321 CMR 10.90
List of Endangered, Threatened, and Special Concern Species
(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 in 321 CMR 10.90. 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 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 and invertebrates, the list is further divided into categories which are generally recognized, such as fish, mammals, and dragonflies. All such information has no regulatory effect and is provided only for the purpose of organizing the list. The following outline shows the taxonomic categories used and their order.
Outline of State List:
ANIMALS
Vertebrates
Fish
Amphibians
Reptiles
Birds
Mammals
Invertebrates
Sponges
Flatworms
Segmented Worms
Snails
Mussels
Crustaceans Dragonflies Damselflies
Beetles
Butterflies and Moths
Bees
PLANTS
(4) The List. The Massachusetts List of Endangered, Threatened, and Special Concern species follows:
Massachusetts List of Endangered, Threatened, and Special Concern Species
ANIMALS
Taxonomic Group Status
Common Name Scientific Name MA US Notes
VERTEBRATES:
Fish
Common Name
Scientific Name
MA
US
Notes
Shortnose Sturgeon
Acipenser brevirostrum
E
E
Atlantic Sturgeon
Acipenser oxyrinchus
E
Longnose Sucker
Catostomus catostomus
SC
Northern Redbelly Dace
Chrosomus eos
E
Lake Chub
Couesius plumbeus
E
Threespine Stickleback
Gasterosteus aculeatus
T
1
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
US
Notes
Jefferson Salamander (complex)
Ambystoma jeffersonianum
SC
2
Blue-spotted Salamander (complex)
Ambystoma laterale
pop. 1
SC
3
Blue-spotted Salamander
Ambystoma laterale
pop. 2
T
4
Marbled Salamander
Ambystoma opacum
T
Eastern Spadefoot
Scaphiopus holbrookii
T
Reptiles
Common Name
Scientific Name
MA
US
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
Kemps’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
5
Eastern Box Turtle
Terrapene carolina
SC
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Trimorphic freshwater population only.
Complex consisting of the genetically pure lineage and its associated unisexual forms (statewide).
“Population 1”; complex consisting of the genetically pure lineage and its associated unisexual forms (jurisdictions outside Bristol and Plymouth Counties).
“Population 2”; consists of the genetically pure lineage (Bristol and Plymouth Counties only).
This species is listed by the U.S. Fish & Wildlife Service as
P.r. bangsi
(Plymouth Redbelly Turtle) in 50 CFR 17.11.
Birds
Common Name
Scientific Name
MA
US
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
US
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 Red Bat
Lasiurus borealis
SC
Hoary Bat
Lasiurus cinereus
SC
Silver-haired Bat
Lasionycteris noctivagans
SC
Eastern Small-footed Bat
Myotis leibii
E
Little Brown Bat
Myotis lucifugus
E
Northern Long-eared Bat
Myotis septentrionalis
E
E
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
INVERTEBRATES
Sponges
Common Name
Scientific Name
MA
US
Notes
Smooth Branched Sponge
Spongilla aspinosa
SC
Flatworms
Common Name
Scientific Name
MA
US
Notes
Sunderland Spring Planarian
Seidlia remota
SC
Segmented Worms
Common Name
Scientific Name
MA
US
Notes
New England Medicinal Leech
Macrobdella sestertia
SC
Snails
Common Name
Scientific Name
MA
US
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
US
Notes
Dwarf Wedgemussel
Alasmidonta heterodon
E
E
Brook Floater
Alasmidonta varicosa
E
Tidewater Mucket
Atlanticoncha ochracea
SC
Yellow Lampmussel
Lampsilis cariosa
E
Eastern Pondmussel
Sagittunio nasutus
SC
Creeper
Strophitus undulatus
SC
Crustaceans
Common Name
Scientific Name
MA
US
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
Coastal Swamp Amphipod
Sicifera chamberlaini
SC
Taconic Cave Amphipod
Stygobromus borealis
E
Piedmont Groundwater Amphipod
Stygobromus tenuis
SC
Dragonflies
Common Name
Scientific Name
MA
US
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
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
US
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
US
Notes
Twelve-spotted Tiger Beetle
Cicindela duodecimguttata
SC
Claybank Tiger Beetle
Cicindela limbalis
T
Barrens Tiger Beetle
Cicindela patruela
E
Purple Tiger Beetle
Cicindela purpurea
SC
Cobblestone Tiger Beetle
Cicindelidia marginipennis
E
Hentz's Red-bellied Tiger Beetle
Cicindelidia
rufiventris hentzii
T
Puritan Tiger Beetle
Ellipsoptera puritana
E
T
Northeastern Beach Tiger Beetle
Habroscelimorpha dorsalis
E
T
American Burying Beetle
Nicrophorus americanus
E
T
Butterflies and Moths
Common Name
Scientific Name
MA
US
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
Pine Barrens Macaria
Macaria exonerata
SC
Barrens Metarranthis
Metarranthis apiciaria
E
Heath Metarranthis
Metarranthis pilosaria
SC
Northern Brocade Moth
Neoligia semicana
SC
Pitcher Plant Borer
Papaipema appassionata
T
Golden Borer
Papaipema cerina
E
Ostrich Fern Borer
Papaipema sp. 2
SC
1
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
Acadian Hairstreak
Satyrium acadica
T
Faded Gray Geometer
Stenoporpia polygrammaria
T
Dune Sympistis
Sympistis riparia
SC
Pine Barrens Zale
Zale lunifera
SC
2
Pine Barrens Zanclognatha
Zanclognatha martha
SC
Bees
Common Name
Scientific Name
MA
US
Notes
Parnassia Miner
Andrena parnassiae
T
Walsh’s Anthophora
Anthophora walshii
E
American Bumble Bee
Bombus pensylvanicus
E
Yellow-banded Bumble Bee
Bombus terricola
T
Macropis Cuckoo Bee
Epeoloides pilosulus
T
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1 Undescribed species near P. pterisii
2 True Z. lunifera, sensu Schmidt (2010). Taxonomic Reassessment of Zale lunifera (Hubner) (Erebidae, Erebinae). Zookey 39:99-106
E = Endangered, T = Threatened, SC = Special Concern
Massachusetts List of Endangered, Threatened, and Special Concern Species
Plants
Common Name
Scientific Name
MA
US
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
alnobetula
ssp.
