Native Plants Reported from Plymouth County, MA
Includes 1,025 species, subspecies, natural varieties, and natural hybrids
Source: Massachusetts County Checklist (2011, First Revision)

A reminder: No one should attempt propagation or installation of state-protected rare plants listed here as Endangered, Threatened, or of Special Concern (as well as Historic plants). Manipulating Watch-Listed plants is not prohibited; however, a good practice is to voluntarily report to NHESP any such manipulations, especially because the status of Watch-Listed plants may be eventually elevated to state-protected.
[Alternative View: Alphabetic List by Species—Including Some Species Present in Adjacent Counties]

Lycophytes — Clubmosses, Quillworts, Spikemosses

HuperziaceaeFirmoss Family
Huperzia
lucidula — shining clubmoss (Lycopodium lucidulum)
IsoetaceaeQuillwort Family
Isoetes
acadiensis — Acadian quillwort — Endangered
echinospora — spiny-spored quillwort
engelmannii — Engelmann's quillwort
tuckermanii — Tuckerman's quillwort
LycopodiaceaeClubmoss Family
Dendrolycopodium
obscurum — princess-pine or tree clubmoss (Lycopodium obscurum)
Diphasiastrum
digitatum — southern ground-cedar (Lycopodium complanatum var. flabelliforme)
tristachyum — slender ground-cedar, wiry ground-cedar (Lycopodium tristachyum)
Lycopodiella
appressa — southern bog clubmoss (Lycopodium appressum, L. inundatum var. bigelovii)
inundata — northern bog clubmoss (Lycopodium inundatum)
×copelandii — Copeland's clubmoss or bog clubmoss (Lycopodiella alopecuroides × L. appressa)
Lycopodium
clavatum — running clubmoss, common clubmoss
Spinulum
annotinum — stiff clubmoss (Lycopodium annotinum)
SelaginellaceaeSpikemoss Family
Selaginella
apoda — meadow spikemoss
rupestris — rock spikemoss — Watch-Listed

Monilophytes — Ferns and Horsetails

AspleniaceaeSpleenwort Family
Asplenium
platyneuron — ebony spleenwort
BlechnaceaeChainfern Family
Woodwardia
areolata — netted chain fern
virginica — Virginia chain fern
DennstaedtiaceaeHay-Scented Fern Family
Dennstaedtia
punctilobula — hayscented fern
Pteridium
aquilinum var. latiusculum — bracken fern
aquilinum var. pseudocaudatum — pine barrens bracken fern — Watch-Listed
DryopteridaceaeWoodfern Family
Dryopteris
carthusiana — spinulose wood fern (Dryopteris spinulosa)
cristata — crested wood fern
intermedia — intermediate wood fern (Dryopteris spinulosa var. intermedia)
marginalis — marginal wood fern
×boottii — Boott's wood fern (Dryopteris cristata × D. intermedia)
×slossoniae — Slosson's wood fern (Dryopteris cristata × D. marginalis)
Polystichum
acrostichoides — Christmas fern
EquisetaceaeHorsetail Family
Equisetum
arvense — field horsetail, common horsetail
fluviatile — river horsetail
hyemale — scouring rush
sylvaticum — woodland horsetail
OnocleaceaeSensitive Fern Family
Onoclea
sensibilis — sensitive fern
OphioglossaceaeAdder's Tongue Fern Family
Botrychium
dissectum — dissected grapefern
matricariifolium — daisy-leaf moonwort — Watch-Listed
oneidense — blunt-lobed grapefern — Watch-Listed
tenebrosum — swamp moonwort (Botrychium simplex var. tenebrosum) Watch-Listed
virginianum — rattlesnake fern
Ophioglossum
pusillum — adder's tongue fern (Ophioglossum vulgatum var. pseudopodum) Threatened
OsmundaceaeFlowering Fern Family
Osmunda
claytoniana — interrupted fern
regalis — royal fern
Osmundastrum
cinnamomeum — cinnamon fern (Osmunda cinnamomea)
PolypodiaceaePolypody Family
Polypodium
virginianum — rockcap fern or common polypody
×incognitum — hybrid polypody (Polypodium appalachianum × P. virginianum)
PteridaceaeMaidenhair Fern Family
Adiantum
pedatum — northern maidenhair fern
SchizaeaceaeCurly-Grass Fern Family
Lygodium
palmatum — climbing fern — Special Concern
ThelypteridaceaeMarsh Fern Family
Parathelypteris
noveboracensis — New York fern (Thelypteris noveboracensis)
simulata — Massachusetts fern (Thelypteris simulata)
Phegopteris
connectilis — narrow beech fern (Thelypteris phegopteris)
hexagonoptera — broad beech fern (Thelypteris hexagonoptera)
Thelypteris
palustris — marsh fern
WoodsiaceaeWoodsia Fern Family
Athyrium
angustum — northern lady fern (Athyrium filix-femina var. angustum)
Cystopteris
tenuis — MacKay's fragile fern or brittle fern (Cystopteris fragilis var. mackayi)
Deparia
acrostichoides — silvery spleenwort (Athyrium thelypteroides)
Woodsia
ilvensis — rusty woodsia

Gymnosperms — Conifers

CupressaceaeJuniper Family
Chamaecyparis
thyoides — Atlantic white cedar
Juniperus
communis var. depressa — common juniper, pasture juniper
virginiana — eastern red cedar
PinaceaePine Family
Larix
laricina — tamarack, American larch
Picea
mariana — black spruce
Pinus
rigida — pitch pine
strobus — white pine
Tsuga
canadensis — eastern hemlock
TaxaceaeYew Family
Taxus
canadensis — Canada yew

Magnoliid Complex — Primitive Dicots

CeratophyllaceaeCoontail Family
Ceratophyllum
demersum — hornwort, coontail
echinatum — forked coontail
LauraceaeLaurel Family
Lindera
benzoin — spicebush
Sassafras
albidum — sassafras
NymphaeaceaeWaterlily Family
Brasenia
schreberi — watershield
Nuphar
variegata — yellow waterlily, spatterdock
Nymphaea
odorata — American white waterlily, fragrant waterlily

