vociferus	SC
Short-eared Owl	Asio flammeus	E
Long-eared Owl	Asio otus	SC
Upland Sandpiper	Bartramia longicauda	E
American Bittern	Botaurus lentiginosus	E
Red Knot	Calidris canutus	T	T
Piping Plover	Charadrius melodus	T	T
Northern Harrier	Circus hudsonius	T
Sedge Wren	Cistothorus platensis	E
Peregrine Falcon	Falco peregrinus	SC
Common Gallinule	Gallinula galeata	SC
Common Loon	Gavia immer	SC
Mourning Warbler	Geothlypis philadelphia	SC
Bald Eagle	Haliaeetus leucocephalus	SC
Least Bittern	Ixobrychus exilis	E
Leach's Storm-petrel	Oceanodroma leucorhoa	E
Pied-billed Grebe	Podilymbus podiceps	E
Vesper Sparrow	Pooecetes gramineus	T
King Rail	Rallus elegans	T
Northern Parula	Setophaga americana	T
Blackpoll Warbler	Setophaga striata	SC
Roseate Tern	Sterna dougallii	E	E
Common Tern	Sterna hirundo	SC
Arctic Tern	Sterna paradisaea	SC
Least Tern	Sternula antillarum	SC
Eastern Meadowlark	Sturnella magna	SC
Barn Owl	Tyto alba	SC
Golden-winged Warbler	Vermivora chrysoptera	E

Mammals

Common Name	Scientific Name	MA Status	Fed Status	Notes
Sei Whale	Balaenoptera borealis	E	E
Blue Whale	Balaenoptera musculus	E	E
Fin Whale	Balaenoptera physalus	E	E
North Atlantic Right Whale	Eubalaena glacialis	E	E
Humpback Whale	Megaptera novaeangliae	E
Eastern Small-footed Bat	Myotis leibii	E
Little Brown Bat	Myotis lucifugus	E
Northern Long-eared Bat	Myotis septentrionalis	E	T
Indiana Bat	Myotis sodalis	E	E
Tricolored Bat	Perimyotis subflavus	E
Sperm Whale	Physeter macrocephalus	E	E
Rock Shrew	Sorex dispar	SC
Water Shrew	Sorex palustris	SC
Southern Bog Lemming	Synaptomys cooperi	SC

 

Sponges

Common Name	Scientific Name	MA Status	Fed Status	Notes
Smooth Branched Sponge	Spongilla aspinosa	SC

Flatworms

Common Name	Scientific Name	MA Status	Fed Status	Notes
Sunderland Spring Planarian	Seidlia  remota	SC

Segmented Worms

Common Name	Scientific Name	MA Status	Fed Status	Notes
New England Medicinal Leech	Macrobdella sestertia	SC

Snails

Common Name	Scientific Name	MA Status	Fed Status	Notes
New England Siltsnail	Floridobia winkleyi	SC
Henscomb Hydrobe	Littoridinops tenuipes	SC
Boreal Marstonia	Marstonia lustrica	E
Slender Walker	Pomatiopsis lapidaria	E
Mossy Valvata	Valvata sincera	E

 

Mussels

Common Name	Scientific Name	MA Status	Fed Status	Notes
Dwarf Wedgemussel	Alasmidonta heterodon	E	E
Brook Floater	Alasmidonta varicosa	E
Yellow Lampmussel	Lampsilis cariosa	E
Tidewater Mucket	Leptodea ochracea	SC
Eastern Pondmussel	Ligumia nasuta	SC
Creeper	Strophitus undulatus	SC

Crustaceans

Common Name	Scientific Name	MA Status	Fed Status	Notes
Intricate Fairy Shrimp	Eubranchipus intricatus	SC
Agassiz's Clam Shrimp	Eulimnadia agassizii	E
Northern Spring Amphipod	Gammarus pseudolimnaeus	SC
American Clam Shrimp	Limnadia lenticularis	SC
Taconic Cave Amphipod	Stygobromus borealis	E
Piedmont Groundwater Amphipod	Stygobromus tenuis	SC
Coastal Swamp Amphipod	Synurella chamberlaini	SC

