Species are included on the list for a number of reasons:
- The species is thought to be rare, declining, or vulnerable, but there is insufficient information on the condition, number and size of populations to make a determination (termed "Uncommon" in the "Reasons" for listing field)
- The species was removed from the official regulatory list, but the Program believes it still is in need of some conservation attention (termed "MESA-Delisted" in the "Reasons" for listing field)
- The species is uncommon and there are uncertainties about the taxonomic status (termed "Taxonomic Issues" in the "Reasons" for listing field)
- the species is uncommon and its status as a native or an introduced species is undecided (termed "Introduced?" in the "Reasons" for listing field)
- The species is recently discovered or rediscovered in the Commonwealth and is placed on the Watch List to ensure it is tracked while botanists determine whether it is appropriate for proposal to the MESA List.
Plant Watch List
Scientific Name | Common Name | S Rank | New England Rank | G Rank | Reason | Synonym |
Acalypha virginica | Three-seeded Mercury | S1S2 | G5 | Uncommon | ||
Acer nigrum | Black Maple | S3 | G5 | MESA-Delisted | Acer saccharum ssp. nigrum; Acer saccharum var. nigrum | |
Achillea millefolium var. lanulosa | Seaside Yarrow | S3S4 | G5T5 | MESA-Delisted | Achillea lanulosa; Achillea millefolium var. lanulosa | |
Aletris farinosa | Colic-root | S4 | G5 | Decreasing | ||
Amelanchier intermedia | Intermediate Shadbush, Intermediate Serviceberry | SNR | GNA | Taxonomic Issue | Amelanchier intermedia | |
Amelanchier nantucketensis | Nantucket Shadbush | S3 | 1 | G3Q | MESA-Delisted | Amelanchier x nantucketensis |
Angelica lucida | Seaside-angelica | S2? | IND. | G5 | Uncommon | Coelopleurum lucidum |
Asclepias amplexicaulis | Clasping Milkweed | SNR | G5 | Uncommon | ||
Asclepias tuberosa | Orange Milk-weed | S4 | 3 | G5 | MESA-Delisted | |
Athyrium asplenioides | Southern Lady-fern | S2? | G5T5 | Uncommon | Athyrium filix-femina var. asplenioides; Athyrium asplenioides | |
Atriplex glabriuscula | Prostrate Orache | S1S2 | G5 | Uncommon | Atriplex glabriuscula var. glabriuscula | |
Bartonia paniculata ssp. paniculata | Twining Screwstem | SNR | IND. | G5T5 | Uncommon | Bartonia paniculata var. paniculata; Bartonia paniculata |
Betula cordifolia | Heart-leaf Paper-birch | SNR | G5T5 | Uncommon | Betula cordifolia | |
Betula nigra | River Birch | S3 | 2 | G5 | Uncommon | |
Bidens beckii | Water Marigold | S2 | G5 | Uncommon | Bidens beckii | |
Boechera stricta | Drummond's Rockcress | S2S3 | G5 | Uncommon | Boechera stricta | |
Bolboschoenus fluviatilis | River Bulrush | S2 | G5 | MESA-Delisted | Bolboschoenus fluviatilis; Scirpus fluviatilis | |
Bolboschoenus novae-angliae | Long-stalked Bullrush | S2? | 2 | G5 | Uncommon | Scirpus subterminalis var. cylindricus; Scirpus cylindricus; Bolboschoenus novae-angliae; Bolboschoenus x novae-angliae; Scirpus novae-angliae |
Botrychium angustisegmentum | Narrow Triangle Grape-fern | S2S3 | G5T4 | Uncommon | Botrychium lanceolatum ssp. angustisegmentum; Botrychium angustisegmentum | |
Botrychium matricariifolium | Daisy-leaf Moonwort | S2? | G5 | Uncommon | Botrychium matricariaefolium | |