Monocots

AlismataceaeWater-Plantain Family
Sagittaria
engelmanniana — acid-water arrowhead
filiformis — riffle arrowhead (Sagittaria stagnorum, S. subulata var. gracillima)
graminea var. graminea — grass leaf arrowhead
latifolia — common arrowhead
subulata — river arrowhead — Historic
teres — pondshore or terete arrowhead — Special Concern
AlliaceaeLeek Family
Allium
canadense — wild garlic
AraceaeArum Family
Arisaema
stewardsonii — swamp Jack-in-the-pulpit (Arisaema triphyllum ssp. stewardsonii)
triphyllum — woodland Jack-in-the-pulpit (Arisaema atrorubens, A. triphyllum ssp. triphyllum)
Calla
palustris — water-arum
Lemna
minor — common duckweed
perpusilla — tiny duckweed — Historic
valdiviana — pale duckweed — Historic
Orontium
aquaticum — golden club — Endangered
Peltandra
virginica — arrow-arum
Spirodela
polyrrhiza — greater duckweed
Symplocarpus
foetidus — skunk cabbage
Wolffiella
gladiata — sickle watermeal (Wolffiella floridana) Watch-Listed
ColchiaceaeAutumn Crocus Family
Uvularia
sessilifolia — little merrybells
CyperaceaeSedge Family
Bolboschoenus
maritimus — seaside bulrush (Scirpus maritimus, S. paludosus var. atlanticus)
maritimus × B. robustus — seaside bulrush x saltmarsh bulrush
novae-angliae — long-spiked bulrush (Scirpus novae-angliae, S. cylindricus) Watch-Listed
robustus — saltmarsh bulrush (Scirpus robustus)
Bulbostylis
capillaris — tufted hairsedge
Carex
abscondita — concealed sedge — Watch-Listed
alata — winged sedge
albicans var. emmonsii — Emmons' sedge (Carex emmonsii)
annectens — yellow-fruited fox sedge
appalachica — Appalachian sedge, spreading star sedge
argyrantha — silvery sedge
atlantica ssp. atlantica — Atlantic prickly sedge
atlantica ssp. capillacea — threadstem sedge (Carex howei)
billingsii — three-seeded bog sedge (Carex trisperma var. billingsii)
blanda — woodland sedge
bromoides — brome-like sedge
brunnescens — brownish sedge
bullata — button sedge
buxbaumii — Buxbaum's sedge — Watch-Listed
canescens ssp. disjuncta — silvery bog sedge
cephalophora — oval-headed sedge
communis — common sedge
comosa — bristly sedge
conoidea — field sedge
crinita — fringed sedge
cumulata — crowded sedge
debilis var. rudgei — northern stalked sedge
digitalis — slender wood sedge
echinata — prickly sedge (Carex angustior, C. cephalantha)
folliculata — long-culmed sedge
gracillima — slender drooping sedge
gynandra — northern awned sedge (Carex crinita var. gynandra)
haydenii — Hayden's sedge — Watch-Listed
hormathodes — saltmarsh straw sedge
intumescens — bladder or swamp sedge
lacustris — marsh sedge, lakeside sedge
laevivaginata — smoothed-sheath sedge
lasiocarpa ssp. americana — slender woolly-fruited sedge (Carex lanuginosa)
laxiculmis — spreading woodland sedge
laxiflora — loose-flowered woodland sedge
leptalea — delicate sedge
longii — Long's sedge
lucorum — long-beaked Pennsylvania sedge (Carex pensylvanica var. distans)
lupulina — hop sedge
lurida — sallow sedge
muhlenbergii — Muhlenberg's sedge
muhlenbergii var. enervis — smooth Muhlenberg's sedge
nigra — black sedge
paleacea — saltmarsh sedge
pallescens — pale sedge
pellita — broad-leaved woolly-fruited sedge (Carex lanuginosa)
pensylvanica — Pennsylvania sedge
polymorpha — variable sedge — Endangered
retroflexa — reflexed sedge
rosea — big star sedge (Carex convoluta)
scabrata — eastern rough sedge
scoparia — broom sedge
seorsa — swamp prickly sedge
silicea — seabeach sedge
stipata — awl-fruited sedge
straminea — straw sedge
striata — Walter's sedge (Carex walteriana) Endangered
stricta — tussock sedge
swanii — Swan's sedge
tenera — slender straw sedge
tonsa — stiff-leaved sand sedge, shaved sedge (Carex rugosperma var. tonsa)
tonsa var. rugosperma — sand sedge (Carex rugosperma var. rugosperma, C. umbellata sensu Fern.)
tribuloides — blunt broom sedge
utriculata — swollen-beak sedge (Carex rostrata var. utriculata)
vesicaria — inflated sedge
vestita — velvet-fruited sedge
virescens — ribbed sedge
viridula — little green sedge — Watch-Listed
vulpinoidea — fox sedge (Carex setacea)
Cladium
mariscoides — twig-sedge
Cyperus
bipartitus — shining flatsedge (Cyperus rivularis)
dentatus — pondshore flatsedge
diandrus — red-edged flatsedge
erythrorhizos — redroot flatsedge
esculentus — yellow flatsedge
filicinus — fern flatsedge (Cyperus polystachyos var. filicinus)
grayi — Gray's flatsedge
lupulinus ssp. lupulinus — slender sand flatsedge (Cyperus filiculmis var. filiculmis)
lupulinus ssp. macilentus — sand flatsedge (Cyperus filiculmis var. macilentus)
odoratus — saltmarsh flatsedge (Cyperus ferruginescens) Watch-Listed
polystachyos — Texas flatsedge (Cyperus polystachyos var. texensis) Watch-Listed
strigosus — straw-colored flatsedge
Dulichium
arundinaceum — three-way sedge
Eleocharis
acicularis — needle spike-rush
elliptica — orange-fruited spike-rush
flavescens var. olivacea — olive spike-rush (Eleocharis olivacea)
melanocarpa — black-fruited spike-rush — Watch-Listed
obtusa — soft-stemmed spike-rush
palustris — marsh spike-rush (Eleocharis smallii)
parvula — dwarf spike-rush
robbinsii — Robbins' spike-rush
rostellata — saltmarsh spikerush, beaked spikerush — Watch-Listed
tenuis — slender spike-rush
tenuis var. pseudoptera — slender spike-rush (Eleocharis capitata var. pseudoptera, E. elliptica var. pseudoptera) Historic
tuberculosa — tubercled spike-rush
uniglumis — saline spike-rush, one-glumed spike-rush (Eleocharis halophila)
Eriophorum
tenellum — rough cotton-grass
vaginatum — hare's tail cotton-grass (Eriophorum vaginatum ssp. spissum, E. spissum)
virginicum — Virginia cotton-grass
Fimbristylis
autumnalis — northern fimbry
Fuirena
pumila — annual umbrella-sedge — Watch-Listed
Lipocarpha
micrantha — dwarf bulrush (Hemicarpha micrantha) Threatened
Rhynchospora
alba — white beak-rush
capitellata — brown beak-rush
fusca — sooty beak-rush
inundata — narrow-fruited beaksedge, inundated horned sedge — Threatened
macrostachya — big-headed horned sedge
nitens — short-beaked baldsedge — Threatened
scirpoides — long-beaked baldsedge — Special Concern
torreyana — Torrey's beaksedge — Endangered
Schoenoplectus
americanus — saltmarsh threesquare (Scirpus americanus, S. olneyi)
pungens — common threesquare (Scirpus pungens, S. americanus auct. non Pers.)
purshianus — Pursh's bulrush (Scirpus purshianus)
smithii — Smith's clubsedge (Scirpus smithii)
subterminalis — water bulrush, floating bulrush (Scirpus subterminalis)
tabernaemontani — soft-stemmed bulrush (Scirpus tabernaemontani, S. validus)
torreyi — Torrey's bulrush (Scirpus torreyi) Watch-Listed
Scirpus
atrocinctus — black-girdled woolsedge, dusky woolgrass
cyperinus — common bulrush
georgianus — black bulrush (Scirpus atrovirens var. georgianus)
hattorianus — meadow bulrush
longii — Long's bulrush — Endangered (Status Changed after 2011)
microcarpus — red-stemmed bulrush (Scirpus rubrotinctus)
Scleria
reticularis — pondshore nutsedge — Watch-Listed
DioscoreaceaeYam Family
Dioscorea
villosa — wild yam — Watch-Listed
EriocaulaceaePipewort Family
Eriocaulon
aquaticum — pipewort, white buttons (Eriocaulon septangulare)
parkeri — Parker's pipewort — Endangered
HaemodoraceaeBloodwort Family
Lachnanthes
caroliana — redroot — Special Concern
HydrocharitaceaeTapegrass Family
Elodea
nuttallii — Nuttall's waterweed
Najas
flexilis — common naiad
gracillima — slender naiad
Vallisneria
americana — tapegrass, water celery
HypoxidaceaeStargrass Family
Hypoxis
hirsuta — yellow stargrass
IridaceaeIris family
Iris
prismatica — slender blueflag — Watch-Listed (Status Changed after 2011)
versicolor — northern blueflag
Sisyrinchium
angustifolium — stout blue-eyed-grass
atlanticum — eastern blue-eyed-grass
montanum — meadow blue-eyed grass
JuncaceaeRush Family
Juncus
acuminatus — sharp-fruited rush
anthelatus — Wiegand's rush (Juncus tenuis var. anthelatus)
arcticus — brackish rush (Juncus balticus var. littoralis)
articulatus — jointed rush
bufonius — toad rush
canadensis — marsh or Canada rush
dichotomus — forked rush (Juncus platyphyllus)
effusus — common rush (Juncus effusus var. solutus)
gerardii — saltmarsh rush
greenei — Greene's rush
marginatus — grassleaf rush
militaris — bayonet rush
pelocarpus — pondshore rush
pylaei — Pylaie's soft rush (Juncus effusus var. pylaei, J. effusus var. costulatus)
secundus — secund rush
tenuis — path rush, yard rush
Luzula
multiflora — common woodrush
JuncaginaceaeArrowgrass Family
Triglochin
maritima — saltmarsh arrow-grass
LiliaceaeLily Family
Clintonia
borealis — bluebead lily
Erythronium
americanum — trout-lily
Lilium
canadense — Canada lily, wild yellow lily
philadelphicum — wood lily
superbum — Turk's cap lily
Medeola
virginiana — Indian cucumber-root