Dragonflies

Common Name	Scientific Name	MA Status	Fed Status	Notes
Subarctic Darner	Aeshna subarctica	E
Ocellated Darner	Boyeria grafiana	SC
Midland Clubtail	Gomphurus fraternus	E
Skillet Clubtail	Gomphurus ventricosus	T
Spine-Crowned Clubtail	Hylogomphus abbreviatus	SC
Brook Snaketail	Ophiogomphus aspersus	SC
Riffle Snaketail	Ophiogomphus carolus	T
Harpoon Clubtail	Phanogomphus descriptus	E
Rapids Clubtail	Phanogomphus quadricolor	E
Ski-tipped Emerald Dragonfly	Somatochlora elongata	SC
Forcipate Emerald	Somatochlora forcipata	E
Coppery Emerald	Somatochlora georgiana	E
Incurvate Emerald	Somatochlora incurvata	E
Kennedy's Emerald	Somatochlora kennedyi	E
Mocha Emerald	Somatochlora linearis	SC
Riverine Clubtail	Stylurus amnicola	E
Ebony Boghaunter	Williamsonia fletcheri	E
Ringed Boghaunter	Williamsonia lintneri	T

 

Damselflies

Common Name	Scientific Name	MA Status	Fed Status	Notes
Tule Bluet	Enallagma carunculatum	SC
Attenuated Bluet	Enallagma daeckii	T
Scarlet Bluet	Enallagma pictum	T
Pine Barrens Bluet	Enallagma recurvatum	T

Beetles

Common Name	Scientific Name	MA Status	Fed Status	Notes
Northeastern Beach Tiger Beetle	Cicindela dorsalis	E	T
Twelve-spotted Tiger Beetle	Cicindela duodecimguttata	SC
Claybank Tiger Beetle	Cicindela limbalis	T
Cobblestone Tiger Beetle	Cicindela marginipennis	E
Barrens Tiger Beetle	Cicindela patruela	E
Puritan Tiger Beetle	Cicindela puritana	E	T
Purple Tiger Beetle	Cicindela purpurea	SC
Hentz's Red-bellied Tiger Beetle	Cicindela rufiventris hentzii	T
American Burying Beetle	Nicrophorus americanus	E	E

 

Butterflies and Moths

Common Name	Scientific Name	MA Status	Fed Status	Notes
Coastal Heathland Cutworm	Abagrotis benjamini	SC
Barrens Dagger Moth	Acronicta albarufa	T
Drunk Apamea Moth	Apamea inebriata	SC
Phyllira Tiger Moth	Apantesis phyllira	E
New Jersey Tea Inchworm	Apodrepanulatrix liberaria	E
Hessel's Hairstreak	Callophrys hesseli	SC
Frosted Elfin	Callophrys irus	SC
Bog Elfin	Callophrys lanoraieensis	T
Herodias Underwing Moth	Catocala herodias	SC
Precious Underwing Moth	Catocala pretiosa	E
Waxed Sallow Moth	Chaetaglaea cerata	SC
Melsheimer's Sack-bearer	Cicinnus melsheimeri	T
Chain Dot Geometer	Cingilia catenaria	SC
Collared Cycnia	Cycnia collaris	T
The Pink-streak	Dargida rubripennis	T
Imperial Moth	Eacles imperialis	T
Early Hairstreak	Erora laeta	T
Persius Duskywing	Erynnis persius	E
Scrub Euchlaena	Euchlaena madusaria	SC
Dion Skipper	Euphyes dion	T
Slender Clearwing Sphinx Moth	Hemaris gracilis	SC
Buck Moth	Hemileuca maia	SC
Sandplain Heterocampa	Heterocampa varia	T
Buchholz's Gray	Hypomecis buchholzaria	E
Pale Green Pinion Moth	Lithophane viridipallens	SC
Twilight Moth	Lycia rachelae	E
Woolly Gray	Lycia ypsilon	T
Barrens Metarranthis	Metarranthis apiciaria	E
Heath Metarranthis	Metarranthis pilosaria	SC
Northern Brocade Moth	Neoligia semicana	SC
Pitcher-plant Borer	Papaipema appassionata	T
Ostrich Fern Borer	Papaipema sp. 2	SC		Undescribed species near P. pterisii.
Chain Fern Borer	Papaipema stenocelis	T
Water-willow Stem Borer	Papaipema sulphurata	T
Cordgrass Borer	Photedes inops	SC