crispa
SC
Bartram's Shadbush
Amelanchier bartramiana
T
Round-leaved Shadbush
Amelanchier sanguinea
SC
Annual Peanutgrass
Amphicarpum amphicarpon
E
Northern Wild Comfrey
Andersonglossum
boreale
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
Borodinia
laevigata
SC
Green Rock-cress
Borodinia
missouriensis
T
Pickering’s Reedgrass
Calamagrostis pickeringii
E
New England Northern Reed Grass
Calamagrostis
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
Bog Sedge
Carex exilis
T
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
Willdenow's Sedge
Carex willdenowii
E
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
Split-leaved Hawthorn
Crateagus schizophylla
E
Appalachian Bristle-fern
Crepidomanes intricatum
SC
Fragile Rock-brake
Cryptogramma stelleri
E
Engelmann's Flatsedge
Cyperus engelmannii
T
Houghton's Flatsedge
Cyperus houghtonii
E
Pine Barrens Flatsedge
Cyperus retrorsus
SC
Dwarf Bulrush
Cyperus subsquarrosus
T
Ram's Head Lady's-slipper
Cypripedium arietinum
E
Yellow Lady's-slipper
Cypripedium parviflorum
E
Showy Lady's-slipper
Cypripedium reginae
E
Frog Orchid
Dactylorhiza viridis
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
Velvet Rosette-grass
Dichanthelium scoparium
E
Wright's Rosette-grass
Dichanthelium wrightianum
SC
Saltpond Grass
Diplachne
fascicularis
T
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
Muskflower
Erythranthe moschata
T
New England Boneset
Eupatorium novae-angliae
E
Showy Orchid
Galearis spectabilis
T
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
Narrow False Oats
Koeleria spicata
E
Redroot
Lachnanthes caroliniana
SC
Beaded Pinweed
Lechea pulchella
var.
moniliformis
E
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
Loesel's Wide-lipped Orchid
Liparis loeselii
T
Great Blue Lobelia
Lobelia siphilitica
E
Hairy Honeysuckle
Lonicera hirsuta
E
Many-fruited Seedbox
Ludwigia polycarpa
E
Round-fruited Seedbox
Ludwigia sphaerocarpa
E
Wild Lupine
Lupinus perennis
SC
Black-fruited Woodrush
Luzula parviflora
ssp.
melanocarpa
E
Foxtail Clubmoss
Lycopodiella alopecuroides
E
Taperleaf Water-horehound
Lycopus rubellus
E
Climbing Fern
Lygodium palmatum
SC
Winged Loosestrife
Lythrum alatum
E
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
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 cespitosa
E
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
Hooker’s Orchid
Platanthera hookeri
E
Large-leaved Orchid
Platanthera macrophylla
T
Round-leaved Orchid
Platanthera orbiculata
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
Straight-leaved Pondweed
Potamogeton strictifolius
E
Vasey’s Pondweed
Potamogeton vaseyi
E
Sandbar Cherry
Prunus pumila
var.
depressa
T
Slender Clubmoss
Pseudolycopodiella caroliniana
E
Pink Shinleaf
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
Michaux's Sandwort
Sabulina michauxii
T
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
T
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
Shining Wedgegrass
Sphenopholis nitida
T
Swamp Oats
Sphenopholis pensylvanica
T
Hooded Ladies'-tresses
Spiranthes romanzoffiana
E
Grass-leaved Ladies'-tresses
Spiranthes vernalis
T
Salt Reedgrass
Sporobolus cynosuroides
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
Resupinate Bladderwort
Utricularia resupinata
T
Slender Bladderwort
Utricularia subulata
T
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