Botrychium oneidense | Blunt-lobed Grape-fern | S1S2 | IND. | G4 | Uncommon | Sceptridium oneidense |
Botrychium simplex | Least Moonwort | S1S2 | G5 | Uncommon | ||
Botrychium tenebrosum | Swamp Moonwort | S1S2 | G5T4? | Uncommon | Botrychium tenebrosum | |
Bouteloua curtipendula | Side-oats Gamma grass | SNR | 2 | G5 | Introduced? | |
Calamagrostis canadensis var. macouniana | Macoun's Reedgrass | SNR | G5T5? | Uncommon | ||
Calopogon tuberosus | Grass-pink | SNR | G5 | Uncommon | Calopogon pulchellus | |
Calystegia silvatica ssp. fraterniflora | Short-stalked False Bindweed | S2 | 2 | G5T5 | Historic Rediscovered | Calystegia silvatica ssp. fraterniflorus; Convolvulus fraterniflorus |
Cardamine bulbosa | Spring-Cress | S2S3 | G5 | Uncommon | Cardamine rhomboidea | |
Cardamine maxima | Three-leaved Toothwort | S2? | IND. | G5 | Uncommon | Dentaria maxima |
Carex abscondita | Concealed Sedge | S2? | G4G5 | Uncommon | ||
Carex aestivalis | Summer-sedge | S2S3 | G4 | Uncommon | ||
Carex aquatilis var. substricta | Water-sedge | SNR | G5TNR | Uncommon | Carex substricta | |
Carex bicknellii | Bicknell's Sedge | S1S2 | IND. | G5 | Uncommon | |
Carex buxbaumii | Buxbaum's Sedge | S2? | G5 | Uncommon | ||
Carex cristatella | Crested Sedge | S2? | G5 | Uncommon | ||
Carex debilis var. debilis | Southern Stalked Sedge | SNR | G5T5 | Uncommon | Carex debilis | |
Carex deflexa | Mountain Sedge | S1 | G5 | Historic Rediscovered | ||
Carex diandra | Panicled Sedge | S1S2 | G5 | Uncommon | ||
Carex emoryi | Emory's Sedge | S1 | G5 | Uncommon | ||
Carex exilis | Bog Sedge | S2S3 | G5 | Uncommon | ||
Carex garberi | Elk Sedge | S1 | 2(a) | G5 | Uncommon | |
Carex haydenii | Hayden's Sedge | S1S2 | G5 | Uncommon | ||
Carex limosa | Mud Sedge | S2? | G5 | Uncommon | ||
Carex molesta | Troublesome Sedge | S1? | G4 | Uncommon | ||
Carex prairea | Praire-sedge | S1? | G5 | Uncommon | ||
Carex retrorsa | Hooked Sedge | S2S3 | G5 | Uncommon | ||
Carex sparganioides | Bur-sedge | S4 | G5 | Uncommon? | ||
Carex viridula ssp. viridula | Little Green Sedge | S1S2 | G5T5 | Uncommon | ||
Caulophyllum giganteum | Early Blue Cohosh | S2S3 | G4G5 | Uncommon | Caulophyllum thalictroides var. giganteum | |
Chenopodium simplex | Maple-leaf Goosefoot | S3? | G5 | Uncommon | Chenopodium hybridum; Chenopodiastrum simplex | |
Chenopodium standleyanum | Woodland-goosefoot | SNR | IND. | G5 | Introduced? | |
Cirsium horridulum var. horridulum | Yellow Thistle | S2S3 | G5T5 | Uncommon | ||
Coeloglossum viride | Frog-orchis | S3 | G5 | Uncommon. | Habenaria viridis; Dactylorhiza viridis | |
Corema conradii | Broom Crowberry | S3 | G4 | MESA-Delisted | ||
Coreopsis rosea | Pink Tickseed | S3 | 1 | G3 | Uncommon | |
Crataegus biltmoreana | Biltmore Hawthorn | SNR | G5 | Uncommon | Crataegus intricata var. biltmoreana | |
Crataegus keepii | Keep's Hawthorn | SNR | GNR | Uncommon? | ||
Crataegus stonei | Stone's Hawthorn | S1 | 4 | GNR | Uncommon | |
Crocanthemum dumosum | Bushy Rockrose | S3 | 1 | G3 | MESA-Delisted | Crocanthemum dumosum |
Cuscuta coryli | Pondshore-dodder | S1? | 2 | G5? | Uncommon | |
Cuscuta polygonorum | Smartweed-dodder | S3S4 | G5 | Introduced? | ||
Cyperus odoratus | Saltmarsh Flatsedge | S1S2 | IND. | GNR | MESA-Delisted | Cyperus odoratus var. odoratus |