Mustard White	Pieris oleracea	T
Pink Sallow Moth	Psectraglaea carnosa	SC
Southern Ptichodis	Ptichodis bistrigata	T
Orange Sallow Moth	Pyrrhia aurantiago	SC
Pine Barrens Speranza	Speranza exonerata	SC
Faded Gray Geometer	Stenoporpia polygrammaria	T
Dune Sympistis	Sympistis riparia	SC
Pine Barrens Zale	Zale lunifera	SC		True Z. lunifera, sensu Schmidt, B.C. 2010. Taxonomic reassessment of Zale lunifera (Hübner) (Erebidae, Erebinae). Zookeys 39: 99-106.
Pine Barrens Zanclognatha	Zanclognatha martha	SC

Bees

Common Name	Scientific Name	MA Status	Fed Status	Notes
Walsh's Anthophora	Anthophora walshii	E
American Bumble Bee	Bombus pensylvanicus	E
Yellow-banded Bumble Bee	Bombus terricola	T

Plants

Common Name	Scientific Name	MA Status	Fed Status	Notes
Black Cohosh	Actaea racemosa	E
Climbing Fumitory	Adlumia fungosa	SC
Sandplain Gerardia	Agalinis acuta	E	E
Purple Giant Hyssop	Agastache scrophulariifolia	E
Lesser Snakeroot	Ageratina aromatica	E
Small-flowered Agrimony	Agrimonia parviflora	E
Downy Agrimony	Agrimonia pubescens	T
Mountain Alder	Alnus viridis ssp. crispa	SC
Bartram's Shadbush	Amelanchier bartramiana	T
Round-leaved Shadbush	Amelanchier sanguinea	SC
Annual Peanutgrass	Amphicarpum amphicarpon	E
Putty-root	Aplectrum hyemale	E
Lyre-leaved Rock-cress	Arabidopsis lyrata	E
Eastern Dwarf Mistletoe	Arceuthobium pusillum	SC
Arethusa	Arethusa bulbosa	T
Green Dragon	Arisaema dracontium	T
Purple Needlegrass	Aristida purpurascens	T
Seabeach Needlegrass	Aristida tuberculosa	T
Purple Milkweed	Asclepias purpurascens	E
Whorled Milkweed	Asclepias verticillata	T
Mountain Spleenwort	Asplenium montanum	E
Wall-rue Spleenwort	Asplenium ruta-muraria	T
Swamp Birch	Betula pumila	E
Eaton's Beggar-ticks	Bidens eatonii	E
Estuary Beggar-ticks	Bidens hyperborea	E
Downy Wood-mint	Blephilia ciliata	E
Hairy Wood-mint	Blephilia hirsuta	E
Smooth Rock-cress	Boechera laevigata	SC
Green Rock-cress	Boechera missouriensis	T
Pickering's Reed Grass	Calamagrostis pickeringii	E
New England Northern Reed Grass	Calamagrostis stricta ssp. inexpansa	E
Upright Bindweed	Calystegia spithamaea	E
Fen Cuckoo-flower	Cardamine dentata	T
Purple Cress	Cardamine douglassii	E
Long's Bittercress	Cardamine longii	E
Foxtail Sedge	Carex alopecoidea	T
Back's Sedge	Carex backii	E
Bailey's Sedge	Carex baileyi	T
Bush's Sedge	Carex bushii	E
Chestnut-colored Sedge	Carex castanea	E
Creeping Sedge	Carex chordorrhiza	E
Davis' Sedge	Carex davisii	E
Handsome Sedge	Carex formosa	T
Glaucescent Sedge	Carex glaucodea	E
Slender Woodland Sedge	Carex gracilescens	E
Gray's Sedge	Carex grayi	T
Hitchcock's Sedge	Carex hitchcockiana	SC
Shore Sedge	Carex lenticularis	T
Livid Sedge	Carex livida	E
False Hop Sedge	Carex lupuliformis	E
Midland Sedge	Carex mesochorea	E
Michaux's Sedge	Carex michauxiana	E
Mitchell's Sedge	Carex mitchelliana	T
Rich Woods Sedge	Carex oligocarpa	T
Few-seeded Sedge	Carex oligosperma	E
Few-flowered Sedge	Carex pauciflora	E
Variable Sedge	Carex polymorpha	E
Schweinitz's Sedge	Carex schweinitzii	E
Squarrose Sedge	Carex squarrosa	T
Dioecious Sedge	Carex sterilis	T
Walter's Sedge	Carex striata	E