MelanthiaceaeTrillium Family
Trillium
cernuum — nodding trillium
undulatum — painted trillium
Veratrum
viride — false hellebore
NartheciaceaeAsphodel Family
Aletris
farinosa — colic-root — Watch-Listed (Status Changed after 2011)
OrchidaceaeOrchid Family
Arethusa
bulbosa — dragon's mouth — Threatened
Calopogon
tuberosus — grass-pink — Watch-Listed (Status Changed after 2011)
Corallorhiza
maculata — spotted coralroot
trifida — pale or early coralroot
Cypripedium
acaule — pink lady's slipper
Goodyera
pubescens — downy rattlesnake-plantain
tesselata — checkered rattlesnake-plantain
Isotria
verticillata — large whorled pogonia — Watch-Listed
Liparis
loeselii — green twayblade — Watch-Listed (Status Changed after 2011)
Platanthera
blephariglottis — white fringed orchid (Habenaria blephariglottis) Watch-Listed (Status Changed after 2011)
ciliaris — yellow or orange fringed orchid (Habenaria ciliaris) Historic
clavellata — green woodland orchid (Habenaria clavellata)
flava var. herbiola — pale green orchid (Habenaria flava var. herbiola) Threatened
grandiflora — large purple fringed orchid (Habenaria fimbriata) Watch-Listed (Status Changed after 2011)
lacera — ragged fringed orchid (Habenaria lacera)
orbiculata — round-leaved orchid (Habenaria orbiculata) Watch-Listed
psycodes — small purple-fringed orchid (Habenaria psycodes)
Pogonia
ophioglossoides — rose pogonia
Spiranthes
cernua — nodding ladies' tresses
lacera var. lacera — slender ladies' tresses
tuberosa — little ladies' tresses — Watch-Listed
PoaceaeGrass Family
Agrostis
hyemalis — southern ticklegrass
perennans — upland bentgrass (Agrostis altissima)
scabra — northern ticklegrass
Alopecurus
aequalis — short-awned foxtail
Ammophila
breviligulata — dune grass
Andropogon
gerardii — big bluestem
glomeratus — bunched broomsedge
virginicus — Virginia broomsedge
Anthoxanthum
nitens — Indian sweetgrass (Hierochloe odorata)
Aristida
dichotoma — poverty grass
longespica — barrens needlegrass (Aristida intermedia)
purpurascens — purple needle-grass — Threatened
tuberculosa — seebeach needle-grass — Threatened
Brachyelytrum
aristosum — woodgrass (Brachyelytrum septentrionale, B. erectum var. septentrionale)
Bromus
ciliatus — fringed brome (Bromus canadensis)
Calamagrostis
canadensis — Canada bluejoint
cinnoides — reed bluejoint (Calamagrostis coarctata)
pickeringii — Pickering's reedgrass — Endangered
Cenchrus
longispinus — common sandbur
Cinna
arundinacea — common woodreed
Danthonia
compressa — trail oatgrass
spicata — wild oatgrass, poverty grass
Deschampsia
flexuosa — common hairgrass
Dichanthelium
acuminatum ssp. columbianum — downy panic grass (Dichanthelium columbianum, Panicum columbianum)
acuminatum ssp. fasciculatum — fascicled panic grass (Dichanthelium acuminatum var. fasciculatum, Panicum lanuginosum var. fasciculatum, P. subvillosum)
acuminatum ssp. implicatum — pondshore panic grass (Panicum meridionale, P. oricola)
acuminatum ssp. spretum — smooth panic grass (Dichanthelium spretum, Panicum spretum)
boreale — northern panic grass (Panicum boreale)
clandestinum — deertongue (Panicum clandestinum)
commutatum — changeable panic grass (Panicum commutatum)
depauperatum — depauperate panic grass (Panicum depauperatum)
dichotomum — forked panic grass (Panicum dichotomum)
dichotomum ssp. mattamuskeetense — Mattamuskeet panic grass (Dichanthelium mattamuskeetense, Panicum mattamuskeetense) Endangered
dichotomum ssp. microcarpon — tiny-fruited panic grass (Dichanthelium microcarpon, Panicum microcarpon)
latifolium — broad-leaved panic grass (Panicum latifolium)
linearifolium — linear-leaved panic grass (Panicum linearifolium)
oligosanthes — Scribner's panic grass (Dichanthelium oligosanthes var. scribnerianum, Panicum oligosanthes var. scribnerianum)
sphaerocarpon — round-fruited panic grass
wrightianum — Wright's panic grass (Panicum wrightianum) Special Concern
Digitaria
filiformis — slender crabgrass
Distichlis
spicata — seashore saltgrass
Echinochloa
muricata — cockspur grass, barnyard grass
walterii — Walter's cockspur
Elymus
hystrix — bottlebrush grass (Hystrix patula)
villosus — hairy wild rye — Endangered
virginicus var. virginicus — wild rye
virginicus var. halophilus — saltmarsh wild rye
Eragrostis
capillaris — lace lovegrass — Watch-Listed
pectinacea — tufted lovegrass
spectabilis — purple lovegrass
Festuca
rubra ssp. pruinosa — coastal red fescue
subverticillata — nodding fescue (Festuca obtusa)
Glyceria
acutiflora — sharp-scaled mannagrass
canadensis — rattlesnake grass
grandis — tall mannagrass (Glyceria maxima ssp. grandis)
obtusa — coastal mannagrass
septentrionalis — eastern floatgrass
striata — fowlmeadow grass
Leersia
oryzoides — rice cutgrass
virginica — white cutgrass
Muhlenbergia
capillaris — hairgrass — Historic
frondosa — wirestem muhly
glomerata — marsh muhly
mexicana — satingrass
schreberi — nimblewill
uniflora — pondshore muhly
Oryzopsis
asperifolia — spreading ricegrass
Panicum
capillare — witchgrass
dichotomiflorum — fall panic grass
dichotomiflorum var. puritanorum — Swenson's panic grass
philadelphicum — Philadelphia panic grass — Special Concern
rigidulum ssp. rigidulum — flat-stemmed panic grass (Panicum agrostoides, Coleataenia longifolia ssp. rigidula)
rigidulum subsp. pubescens — long-leaved panic grass (Panicum longifolium, Coleataenia longifolia ssp. longifolia) Threatened
verrucosum — warty panic grass
virgatum — switchgrass (Panicum virgatum var. spissum, P. virgatum var. cubense)
Paspalum
setaceum var. muhlenbergii — Muhlenberg's bead grass
setaceum var. psammophilum — sand bead grass (Paspalum psammophilum) Watch-Listed
setaceum var. setaceum — small-fruited bead grass — Watch-Listed
Piptatherum
pungens — little ricegrass (Oryzopsis pungens)
Piptochaetium
avenaceum — black oatgrass (Stipa avenacea) Watch-Listed
Poa
palustris — fowl-meadow grass
Puccinellia
maritima — seaside alkali-grass
pumila — northern alkali-grass — Historic
Schizachyrium
scoparium — little bluestem (Andropogon scoparium)
Setaria
parviflora — bristly foxtail (Setaria geniculata) Special Concern
Sorghastrum
nutans — Indian grass
Spartina
alterniflora — saltwater cordgrass
cynosuroides — big cordgrass — Threatened
patens — salt-hay
pectinata — freshwater or prairie cordgrass
×caespitosa — tufted cordgrass (Spartina patens × S. pectinata) (Spartina patens × S. pectinata)
Sphenopholis
intermedia — slender wedgegrass (Sphenopholis obtusata var. major)
Sporobolus
cryptandrus — sand dropseed — Watch-Listed
vaginiflorus — poverty grass
Torreyochloa
pallida var. pallida — pale mannagrass (Glyceria pallida, Puccinellia pallida)
pallida var. fernaldii — slender mannagrass (Torreyochloa fernaldii, Glyceria fernaldii, Puccinellia fernaldii)
Triplasis
purpurea — purple sandgrass
Tripsacum
dactyloides — northern gamagrass — Endangered
Vulpia
octoflora var. tenella — six-weeks fescue (Vulpia octoflora var. glauca, Festuca octoflora var. tenella)
Zizania
aquatica — wild rice
PontederiaceaePickerelweed Family
Pontederia
cordata — pickerelweed
PotamogetonaceaePondweed Family
Potamogeton
amplifolius — big-leaved pondweed
berchtoldii — Berchtold's pondweed, slender tiny pondweed (Potamogeton pusillus var. tenuissimus)
bicupulatus — hairlike pondweed (Potamogeton capillaceus)
confervoides — alga pondweed — Threatened
epihydrus — surface pondweed, ribbonleaf pondweed
foliosus — leafy pondweed
gramineus — grassleaf pondweed
natans — floating pondweed
oakesianus — Oakes' pondweed
perfoliatus — clasping pondweed
pulcher — spotted pondweed
robbinsii — Robbins' pondweed
spirillus — northern snailseed pondweed
Stuckenia
pectinata — sago false pondweed, sago pondweed (Potamogeton pectinatus)
RuppiaceaeWidgeongrass Family
Ruppia
maritima — ditch-grass, widgeon-grass
RuscaceaeSolomon's Seal Family
Maianthemum
canadense — Canada mayflower
racemosum — false Solomon's seal (Smilacina racemosa)
stellatum — starry Solomon's seal (Smilacina stellata)
trifolium — three-leaved false Solomon's seal (Smilacina trifolia) Watch-Listed
Polygonatum
pubescens — hairy Solomon's seal
SmilacaceaeBrier Family
Smilax
glauca — sawbrier, wild sarsaparilla
herbacea — carrion-flower
rotundifolia — catbrier, bullbrier
TyphaceaeCattail Family
Sparganium
americanum — common bur-reed
emersum — green-fruited bur-reed (Sparganium chlorocarpum)
eurycarpum — giant bur-reed
Typha
latifolia — broad-leaved cattail
XyridaceaeYellow-Eyed Grass Family
Xyris
difformis — bog yellow-eyed grass
smalliana — quagmire yellow-eyed grass — Watch-Listed
torta — twisted yellow-eyed grass
ZannichelliaceaeHorned Pondweed Family
Zannichellia
palustris — horned pondweed
ZosteraceaeEelgrass Family
Zostera
marina — eelgrass