Cyperus polystachyos | Texas Flatsedge | S2S3 | G5 | Uncommon | ||
Cyperus retrorsus | Pine Barren Flatsedge | S1? | G5 | Uncommon | ||
Cystopteris laurentiana | Laurentian Bladder Fern | S2S3 | G3 | Uncommon | Cystopteris fragilis var. laurentiana; Cystopteris x laurentiana | |
Desmodium canescens | Hoary Tick-trefoil | S3 | 2 | G5 | Uncommon | |
Dichanthelium acuminatum ssp. acuminatum | Auburn Panic-grass | S1? | G5T5 | Uncommon | ||
Digitaria cognata ssp. cognata | Fall Witch-grass | SNR | G5T5 | Introduced? | Digitaria cognata ssp. cognata; Leptoloma cognatum var. cognatum; Leptoloma cognatum | |
Dioscorea villosa | Wild Yam | SNR | G4G5 | Introduced? | ||
Diplazium pycnocarpon | Glade Fern | S3 | G5 | MESA-Delisted | Athyrium pycnocarpon; Homalosorus pycnocarpos | |
Dryopteris campyloptera | Mountain Wood-fern | S3? | G5 | Uncommon | Dryopteris austriaca | |
Dryopteris goldiana | Goldie's Fern | S3 | G4G5 | MESA-Delisted | Dryopteris goldieana | |
Elatine triandra | European Waterwort | SNR | G5 | Introduced? | Elatine triandra var. triandra | |
Eleocharis engelmannii var. detonsa | Englemann's Spike-rush | S1S2 | G4G5T3? | Uncommon | ||
Eleocharis engelmannii var. engelmannii | Englemann's Spike-rush | S1S2 | G4G5TNR | Uncommon | ||
Eleocharis erythropoda | Redfoot Spike-rush | S3 | G5 | MESA-Delisted | ||
Eleocharis melanocarpa | Black-fruited Spike-rush | S3 | G4 | MESA-Delisted | ||
Eleocharis rostellata | Beaked or Saltmarsh Sedge | S2? | IND. | G5 | Uncommon | |
Elymus macgregorii | Early Wild Rye | S2? | G5 | Uncommon | ||
Elymus trachycaulus ssp. trachycaulus | Slender Wild Rye | SNR | G5T5 | Uncommon | Elymus trachycaulus ssp. teslinensis; Agropyron trachycaulum; Agropyron trachycaulum var. trachycaulum; Agropyron trachycaulum var. novae-angliae | |
Equisetum palustre | Marsh Horsetail | SNR | G5 | Historic Rediscovered | ||
Equisetum pratense | Meadow-horsetail | S2 | G5 | Uncommon | ||
Equisetum variegatum ssp. variegatum | Variegated Scouring Rush | S3 | G5T5 | MESA-Delisted | Equisetum variegatum ssp. variegatum | |
Eragrostis capillaris | Lace-grass | S2? | IND. | G5 | Uncommon | |
Erechtites hieraciifolius var. megalocarpus | Seaside Pilewort | S2S3 | G5T3 | Uncommon | Erechtites hieraciifolia var. megalocarpa | |
Eurybia radula | Rough Aster | S1S2 | G5 | Uncommon | Aster radula | |
Fuirena pumila | Annual Umbrella-sedge | S3 | 3 | G4 | MESA-Delisted | |
Galearis spectabilis | Showy Orchis | S2S3 | G5 | Uncommon | Orchis spectabilis | |
Gentiana linearis | Narrow-leaved Gentian | S2? | G4G5 | Uncommon | Gentiana saponaria var. linearis | |
Gentianella quinquefolia | Stiff Gentian | S2S3 | 2 | G5 | Uncommon | Gentiana quinquefolia |
Geranium bicknellii | Bicknell's Crane's Bill | S2S3 | G5 | Uncommon | ||
Geum virginianum | Virginia Avens | S2? | G5 | Uncommon | ||
Hedeoma hispida | Rough Pennyroyal | S1 | G5 | Introduced? | Hedeoma hispidum | |
Helenium autumnale | Common Sneezeweed | S3? | G5 | Uncommon | ||
Heteranthera dubia | Water Star-grass | S2S3 | G5 | Uncommon | Zosterella dubia | |
Hottonia inflata | Featherfoil | S3 | G4 | Uncommon | ||
Hypopitys lanuginosa | Hairy Pine-sap | SNR | G5 | Uncommon? | Monotropa lanuginosa | |
Iris prismatica | Slender blue flag | SNR | G4G5 | Uncommon | Limniris prismatica | |