Fen Sedge	Carex tetanica	SC
Hairy-fruited Sedge	Carex trichocarpa	SC
Tuckerman's Sedge	Carex tuckermanii	E
Cat-Tail Sedge	Carex typhina	T
American Bittersweet	Celastrus scandens	T
Nodding Chickweed	Cerastium nutans	E
Devil's-bit	Chamaelirium luteum	E
Fogg's Goosefoot	Chenopodium foggii	E
Narrow-leaved Spring-beauty	Claytonia virginica	E
Purple Clematis	Clematis occidentalis	SC
Long-leaved Panic-grass	Coleataenia longifolia ssp. longifolia	T
Hemlock-parsley	Conioselinum chinense	SC
Autumn Coral-root	Corallorhiza odontorhiza	SC
Shore Pygmy-weed	Crassula aquatica	T
Bicknell's Hawthorn	Crataegus bicknellii	E
Appalachian Bristle-fern	Crepidomanes intricatum	E
Fragile Rock-brake	Cryptogramma stelleri	E
Northern Wild Comfrey	Cynoglossum virginianum var. boreale	E
Engelmann's Flatsedge	Cyperus engelmannii	T
Houghton's Flatsedge	Cyperus houghtonii	E
Ram's Head Lady's-slipper	Cypripedium arietinum	E
Yellow Lady's-slipper	Cypripedium parviflorum	E
Showy Lady's-slipper	Cypripedium reginae	E
Tussock Hairgrass	Deschampsia cespitosa ssp. glauca	E
Large-bracted Tick-trefoil	Desmodium cuspidatum	T
Mattamuskeet Rosette-grass	Dichanthelium mattamuskeetense	E
Commons' Rosette-grass	Dichanthelium commonsianum	SC
Rough Rosette-grass	Dichanthelium scabriusculum	T
Wright's Rosette-grass	Dichanthelium wrightianum	SC
Cornel-leaved Aster	Doellingeria infirma	E
American Waterwort	Elatine americana	E
Wright's Spike-sedge	Eleocharis diandra	E
Matted Spike-sedge	Eleocharis intermedia	T
Tiny-fruited Spike-sedge	Eleocharis microcarpa	E
Ovate Spike-sedge	Eleocharis ovata	E
Few-flowered Spike-sedge	Eleocharis quinqueflora	E
Three-angled Spike-sedge	Eleocharis tricostata	E
Hairy Wild Rye	Elymus villosus	E
Dwarf Scouring Rush	Equisetum scirpoides	SC
Frank's Lovegrass	Eragrostis frankii	SC
Parker's Pipewort	Eriocaulon parkeri	E
Slender Cottongrass	Eriophorum gracile	T
New England Boneset	Eupatorium novae-angliae	E
Northern Bedstraw	Galium boreale	E
Labrador Bedstraw	Galium labradoricum	T
Purple Cudweed	Gamochaeta purpurea	E
Andrews' Bottle Gentian	Gentiana andrewsii	E
Barren Strawberry	Geum fragarioides	SC
Dwarf Rattlesnake-plantain	Goodyera repens	E
Spurred Gentian	Halenia deflexa	E
Long-leaved Bluet	Houstonia longifolia	E
Appalachian Firmoss	Huperzia appressa	E
Mountain Firmoss	Huperzia selago	E
Golden Seal	Hydrastis canadensis	E
Saltpond Pennywort	Hydrocotyle verticillata	T
Broad Waterleaf	Hydrophyllum canadense	E
Creeping St. John's-wort	Hypericum adpressum	T
Giant St. John's-wort	Hypericum ascyron	E
St. Andrew's Cross	Hypericum stragulum	E
Big-leaved Holly	Ilex montana	E
Acadian Quillwort	Isoetes acadiensis	E
Lake Quillwort	Isoetes lacustris	E
Small Whorled Pogonia	Isotria medeoloides	E	T
Two-flowered Rush	Juncus biflorus	T
Weak Rush	Juncus debilis	E
Thread Rush	Juncus filiformis	E
Redroot	Lachnanthes caroliniana	SC
Beaded Pinweed	Lechea pulchella var. moniliformis	E
Saltpond Grass	Leptochloa fusca ssp. fascicularis	T
Sea Lyme-grass	Leymus mollis	E
New England Blazing Star	Liatris novae-angliae	SC
American Twinflower	Linnaea borealis	SC
Stiff Yellow Flax	Linum medium var. texanum	T