Eudicota (Tricolpates)

AdoxaceaeViburnum Family, Moschatel Family
Sambucus
nigra ssp. canadensis — common elderberry (Sambucus canadensis)
racemosa — red-berried elderberry (Sambucus racemosa ssp. pubens)
Viburnum
acerifolium — maple-leaf viburnum
dentatum var. lucidum — northern arrowwood (Viburnum recognitum)
lantanoides — hobblebush (Viburnum alnifolium)
lentago — nannyberry, sweet viburnum
nudum var. cassinoides — wild raisin, witherod (Viburnum cassinoides)
AmaranthaceaeAmaranth Family
Amaranthus
cannabinus — saltmarsh hemp
Atriplex
cristata — seabeach orache (Atriplex pentandra, A. arenaria)
glabriuscula — prostrate orache — Watch-Listed
littoralis — seaside orache (Atriplex patula var. littoralis)
prostrata — halberd-leaf orache
subspicata — saline orache (Atriplex patula var. subspicata) Historic
Chenopodium
berlandieri var. macrocalycium — seabeach pigweed (Chenopodium macrocalycium)
pratericola — white pigweed
rubrum — coast-blite, red goosefoot — Historic (Status Changed after 2011)
simplex — maple-leaf goosefoot (Chenopodium gigantospermum, C. hybridum var. gigantospermum) Watch-Listed
Salicornia
ambigua — perennial glasswort (Salicornia virginica auct. non L.)
bigelovii — dwarf glasswort
depressa — annual glasswort (Salicornia europaea auct. non L.)
Suaeda
calceoliformis — American sea-blite (Suaeda americana) Special Concern
linearis — erect sea-blite
maritima ssp. maritima — saltmarsh sea-blite
maritima ssp. richii — Rich's sea-blite (Suaeda richii) Watch-Listed
AnacardiaceaeSumac Family, Cashew Family
Rhus
copallinum — flameleaf sumac, winged sumac
glabra — smooth sumac
hirta — staghorn sumac (Rhus typhina)
Toxicodendron
radicans — poison ivy (Rhus radicans)
vernix — poison sumac (Rhus vernix)
ApiaceaeParsley Family, Carrot Family
Angelica
lucida — seaside angelica — Watch-Listed
Aralia
hispida — bristly sarsaparilla
nudicaulis — wild sarsaparilla
racemosa — American spikenard
Cicuta
bulbifera — bulblet water-hemlock
maculata — water-hemlock
Heracleum
maximum — cow parsnip (Heracleum lanatum)
Hydrocotyle
americana — swamp pennywort, woodland pennywort
umbellata — pondshore pennywort
Ligusticum
scothicum — Scotch lovage, sea lovage
Lilaeopsis
chinensis — lilaeopsis — Watch-Listed
Osmorhiza
longistylis — aniseroot
Panax
trifolius — dwarf ginseng
Ptilimnium
capillaceum — Mock Bishop's weed
Sanicula
canadensis — Canadian black snakeroot or Canadian sanicle — Threatened
Sium
suave — water parsnip
Zizia
aurea — golden alexanders
ApocynaceaeDogbane Family
Apocynum
androsaemifolium — spreading dogbane
cannabinum — Indian hemp
×floribundum — hybrid dogbane (Apocynum androsaemifolium × A. cannabinum, A. ×medium)
Asclepias
amplexicaulis — clasping milkweed — Watch-Listed (Status Changed after 2011)
exaltata — tall milkweed
incarnata ssp. pulchra — downy swamp milkweed
quadrifolia — four-leaved milkweed
syriaca — common milkweed
tuberosa — butterfly milkweed — Watch-Listed
verticillata — whorled milkweed — Threatened
AquifoliaceaeHolly Family
Ilex
glabra — inkberry
laevigata — smooth winterberry
mucronata — catberry (Nemopanthus mucronatus)
opaca — American holly
verticillata — common winterberry
AsteraceaeAster Family, Composite Family
Ageratina
aromatica — aromatic boneset (Eupatorium aromaticum) Endangered
Ambrosia
artemisiifolia — annual ragweed
trifida — giant ragweed
Anaphalis
margaritacea — pearly everlasting (Gnaphalium margaritaceum)
Antennaria
howellii ssp. canadensis — Canadian pussytoes (Antennaria canadensis)
howellii ssp. neodioica — Greene's pussytoes (Antennaria neodioica var. grandis, A. neodioica var. chlorophylla, A. neodioica var. attenuata)
howellii ssp. petaloidea — field pussytoes (Antennaria neodioica ssp. petaloidea, A. petaloidea)
neglecta — pussytoes
parlinii ssp. fallax — broad-leaved pussytoes (Antennaria fallax, A. brainerdii, A. munda)
plantaginifolia — plantain-leaved pussytoes
Artemisia
campestris — seaside wormwood
Baccharis
halimifolia — sea-myrtle
Bidens
cernua — nodding bur-marigold
connata — swamp beggar-ticks
discoidea — small beggar-ticks
frondosa — beggar-ticks
hyperborea — estuary beggar-ticks — Endangered
laevis — smooth marigold
trichosperma — northern tickseed sunflower (Bidens coronata)
vulgata — tall beggar-ticks
Cirsium
discolor — field thistle
horridulum — yellow thistle — Watch-Listed
muticum — swamp thistle
pumilum — pasture thistle
Coreopsis
rosea — pink tickseed — Watch-Listed
Doellingeria
umbellata — tall flat-topped white aster (Aster umbellatus)
Erechtites
hieraciifolius — fireweed, pilewort
hieraciifolius var. megalocarpus — seaside pilewort (Erechtites megalocarpus) Watch-Listed
Erigeron
annuus — eastern daisy fleabane
canadensis — horseweed, hogweed (Conyza canadensis, Conyza canadensis var. pusilla)
philadelphicus — Philadelphia fleabane
pulchellus — robin's plantain fleabane
strigosus var. strigosus — rough fleabane (Erigeron strigosus var. beyrichii, E. strigosus var. discoideus)
Eupatorium
hyssopifolium — hyssop-leaved boneset
novae-angliae — New England boneset, pondshore boneset (Eupatorium leucolepis var. novae-angliae) Endangered
perfoliatum — boneset, thoroughwort
pilosum — rough boneset, verbena boneset (Eupatorium rotundifolium var. saundersii)
pubescens — hairy boneset (Eupatorium rotundifolium var. ovatum)
sessilifolium — upland boneset
Eurybia
divaricata — white wood aster (Aster divaricatus)
macrophylla — large-leaved aster (Aster macrophyllus)
radula — rough aster (Aster radula) Watch-Listed
spectabilis — showy aster (Aster spectabilis)
×herveyi — cartpath aster (Eurybia macrophylla × E. spectabilis, Aster ×herveyi)
Euthamia
caroliniana — coastal plain slender goldenrod (Euthamia tenuifolia, Solidago tenuifolia)
graminifolia — common flat-topped goldenrod (Solidago graminifolia)
Eutrochium
dubium — Atlantic Joe-Pye-weed (Eupatorium dubium)
fistulosum — hollow-stemmed Joe-Pye-weed (Eupatorium fistulosum)
purpureum — sweet Joe-Pye-weed (Eupatorium purpureum)
Gamochaeta
purpurea — purple cudweed — Endangered
Gnaphalium
uliginosum — low cudweed
Helianthus
divaricatus — woodland sunflower
strumosus — harsh sunflower
Hieracium
gronovii — Gronovius' hawkweed
paniculatum — woodland hawkweed
scabrum — rough hawkweed
umbellatum — Canada hawkweed (Hieracium canadense, H. kalmii)
venosum — rattlesnake weed
×marianum — Maryland hawkweed (Hieracium gronovii × H. venosum)
Ionactis
linariifolia — stiff aster, spruce aster (Aster linariifolius)
Iva
frutescens — hightide bush, saltmarsh elder (Iva frutescens ssp. oraria)
Krigia
virginica — dwarf dandelion
Lactuca
biennis — wild blue lettuce
canadensis — yellow wild lettuce
×morssii — Morss' wild lettuce (Lactuca biennis × L. canadensis)
Liatris
novae-angliae — New England blazing star (Liatris scariosa var. novae-angliae, L. borealis) Special Concern
Mikania
scandens — climbing hempvine
Nabalus
serpentarius — lion's foot, rattlesnake root (Prenanthes serpentaria) Endangered
trifoliolatus — gall-of-the-earth (Prenanthes trifoliolata)
Oclemena
acuminata — whorled wood aster (Aster acuminatus)
×blakei — Blake's aster (Aster ×blakei, Oclemena acuminata x O. nemoralis)
Packera
aurea — golden ragwort (Senecio aureus)
paupercula — balsam ragwort (Senecio pauperculus)
Pityopsis
falcata — sickle-leaved golden aster (Chrysopsis falcata)
Pluchea
odorata var. succulenta — saltmarsh fleabane
Pseudognaphalium
macounii — clammy cudweed (Gnaphalium macounii) Watch-Listed
obtusifolium — sweet everlasting, fragrant cudweed (Gnaphalium obtusifolium)
Sericocarpus
asteroides — toothed white-topped aster (Aster paternus, A. asteroides, Conyza asteroides)
linifolius — narrow-leaved white-topped aster (Conyza linifolia, Aster solidagineus)
Solidago
aestivalis — sphagnum goldenrod (Solidago rugosa var. sphagnophila)
altissima — tall goldenrod (Solidago canadensis var. scabra)
bicolor — silverrod, white goldenrod
caesia — wreath goldenrod, bluestem goldenrod
canadensis — Canada goldenrod
flexicaulis — zigzag goldenrod
gigantea — smooth goldenrod, late goldenrod
juncea — early goldenrod
latissimifolia — Elliott's goldenrod (Solidago elliottii var. ascendens)
nemoralis — gray goldenrod
odora — licorice goldenrod, sweet goldenrod
puberula — downy goldenrod
rugosa var. aspera — rough goldenrod, barrens goldenrod (Solidago aspera)
rugosa var. rugosa — rough-stemmed goldenrod (Solidago rugosa var. villosa, S. villosa)
sempervirens — seaside goldenrod
speciosa — showy goldenrod — Watch-Listed
uliginosa — swamp goldenrod (Solidago purshii)