Isotria verticillata | Large Whorled Pogonia | S3S4 | G5 | MESA-Delisted | ||
Juglans cinerea | Butternut | S4? | IND. | G3 | Uncommon | |
Juncus ambiguus | Seaside Toad-rush | S1? | G5 | Historic Rediscovered | Juncus bufonius var. halophilus; Juncus bufonius var. ranarius; Juncus ranarius | |
Juncus nodosus | Knotted Rush | SNR | G5 | Uncommon | ||
Juncus torreyi | Torrey's Rush | SNR | 2 | G5 | Introduced? | |
Juniperus horizontalis | Prostrate Juniper | SNR | G5 | Introduced? | ||
Lactuca hirsuta | Hairy Wild Lettuce | S2S3 | G5? | Uncommon | ||
Lathyrus palustris | Vetchling, Marsh-pea | SNR | G5 | Uncommon | ||
Lechea minor | Thyme-leaf Pinweed | S2S3 | IND. | G5 | Uncommon | |
Lespedeza angustifolia | Narrow-leaved Bush-clover | S3? | G5 | Uncommon | ||
Lespedeza frutescens | Violet Bush-clover | S3 | G5 | MESA-Delisted | Lespedeza violacea | |
Lespedeza stuevei | S1 | IND. | G4? | Historic Rediscovered | ||
Lilaeopsis chinensis | Lilaeopsis | S2? | G5 | Uncommon | ||
Limosella australis | Atlantic Mudwort | SNR | G4G5 | Uncommon | Limosella aquatica var. tenuifolia | |
Linum intercursum | Sandplain Flax | S3 | G4 | MESA-Delisted | ||
Linum striatum | Panicled Yellow Flax, Ridgestem Yellow Flax | S2S3 | G5 | Uncommon | ||
Liparis loeselii | Loesel's Twayblade | SNR | G5 | Uncommon. | ||
Lobelia kalmii | Brook-lobelia | S2S3 | G5 | Uncommon | ||
Lonicera sempervirens | Trumpet Honeysuckle | SNR | G5 | Introduced? | ||
Lonicera villosa | Mountain Fly-honeysuckle | SNR | G5 | Uncommon? | Lonicera caerulea var. villosa | |
Lupinus perennis | Wild Lupine | S3S4 | 3 | G5 | Uncommon | |
Luzula bulbosa | Bulbous Wood-rush | S2? | G5 | Uncommon | Luzula multiflora var. bulbosa; Luzula campestris var. bulbosa | |
Luzula multiflora ssp. frigida | Boreal Wood-rush | SNR | G5T5 | Uncommon | ||
Lycopus amplectens | Sessile Water-horehound | S2S3 | G5 | Uncommon | ||
Lythrum alatum | Winged Loosestrife | S1? | G5 | Uncommon | ||
Maianthemum trifolium | Three-leaved Solomon's Seal | S3? | G5 | Uncommon | Smilacina trifolia | |
Menispermum canadense | Moonseed | S3 | G5 | Uncommon | ||
Myriophyllum sibiricum | Northern Water-milfoil | S1S2 | G5 | Uncommon | Myriophyllum exalbescens | |
Nabalus albus | White Lettuce | SNR | G5 | Uncommon | Nabalus albus | |
Opuntia cespitosa | Cespitose Prickly-Pear | SNR | GNR | Taxonomic question | Opuntia caespitosa | |
Orthilia secunda | One-sided Pyrola/One-sided Wintergreen | SNR | G5 | Uncommon | Pyrola secunda; Orthilia secunda var. secunda | |
Panicum tuckermanii | Tuckerman's Panic-grass | SNR | G3G5 | Taxonomic question | Panicum philadelphicum var. tuckermanii | |
Parietaria pensylvanica | Rock-pellitory | S2S3 | G5 | Uncommon | ||
Paronychia fastigiata var. fastigiata | Hairy Forked Chickweed | SNR | G5T5 | Introduced? | ||
Paspalum setaceum var. psammophilum | Sand Bead-grass | S2S3 | 2 | G5T4? | Uncommon | |
Paspalum setaceum var. setaceum | Small Fruited Bead-grass or Slender Bead-grass | S3? | G5T5 | Uncommon | ||
Pellaea atropurpurea | Purple Cliff-brake | S3 | G5 | MESA-Delisted | ||
Phragmites australis ssp. americanus | Phragmites, North American Reed | S3 | G5T5 | Uncommon | Phragmites americanus | |
Pinus resinosa | Red Pine | S2S3 | G5 | Uncommon | ||
Piptochaetium avenaceum | Black Oatgrass | SNR | G5 | Uncommon | Stipa avenacea | |