Lily-leaf Twayblade	Liparis liliifolia	T
Dwarf Bulrush	Lipocarpha micrantha	T
Great Blue Lobelia	Lobelia siphilitica	E
Hairy Honeysuckle	Lonicera hirsuta	E
Many-fruited Seedbox	Ludwigia polycarpa	E
Round-fruited Seedbox	Ludwigia sphaerocarpa	E
Black-fruited Woodrush	Luzula parviflora ssp. melanocarpa	E
Foxtail Clubmoss	Lycopodiella alopecuroides	E
Taperleaf Water-horehound	Lycopus rubellus	E
Climbing Fern	Lygodium palmatum	SC
Sweet Bay	Magnolia virginiana	E
Bayard's Adder's-mouth	Malaxis bayardii	E
White Adder's-mouth	Malaxis monophyllos ssp. brachypoda	E
Green Adder's-mouth	Malaxis unifolia	T
Oysterleaf	Mertensia maritima	E
Woodland Millet	Milium effusum	T
Winged Monkey-flower	Mimulus alatus	E
Muskflower	Mimulus moschatus	T
Michaux's Sandwort	Minuartia michauxii	T
Large-leaved Sandwort	Moehringia macrophylla	E
One-flowered Pyrola	Moneses uniflora	SC
Red Mulberry	Morus rubra	E
Slender Water-milfoil	Myriophyllum alterniflorum	E
Farwell's Water-milfoil	Myriophyllum farwellii	E
Pinnate Water-milfoil	Myriophyllum pinnatum	SC
Whorled Water-milfoil	Myriophyllum verticillatum	E
Lion's Foot	Nabalus serpentarius	E
Southern Twayblade	Neottia bifolia	T
Heartleaf Twayblade	Neottia cordata	E
Tiny Cow-lily	Nuphar microphylla	E
Upland White Goldenrod	Oligoneuron album	E
Adder's Tongue Fern	Ophioglossum pusillum	T
Eastern Prickly Pear	Opuntia humifusa	E
Golden Club	Orontium aquaticum	E
Violet Wood-sorrel	Oxalis violacea	E
American Ginseng	Panax quinquefolius	SC
Gattinger's Panic-grass	Panicum philadelphicum ssp. gattingeri	SC
Philadelphia Panic-grass	Panicum philadelphicum ssp. philadelphicum	SC
Silverling	Paronychia argyrocoma	E
Swamp Lousewort	Pedicularis lanceolata	E
Hairy Beard-tongue	Penstemon hirsutus	E
Pondshore Smartweed	Persicaria puritanorum	SC
Swamp Smartweed	Persicaria setacea	T
Sweet Coltsfoot	Petasites frigidus var. palmatus	E
Crested Fringed Orchid	Platanthera cristata	E
Leafy White Orchid	Platanthera dilatata	T
Pale Green Orchid	Platanthera flava var. herbiola	T
Drooping Speargrass	Poa saltuensis ssp. languida	E
Sea-beach Knotweed	Polygonum glaucum	SC
Braun's Holly-fern	Polystichum braunii	E
Swamp Cottonwood	Populus heterophylla	E
Tuckerman's Pondweed	Potamogeton confervoides	T
Fries' Pondweed	Potamogeton friesii	E
Hill's Pondweed	Potamogeton hillii	SC
Ogden's Pondweed	Potamogeton ogdenii	E
Straight-leaved Pondweed	Potamogeton strictifolius	E
Vasey's Pondweed	Potamogeton vaseyi	E
Sandbar Cherry	Prunus pumila var. depressa	T
Pink Pyrola	Pyrola asarifolia	E
Bur Oak	Quercus macrocarpa	SC
Yellow Oak	Quercus muehlenbergii	T
Small-flowered Buttercup	Ranunculus micranthus	E
Bristly Buttercup	Ranunculus pensylvanicus	SC
Maryland Meadow-beauty	Rhexia mariana	E
Great Laurel	Rhododendron maximum	T
Capillary Beaksedge	Rhynchospora capillacea	E
Inundated Beaksedge	Rhynchospora inundata	T
Short-beaked Beaksedge	Rhynchospora nitens	T
Long-beaked Beaksedge	Rhynchospora scirpoides	SC
Torrey's Beaksedge	Rhynchospora torreyana	E
Bristly Black Currant	Ribes lacustre	SC
Northern Prickly Rose	Rosa acicularis ssp. sayi	E
Toothcup	Rotala ramosior	E