ulmifolia — elm-leaf goldenrod
×asperula — goldenrod (Solidago rugosa × S. sempervirens)
Symphyotrichum
concolor — eastern silvery aster (Aster concolor) Endangered
cordifolium — blue heartleaf aster (Aster cordifolius)
dumosum — long-stalked aster (Aster dumosus var. coridifolius, A. dumosus var. subulifolius)
dumosum × S. racemosum — long-stalked aster × white oldfield aster
ericoides — heath white aster
lanceolatum — tall white or panicled aster (Aster lanceolatus, A. simplex)
lateriflorum — calico aster (Aster lateriflorus, A. vimineus)
novae-angliae — New England aster (Aster novae-angliae)
novi-belgii — New York aster (Aster novi-belgii var. novi-belgii)
patens — clasping aster, skydrops (Aster patens var. patens)
pilosum var. pilosum — white oldfield aster (Aster pilosus var. pilosus)
pilosum var. pringlei — Pringle's aster (Aster pilosus var. pringlei, A. pringlei)
puniceum — bristly aster, swamp aster (Aster puniceus var. puniceus, A. puniceus var. firmus)
racemosum — smooth white oldfield aster
subulatum — annual saltmarsh aster (Aster subulatus var. subulatus)
tenuifolium — perennial saltmarsh aster (Aster tenuifolius)
undulatum — clasping hartleaf aster (Aster undulatus)
Vernonia
noveboracensis — New York ironweed
Xanthium
strumarium L. var. canadense — cocklebur, clotbur (Xanthium echinatum, X. italicum)
BalsaminaceaeTouch-Me-Not Family
Impatiens
capensis — jewelweed
BetulaceaeBirch Family
Alnus
incana ssp. rugosa — speckled alder (Alnus rugosa, A. rugosa var. americana)
serrulata — smooth alder, common alder
Betula
alleghaniensis — yellow birch (Betula lutea)
lenta — sweet birch, cherry birch, black birch
papyrifera — paper birch
populifolia — gray birch
Carpinus
caroliniana — ironwood, hornbeam
Corylus
americana — American hazelnut
cornuta — beaked hazelnut
Ostrya
virginiana — eastern hop-hornbeam
BoraginaceaeBorage Family
Mertensia
maritima — oysterleaf — Endangered
Myosotis
laxa — smaller forget-me-not
verna — early or spring scorpion-grass
BrassicaceaeCabbage Family, Mustard Family
Boechera
canadensis — sickle-pod (Arabis canadensis)
Cakile
edentula — sea rocket
Cardamine
longii — Long's bittercress — Endangered
parviflora — narrow-leaved bittercress
pensylvanica — common or Pennsylvania bittercress
Lepidium
virginicum — Virginia pepperweed
Rorippa
palustris var. fernaldiana — marsh yellowcress (Rorippa islandica ssp. fernaldiana)
CampanulaceaeBluebell Family
Lobelia
cardinalis — cardinalflower
dortmanna — water lobelia
inflata — Indian tobacco
spicata — pale spiked lobelia
Triodanis
perfoliata — Venus' looking-glass (Specularia perfoliata)
CannabaceaeHemp Family
Celtis
occidentalis — common hackberry
CaprifoliaceaeHoneysuckle family
Diervilla
lonicera — bush-honeysuckle
Linnaea
borealis — twinflower — Special Concern (Status Changed after 2011)
Triosteum
aurantiacum — wild coffee
perfoliatum — perfoliate horse-gentian — Endangered
CaryophyllaceaePink Family
Cerastium
arvense — field chickweed
Honckenya
peploides ssp. robusta — seabeach sandwort (Arenaria peploides var. robusta)
Moehringia
lateriflora — grove sandwort (Arenaria lateriflora)
Silene
antirrhina — sleepy catchfly
Spergularia
marina — saltmarsh sand spurrey (Spergularia salina)
Stellaria
alsine — seep starwort
CelastraceaeBittersweet Family
Celastrus
scandens — American bittersweet — Threatened (Status Changed after 2011)
CistaceaeRockrose Family
Crocanthemum
bicknellii — hoary rockrose (Helianthemum bicknellii)
canadense — longbranch frostweed (Helianthemum canadense)
dumosum — bushy rockrose (Helianthemum dumosum) Watch-Listed (Status Changed after 2011)
propinquum — low frostweed, low rockrose (Helianthemum propinquum)
Hudsonia
ericoides — pinebarren golden heather
ericoides × H. tomentosa — pinebarren golden heather × woolly beach heather
tomentosa — woolly beach heather
Lechea
intermedia — largepod pinweed
maritima — beach pinweed
minor — thymeleaf pinweed — Watch-Listed
mucronata — hairy pinweed (Lechea villosa)
pulchella var. pulchella — Leggett's pinweed (Lechea leggettii)
tenuifolia — slender pinweed
ClethraceaePepperbush Family
Clethra
alnifolia — sweet pepperbush
ConvolvulaceaeBindweed Family
Calystegia
sepium ssp. americana — wild morning glory (Convolvulus sepium var. americanus)
Cuscuta
cephalanthi — buttonbush dodder
compacta — dense or compact dodder
coryli — pondshore dodder — Watch-Listed
gronovii — common dodder
indecora — collared dodder — Historic
CornaceaeDogwood Family
Benthamidia
florida — flowering dogwood (Cornus florida)
Chamaepericlymenum
canadense — bunchberry, dwarf cornel (Cornus canadensis)
Nyssa
sylvatica — tupelo, black gum
Swida
alternifolia — pagoda dogwood, alternate-leaved dogwood (Cornus alternifolia)
amomum var. amomum — silky dogwood (Cornus amomum ssp. amomum)
racemosa — gray dogwood (Cornus racemosa, C. foemina ssp. racemosa)
rugosa — round-leaved dogwood, talus dogwood (Cornus rugosa)
CrassulaceaeOrpine Family, Pygmyweed Family
Crassula
aquatica — shore pygmy-weed (Tillaea aquatica) Threatened
CucurbitaceaeGourd Family
Echinocystis
lobata — wild cucumber, prickly cucumber
Sicyos
angulatus — one-seeded burr cucumber
DroseraceaeSundew Family
Drosera
filiformis — threadleaf sundew
intermedia — spoonleaf or spatulate-leaf sundew
rotundifolia — roundleaf sundew
ElatinaceaeWaterwort Family
Elatine
americana — American waterwort (Elatine triandra var. americana) Endangered
minima — lesser waterwort
EricaceaeHeath Family
Arctostaphylos
uva-ursi — bearberry (Arctostaphylos uva-ursi ssp. coactilis)
Chamaedaphne
calyculata — leatherleaf, cassandra (Cassandra calyculata var. angustifolia)
Chimaphila
maculata — striped pipsissewa, spotted wintergreen
umbellata ssp. cisatlantica — pipsissewa
Corema
conradii — broom-crowberry — Watch-Listed
Epigaea
repens — trailing arbutus, mayflower
Eubotrys
racemosa — swamp sweetbells (Leucothoe racemosa)
Gaultheria
hispidula — creeping snowberry
procumbens — wintergreen, checkerberry, eastern teaberry
Gaylussacia
baccata — black huckleberry
bigeloviana — bog huckleberry (Gaylussacia dumosa var. bigeloviana)
frondosa — blue huckleberry, dangleberry
Hypopitys
monotropa — pinesap, false beechdrops (Monotropa hypopithys)
Kalmia
angustifolia — sheep laurel
latifolia — mountain laurel
Lyonia
ligustrina — maleberry
Moneses
uniflora — one-flowered shinleaf — Special Concern (Status Changed after 2011)
Monotropa
uniflora — Indian pipe
Pyrola
americana — round-leaved shinleaf, glossy shinleaf (Pyrola rotundifolia var. americana)
chlorantha — green-flowered shinleaf (Pyrola virens)
elliptica — elliptic shinleaf
Rhododendron
canadense — rhodora
periclymenoides — pink azalea (Rhododendron nudiflorum) Watch-Listed
viscosum — swamp azalea
Vaccinium
angustifolium — lowbush blueberry
caesariense — New Jersey highbush blueberry
corymbosum — highbush blueberry
fuscatum — black highbush blueberry (Vaccinium atrococcum)
macrocarpon — American cranberry, large cranberry
oxycoccos — small cranberry
pallidum — hillside blueberry, dryland blueberry (Vaccinium vacillans)
EuphorbiaceaeSpurge Family
Acalypha
rhomboidea — three-seeded mercury (Acalypha virginica var. rhomboidea)
virginica — Virginia three-seeded mercury — Watch-Listed
Euphorbia
maculata — spotted spurge (Chamaesyce maculata, Euphorbia supina)
polygonifolia — seaside spurge (Chamaesyce polygonifolia)
FabaceaePea Family
Amphicarpaea
bracteata — hog-peanut
Apios
americana — groundnut
Baptisia
tinctoria — yellow wild indigo, horsefly weed
Chamaecrista
fasciculata — partridge pea (Cassia fasciculata)
nictitans — wild sensitive plant (Cassia nictitans)
Crotalaria
sagittalis — rattlebox
Desmodium
canadense — showy ticktrefoil
ciliare — hairy small-leaved ticktrefoil
marilandicum — Maryland or smooth small-leaved ticktrefoil
obtusum — stiff tickrefoil (Desmodium rigidum)
paniculatum — panicled ticktrefoil
sessilifolium — sessile-leaved ticktrefoil — Historic
Hylodesmum
glutinosum — cluster-leaved ticktrefoil (Desmodium glutinosum)
nudiflorum — naked ticktrefoil (Desmodium nudiflorum)
Lathyrus
japonicus var. maritimus — beach pea (Lathyrus maritimus var. pellitus)
palustris — vetchling, marsh pea — Watch-Listed
Lespedeza
angustifolia — narrow-leaved bush-clover — Watch-Listed
capitata — round-headed bush-clover
hirta — hairy bush-clover
stuevei — Stueve's bush-clover — Watch-Listed (Status Changed after 2011)
violacea — wand bush-clover (Lespedeza intermedia)
virginica — slender bush-clover
×brittonii — Britton's bush-clover (Lespedeza procumbens × L. virginica)