Seabeach Dock	Rumex pallidus	T
Swamp Dock	Rumex verticillatus	T
Slender Marsh Pink	Sabatia campanulata	E
Plymouth Gentian	Sabatia kennedyana	SC
Sea Pink	Sabatia stellaris	E
Wapato	Sagittaria cuneata	T
Estuary Arrowhead	Sagittaria montevidensis ssp. spongiosa	E
Terete Arrowhead	Sagittaria teres	SC
Sandbar Willow	Salix exigua ssp. interior	T
Canadian Sanicle	Sanicula canadensis	T
Clustered Sanicle	Sanicula odorata	T
Pod-grass	Scheuchzeria palustris	E
American Chaffseed	Schwalbea americana	E	E
Northeastern Bulrush	Scirpus ancistrochaetus	E	E
Long's Bulrush	Scirpus longii	E
Papillose Nut-sedge	Scleria pauciflora	E
Tall Nut-sedge	Scleria triglomerata	E
One-flower Sclerolepis	Sclerolepis uniflora	E
Wild Senna	Senna hebecarpa	E
Bristly Foxtail	Setaria parviflora	SC
Sandplain Blue-eyed Grass	Sisyrinchium fuscatum	SC
Slender Blue-Eyed Grass	Sisyrinchium mucronatum	E
Large-leaved Goldenrod	Solidago macrophylla	SC
Rand's Goldenrod	Solidago randii	E
Northern Mountain-ash	Sorbus decora	E
Small Bur-reed	Sparganium natans	E
Salt Reedgrass	Spartina cynosuroides	T
Shining Wedgegrass	Sphenopholis nitida	T
Swamp Oats	Sphenopholis pensylvanica	T
Hooded Ladies'-tresses	Spiranthes romanzoffiana	E
Grass-leaved Ladies'-tresses	Spiranthes vernalis	T
Small Dropseed	Sporobolus neglectus	E
American Sea-blite	Suaeda calceoliformis	SC
Snowberry	Symphoricarpos albus var. albus	E
Eastern Silvery Aster	Symphyotrichum concolor	E
Tradescant's Aster	Symphyotrichum tradescantii	T
Arborvitae	Thuja occidentalis	E
Cranefly Orchid	Tipularia discolor	E
False Pennyroyal	Trichostema brachiatum	E
Broad Tinker's-weed	Triosteum perfoliatum	E
Nodding Pogonia	Triphora trianthophoros	E
Northern Gama-grass	Tripsacum dactyloides	E
Narrow False Oats	Trisetum spicatum	E
Resupinate Bladderwort	Utricularia resupinata	T
Slender Bladderwort	Utricularia subulata	SC
Mountain Cranberry	Vaccinium vitis-idaea	E
Narrow-leaved Vervain	Verbena simplex	E
Sessile Water-speedwell	Veronica catenata	E
Culver's-root	Veronicastrum virginicum	T
Downy Arrow-wood	Viburnum rafinesqueanum	E
Sand Violet	Viola adunca	SC
Britton's Violet	Viola brittoniana	T

 

List Categories

Endangered - any species of plant or animal in danger of extinction throughout all or a significant portion of its range and species of plants or animals in danger of extirpation as documented by biological research and inventory

Threatened - any species of plant or animal likely to become an endangered species within the foreseeable future throughout all or a significant portion of its range and any species declining or rare as determined by biological research and inventory and likely to become endangered in the foreseeable future

Species of Special Concern - any species of plant or animal which has been documented by biological research and inventory to have suffered a decline that could threaten the species if allowed to continue unchecked or that occurs in such small numbers or with such a restricted distribution or specialized habitat requirements that it could easily become threatened within Massachusetts

Last updated:	January 10, 2020