×nuttallii — Nuttall's bush-clover (Lespedeza hirta × L. violacea)
Lupinus
perennis — wild lupine — Watch-Listed
Senna
hebecarpa — northern wild senna (Cassia hebecarpa) Endangered
Strophostyles
helvola — beach bean
Tephrosia
virginiana — goat's rue — Watch-Listed (Status Changed after 2011)
FagaceaeBeech Family
Castanea
dentata — American chestnut
Fagus
grandifolia — American beech
Quercus
alba — white oak
bicolor — swamp white oak
coccinea — scarlet oak
ilicifolia — scrub oak, bear oak
montana — chestnut oak (Quercus prinus)
prinoides — dwarf chestnut oak
rubra — northern red oak
velutina — black oak
GentianaceaeGentian Family
Bartonia
paniculata — panickled screwstem — Watch-Listed (Status Changed after 2011)
virginica — screwstem
Gentiana
andrewsii — Andrews' bottle gentian — Endangered
Gentianopsis
crinita — fringed gentian (Gentiana crinita)
Sabatia
campanulata — slender marsh-pink — Endangered
kennedyana — Plymouth gentian — Special Concern
GeraniaceaeGeranium Family, Cranesbill Family
Geranium
carolinianum — Carolina cranesbill
maculatum — wild geranium
robertianum — herb-Robert
GrossulariaceaeGooseberry Family, Currant Family
Ribes
hirtellum — swamp gooseberry
HaloragaceaeWatermilfoil Family
Myriophyllum
humile — lowly watermilfoil
pinnatum — pinnate watermilfoil (Myriophyllum scabratum) Special Concern
tenellum — leafless watermilfoil
Proserpinaca
palustris — mermaid-weed
pectinata — cut-leaved mermaid-weed
HamamelidaceaeWitch-Hazel Family
Hamamelis
virginiana — American witch-hazel
HypericaceaeSt. John's-Wort Family
Hypericum
boreale — northern dwarf St. John's-wort
canadense — Canadian St. John's-wort
ellipticum — pale St. John's-wort
gentianoides — orange grass, pineweed
majus — larger Canadian St. John's-wort
mutilum — dwarf St. John's-wort
punctatum — spotted St. John's-wort
×dissimulatum — Bicknell's St. John's-wort (Hypericum boreale x H. canadense)
Triadenum
virginicum — marsh St. John's-wort (Hypericum virginicum)
JuglandaceaeWalnut Family
Carya
cordiformis — bitternut hickory, swamp hickory
glabra — pignut hickory
ovata — shagbark hickory
tomentosa — mockernut hickory (Carya alba)
Juglans
cinerea — butternut — Watch-Listed
LamiaceaeMint Family
Lycopus
americanus — American water-horehound
amplectens — pondshore water-horehound, sessile water-horehound — Watch-Listed
rubellus — stalked water horehound, swamp water horehound — Endangered
uniflorus — tuberous water-horehound
virginicus — Virginia water-horehound, floodplain water-horehound
Mentha
canadensis — American field mint (Mentha arvensis var. villosa)
Prunella
vulgaris ssp. lanceolata — American heal-all
Pycnanthemum
incanum — hoary mountain mint
muticum — short-toothed mountain mint
tenuifolium — slender-leaved mountain mint
virginianum — Virginia mountain mint
Scutellaria
galericulata — marsh scullcap, common scullcap
integrifolia — hyssop skullcap — Historic
lateriflora — mad-dog skullcap, blue skullcap
Stachys
hispida — hispid hedgenettle (Stachys tenuifolia var. hispida, S. tenuifolia var. platyphylla)
hyssopifolia — hyssop hedgenettle — Watch-Listed
pilosa var. pilosa — American hedgenettle (Stachys palustris ssp. pilosa) Historic
Teucrium
canadense var. canadense — American germander, saltmarsh germander (Teucrium canadense var. virginicum)
Trichostema
dichotomum — forked bluecurls
LentibulariaceaeBladderwort Family
Utricularia
cornuta — horned bladderwort, naked bladderwort
geminiscapa — twin-scaped bladderwort
gibba — humped bladderwort (Utricularia biflora)
intermedia — northern bladderwort, flat-leaved milfoil
macrorhiza — common bladderwort, great bladderwort (Utricularia vulgaris var. americana, U. vulgaris ssp. macrorhiza)
purpurea — purple bladderwort
radiata — small floating bladderwort (Utricularia inflata var. minor)
resupinata — resupinate bladderwort — Threatened
subulata — slender, subulate, or zigzag bladderwort — Special Concern
LinaceaeFlax Family
Linum
intercursum — sandplain flax — Watch-Listed (Status Changed after 2011)
medium var. texanum — Texan flax — Threatened
virginianum — Virginia yellow flax
LinderniaceaeFalse Pimpernel Family
Lindernia
dubia var. anagallidea — false pimpernel (Lindernia anagallidea)
dubia var. dubia — false pimpernel (Lindernia dubia var. riparia, L. dubia var. inundata)
LythraceaeLoosestrife Family
Decodon
verticillatus — swamp loosestrife, waterwillow
MalvaceaeMallow Family
Hibiscus
moscheutos — swamp mallow (Hibiscus palustris)
Tilia
americana — basswood, American linden
MelastomataceaeMelastoma Family
Rhexia
virginica — northern meadowbeauty, wingstem meadowpitchers
MenyanthaceaeBogbean Family, Buckbean Family
Menyanthes
trifoliata — bogbeans
Nymphoides
cordata — floating heart
MyricaceaeWaxmyrtle Family
Comptonia
peregrina — sweetfern
Morella
pensylvancia — bayberry (Myrica pensylvanica)
Myrica
gale — sweet gale
MyrsinaceaeMyrsine Family, Starflower Family
Lysimachia
borealis — American starflower (Trientalis borealis ssp. borealis)
ciliata — fringed loosestrife
hybrida — narrow-leaved loosestrife
maritima — sea milkwort (Glaux maritima)
quadrifolia — whorled loosestrife
terrestris — swamp candles
thyrsiflora — tufted loosestrife
×producta — whorled loosestrife x swamp candles (Lysimachia quadrifolia × L. terrestris)
OleaceaeOlive Family
Fraxinus
americana — white ash
nigra — black ash
pennsylvanica — green ash (Fraxinus pennsylvanica var. subintegerrima)
OnagraceaeEvening Primrose Family
Chamaenerion
angustifolium — great willowherb, fireweed (Chamerion angustifolium, Epilobium angustifolium)
Circaea
alpina — small enchanter's nightshade
canadensis — enchanter's nightshade (Circaea lutetiana ssp. canadensis, C. quadrisulcata var. canadensis)
Epilobium
ciliatum — glandular willowherb (Epilobium glandulosum var. adenocaulon)
coloratum — eastern willowherb, purple-leaved willowherb
leptophyllum — narrow-leaved willowherb
palustre — marsh willowherb
strictum — downy willowherb
Ludwigia
palustris — water purslane, mud loosestrife (Ludwigia palustris var. americana)
sphaerocarpa — round-fruited seedbox — Endangered
Oenothera
biennis — common evening primrose
oakesiana — Oakes' evening primrose (Oenothera cruciata var. stenopetala, O. parviflora var. oakesiana)
parviflora — small-flowered evening primrose
perennis — little sundrops
OrobanchaceaeBroomrape Family
Agalinis
maritima — saltmarsh false foxglove (Gerardia maritima)
paupercula — small-flowered false foxglove (Gerardia paupercula, G. purpurea var. paupercula)
purpurea — purple false foxglove (Gerardia purpurea)
tenuifolia — slender false foxglove (Gerardia tenuifolia)
Aureolaria
flava — smooth false foxglove (Gerardia flava)
pedicularia — fernleaf yellow false foxglove (Gerardia pedicularia)
virginica — downy false foxglove (Gerardia virginica)
Castilleja
coccinea — scarlet painted cup — Historic
Epifagus
virginiana — beech-drops
Melampyrum
lineare — cowwheat (Melampyrum lineare var. latifolium, M. lineare var. pectinatum, M. lineare var. americanum)
Orobanche
uniflora — one-flowered cancer-root, ghost pipe
Pedicularis
canadensis — wood-betony, Canadian lousewort, common lousewort
OxalidaceaeWoodsorrel Family
Oxalis
dillenii ssp. dillenii — showy yellow woodsorrel
stricta — common yellow woodsorrel (Oxalis europaea, O. fontana)
PapaveraceaePoppy Family
Capnoides
sempervirens — pale corydalis or rock-harlequin (Corydalis sempervirens)
PenthoraceaeDitch Stonecrop Family
Penthorum
sedoides — ditch stonecrop
PhrymaceaeLopseed Family
Mimulus
ringens — long-stalked monkey-flower
PhytolaccaceaePokeweed Family
Phytolacca
americana — pokeweed
PlantaginaceaePlantain Family
Callitriche
heterophylla — variable water-starwort
Chelone
glabra — white turtlehead
Gratiola
aurea — golden hedgehyssop
neglecta — mud or clammy hedgehyssop
Nuttallanthus
canadensis — blue toadflax, old-field toadflax (Linaria canadensis)
Plantago
intermedia — saltmarsh plantain (Plantago major var. intermedia, P. major var. scopulorum)
maritima — seaside plantain (Plantago oliganthos, P. juncoides var. decipiens)
pusilla — dwarf plantain — Watch-Listed
rugelii — American plantain
Veronica
americana — American brooklime (Veronica beccabunga var. americana)
peregrina ssp. peregrina — purslane speedwell, neckweed
scutellata — marsh speedwell, narrow-leaved speedwell
PlatanaceaePlanetree Family
Platanus
occidentalis — sycamore or American plane tree
PlumbaginaceaeLeadwort Family
Limonium
carolinianum — sea lavender
PolygalaceaeMilkwort Family
Polygala
cruciata — cross-leaved milkwort
nuttallii — Nuttall's milkwort — Watch-Listed
polygama — racemed milkwort, bitter milkwort
sanguinea — purple milkwort, common milkwort
verticillata — whorled milkwort — Watch-Listed
PolygonaceaeBuckwheat Family
Fallopia
cilinodis — fringed bindweed (Polygonum cilinode)
cristata — winged bindweed (Polygonum scandens var. cristatum, P. cristatum)
scandens — climbing false buckwheat (Polygonum scandens)
Persicaria
amphibia — erect water smartweed (Polygonum amphibium var. emersum, P. coccineum)
arifolia — halberdleaf tearthumb (Polygonum arifolium var. pubescens)
careyi — Carey's smartweed (Polygonum careyi)
hydropiperoides — false water-pepper (Polygonum hydropiperoides)
lapathifolia — nodding smartweed (Polygonum lapathifolium var. salicifolium)
pensylvanica — pinkweed, Pennsylvania smartweed (Polygonum pensylvanicum)
punctata — dotted smartweed (Polygonum punctatum)
puritanorum — pondshore smartweed (Polygonum puritanorum) Special Concern
robustior — big water-smartweed, coarse smartweed (Polygonum robustius, P. punctatum var. majus)
sagittata — arrowleaf tearthumb (Polygonum sagittatum)
setacea — swamp smartweed (Polygonum setaceum var. interjectum) Threatened
Polygonum
articulatum — jointweed (Polygonella articulata)
buxiforme — boxleaf knotweed (Polygonum aviculare var. littorale)
erectum — erect knotweed
ramosissimum var. prolificum — saltmarsh knotweed (Polygonum prolificum)
ramosissimum var. ramosissimum — saltmarsh or bushy knotweed (Polygonum exsertum)
tenue — rock knotweed — Watch-Listed
Rumex
britannica — great water dock (Rumex orbiculatus)
pallidus — seabeach dock, white dock — Threatened
verticillatus — swamp dock, water dock — Threatened
PrimulaceaePrimrose Family
Hottonia
inflata — featherfoil — Watch-Listed
RanunculaceaeButtercup Family
Actaea
pachypoda — doll's eyes, white baneberry
rubra — red baneberry
Anemone
americana — blunt-lobed liverleaf (Hepatica nobilis var. obtusa, H. americana)
quinquefolia — wood anemone, windflower
virginiana — thimbleweed
Aquilegia
canadensis — wild columbine, red columbine
Caltha
palustris — marsh marigold
Clematis
virginiana — virgin's-bower
Coptis
trifolia — three-leaf goldthread (Coptis groenlandica, C. trifolia ssp. groenlandica)
Ranunculus
abortivus — kidney-leaved buttercup, small-flowered crowfoot
aquatilis var. diffusus — white water crowfoot
cymbalaria — seaside crowfoot
flabellaris — yellow water crowfoot
pensylvanicus — bristly buttercup — Special Concern
recurvatus — hooked crowfoot
Thalictrum
dioicum — early meadowrue
pubescens — tall meadowrue (Thalictrum pubescens var. hebecarpum, T. polygamum)
revolutum — waxy-leaved meadowrue
thalictroides — rue-anemone (Anemonella thalictroides)
RhamnaceaeBuckthorn Family
Ceanothus
americanus — New Jersey tea
RosaceaeRose Family
Agrimonia
gryposepala — common agrimony, woodland agrimony
Amelanchier
canadensis — thicket shadbush, eastern serviceberry, juneberry
laevis — smooth shadbush (Amelanchier arborea var. laevis)
nantucketensis — Nantucket shadbush — Watch-Listed
spicata — running serviceberry, running shadbush (Amelanchier stolonifera)
Argentina
egedii ssp. groenlandica — saltmarsh silverweed (Potentilla egedii var. groenlandica)
Aronia
melanocarpa — black chokeberry (Photinia melanocarpa)
×floribunda — purple chokeberry (Aronia ×prunifolia, Photinia floribunda, Aronia arbutifolia x A. melanocarpa)
Crataegus
coccinea — scarlet hawthorn (Crataegus pedicellata)
macracantha — long-thorned hawthorn (Crataegus succulenta var. macracantha)
macrosperma — large-seeded hawthorn (Crataegus roanensis)
pruinosa — frosted hawthorn
Fragaria
virginiana — wild strawberry
Geum
canadense — white avens
Potentilla
canadensis — dwarf cinquefoil
norvegica — three-finger, strawberryweed
simplex — common cinquefoil
Prunus
maritima — beach plum
pensylvanica — pin cherry, fire cherry
serotina — black cherry
susquehanae — sand cherry (Prunus pumila var. susquehanae)
virginiana — chokecherry
Rosa
carolina — Carolina rose, pasture rose
nitida — shiny rose, New England rose
palustris — swamp rose
virginiana — Virginia rose, low rose
Rubus
allegheniensis — Allegheny blackberry, common blackberry
arenicola — New England sand blackberry
argutus — serrate blackberry
enslenii — southern dewberry (Rubus sempervirens)
flagellaris — northern dewberry
flagellaris × R. frondosus — northern dewberry x leafy blackberry
hispidus — bristly dewberry
hispidus × R. semisetosus — bristly dewberry x bog blackberry
idaeus ssp. strigosus — wild red raspberry (Rubus idaeus var. canadensis, R. strigosus, R. idaeus ssp. sachalinensis)
jaysmithii — Smith's blackberry
occidentalis — black raspberry
pensilvanicus — highbush blackberry
pubescens — swamp dewberry, dwarf raspberry
semisetosus — bog blackberry
semisetosus × R. setosus — bog blackberry x bristly blackberry
setosus — bristly blackberry
vermontanus — Vermont blackberry
Sibbaldiopsis
tridentata — three-toothed cinquefoil (Potentilla tridentata)
Spiraea
alba var. latifolia — meadowsweet (Spiraea latifolia)
tomentosa — steeplebush
RubiaceaeBedstraw Family, Coffee Family, Madder Family
Cephalanthus
occidentalis — common buttonbush
Galium
aparine — cleavers
asprellum — rough bedstraw
circaezans — wild licorice
obtusum — bluntleaf marsh bedstraw or large marsh bedstraw
palustre — common marsh bedstraw
pilosum — hairy bedstraw
tinctorium — Clayton's marsh bedstraw
triflorum — woodland bedstraw
Houstonia
caerulea — bluets (Hedyotis caerulea)
longifolia — long-leaved bluets (Houstonia purpurea var. longifolia, Hedyotis longifolia) Endangered
Mitchella
repens — partridgeberry
SalicaceaeWillow Family
Populus
grandidentata — bigtooth aspen
tremuloides — trembling aspen
Salix
bebbiana — Bebb's willow
discolor — large pussy willow
eriocephala — heartleaf willow (Salix rigida, S. cordata)
humilis — prairie willow, upland willow
lucida — shining willow
nigra — black willow
occidentalis — dwarf upland willow (Salix humilis var. microphylla, S. tristis, S. humilis var. tristis)
pedicellaris — bog willow — Watch-Listed
petiolaris — slender willow, meadow willow (Salix gracilis)
sericea — silky willow
×conifera — hybrid of pussy and upland willow (Salix discolor × humilis)
SantalaceaeSandalwood Family
Comandra
umbellata — bastard toadflax
SapindaceaeSoapberry Family, Maple Family
Acer
rubrum — red maple
saccharinum — silver maple
saccharum — sugar maple
SarraceniaceaePitcherplant Family
Sarracenia
purpurea — purple pitcherplant
SaxifragaceaeSaxifrage Family
Chrysosplenium
americanum — golden saxifrage, water-carpet
Micranthes
pensylvanica — swamp saxifrage (Saxifraga pensylvanica)
virginiensis — early saxifrage (Saxifraga virginiensis)
ScrophulariaceaeFigwort Family
Limosella
australis — Atlantic mudwort (Limosella subulata) Watch-Listed (Status Changed after 2011)
Scrophularia
lanceolata — American figwort
SolanaceaeNightshade Family
Physalis
grisea — strawberry-tomato (Physalis pruinosa auct. non L., P. pubescens var. grisea)
heterophylla — clammy ground-cherry
Solanum
ptychanthum — eastern black nightshade (Solanum americanum auct. non P. Miller)
TheophrastaceaeWater-Pimpernel Family
Samolus
valerandi — water pimpernel (Samolus parviflorus)
UlmaceaeElm Family
Ulmus
americana — American elm, white elm
UrticaceaeNettle Family
Boehmeria
cylindrica — false nettle, bog hemp
Pilea
pumila — clearweed, richweed
Urtica
dioica ssp. gracilis — slender stinging nettle
VerbenaceaeVervain Family
Verbena
hastata — blue vervain, common vervain
urticifolia — white vervain
ViolaceaeViolet Family
Viola
blanda — large-leaved white violet (Viola incognita)
brittoniana — northern coastal violet, Britton's violet (Viola atlantica, V. pedatifida ssp. brittoniana) Threatened
cucullata — marsh blue violet
labradorica — American dog violet (Viola conspersa)
lanceolata — bog white violet, lanceleaf violet
pallens — northern white violet (Viola macloskeyi ssp. pallens)
pedata — birdsfoot violet
primulifolia — primrose-leaf violet
pubescens — downy yellow violet (Viola pensylvanica)
rotundifolia — roundleaf violet
sagittata — ovate-leaved violet, arrowleaf violet (Viola fimbriatula)
sororia — common blue violet (Viola papilionacea, Viola septentrionalis)
VitaceaeGrape Family
Parthenocissus
quinquefolia — Virginia creeper
vitacea — thicket creeper, grape woodbine (Parthenocissus inserta)
Vitis
aestivalis — summer grape
aestivalis var. bicolor — silver-leaved grape (Vitis aestivalis var. argentifolia)
labrusca — fox grape


Notes & Disclaimer
      Taxonomic treatments constantly change. A few changes took place during the years passed from the publication of the Checklist 2011, so current approaches to species may sometimes deviate from those in the Checklist. Some names had been missing from the 2011 Checklist and were recognized later, for example, at least some records of Amelanchier laevis from Plymouth County must belong to Amelanchier x intermedia (a hybrid of Amelanchier laevis and A. canadensis). In fact all records at Salicicola from Plymouth County belong to the latter species and not to Amelanchier laevis. It is quite possible that Amelanchier laevis is not present in Plymouth County.
      Changes in understanding the scope of certain species may affect their state-protected status. For example, prior to publication of the Checklist 2011, the understanding of Nantucket shadbush Amelanchier nantucketensis had been changed. It was decided that inland populations of a shrub formerly treated as a separate species Amelanchier x micropetala actually belonged to A. nantucketensis previously known from just Cape Cod and the Islands. The change involved the treatment of Plymouth populations as well as the population in the Blue Hills Reservation and resulted in adding many new occurrences to the range of A. nantucketensis. Consequently, the species lost its state-protected status. At Salicicola we disagree with this decision: we believe lumping A. x micropetala and A. nantucketensis was not enough justified; Nantucket shadbush must retain its protected status. However, this list depicts the currently lowered (Watch-Listed) status of the shrub along with the concept of its presence in Plymouth County.
      Additional changes in comparison with the Checklist 2011:
* The spelling/style of common names has been unified, typos noticed in the Checklist corrected.
* The following species have been excluded from the list of native plants:
Aronia arbutifolia (according to the study undertaken by Bryan Connolly (PhD Thesis, 2014), it does not occur in coastal New England, existing records appearing to be mis-identifications);
Typha angustifolia (now treated as not native in Massachusetts, or even invasive: [1], [2], etc.);
Salsola kali (both ssp. kali and ssp. pontica are non-native, according to the Flora of North America).

Generated Feb. 10, 2021, 5:14 p.m. (UTC) — Draft #1.0.7 [revno 35+]