Platanthera aquilonis | North Wind Bog Orchid | S3S4 | G5 | Uncommon | ||
Platanthera blephariglottis | White-fringed Orchid | SNR | G5 | Uncommon | Habenaria blephariglottis | |
Platanthera grandiflora | Large Purple-fringed Orchid | S4 | G5 | Decreasing | Platanthera grandifolia; Habenaria fimbriata; Habenaria grandiflora | |
Platanthera hookeri | Hooker's Orchid | S2? | G4 | Uncommon | Habenaria hookeri | |
Platanthera huronensis | Northern Green Orchid | S2? | G5T5? | Uncommon | Platanthera huronensis | |
Platanthera macrophylla | Large Round-leaved Orchid | S2? | G5T4 | Uncommon | Platanthera macrophylla; Habenaria macrophylla | |
Platanthera orbiculata | Round-leaved Orchis or Orchid | S1S2 | G5 | Uncommon | Habenaria orbiculata | |
Podophyllum peltatum | May-apple | SNR | 2 | G5 | Introduced? | |
Podostemum ceratophyllum | Threadfoot | S2 | G5 | MESA-Delisted | ||
Polygala nuttallii | Nuttall's Milkwort | S3 | G5 | MESA-Delisted | ||
Polygala verticillata | Whorled Milkwort | S2S3 | IND. | G5 | Uncommon | |
Polygala verticillata var. ambigua | Alternate Milkwort | SNR | 2 | G5T5? | Historic Rediscovered | Polygala ambigua |
Polygonum tenue | Rock Knotweed | S2S3 | G5 | Uncommon | ||
Populus balsamifera ssp. balsamifera | Balsam-poplar | S2S3 | G5T5 | Uncommon | Populus balsamifera; Populus balsamifera var. balsamifera; Populus tacamahaca | |
Potamogeton gemmiparus | Tiny Pondweed | S2? | IND. | G5T3 | Uncommon? | Potamogeton pusillus var. gemmiparus; Potamogeton gemmiparus; Potamogeton berchtoldii ssp. gemmiparus |
Potamogeton obtusifolius | Blunt-leaved Pondweed | S1? | G5 | Uncommon | ||
Pseudognaphalium macounii | Clammy Everlasting | S1S2 | G5 | Uncommon | Gnaphalium macounii | |
Pteridium aquilinum ssp. pseudocaudatum | Pine Barrens Braken | SNR | G5T5 | Uncommon | Pteridium aquilinum ssp. pseudocaudatum; Pteridium latiusculum var. pseudocaudatum | |
Quercus stellata | Post Oak | S3S4 | G5 | MESA-Delisted | ||
Ranunculus allegheniensis | Allegheny Buttercup | S2? | 2 | G4G5 | Uncommon | |
Ranunculus fascicularis | Early Buttercup | S2? | G5 | Uncommon | ||
Rhododendron periclymenoides | Pinxter-flower | S2? | G5 | Uncommon | Rhododendron nudiflorum var. nudiflorum; Rhododendron nudiflorum | |
Ribes americanum | Wild Black Currant | S3S4 | G5 | MESA-Delisted | ||
Ribes rotundifolium | Round-leaved Gooseberry | S1? | IND. | G5 | Uncommon | |
Ribes triste | Swamp Red Currant | S3 | G5 | MESA-Delisted | ||
Rosa blanda | Smooth Rose | S2S3 | G5 | Uncommon | ||
Rubus cuneifolius | Sand-blackberry | S1S2 | 2 | G5 | Uncommon | |
Rumex hastatulus | Dune-sorrel | SNR | G5 | Introduced? | ||
Sagina decumbens ssp. decumbens | Trailing Pearlwort | SNR | G5T5 | Introduced? | ||
Sagittaria rigida | Mud Arrowhead | S2? | G5 | Uncommon | ||
Salix candida | Hoary Willow | S3 | G5 | MESA-Delisted | ||
Salix pedicellaris | Bog Willow | S2? | G5 | Uncommon | ||
Salix serissima | Autumn Willow | S3 | G5 | MESA-Delisted | ||
Sanguisorba canadensis | Canada Burnet | SNR | G5 | Uncommon | Sanguisorba canadensis ssp. canadensis | |
Sanicula trifoliata | Trefoil Sanicle | S2S3 | G4 | Uncommon | ||
Schoenoplectus acutus var. acutus | Hard-stemmed Bulrush | S2S3 | G5T5 | Uncommon | Scirpus acutus | |
Schoenoplectus torreyi | Torrey's Bulrush | S2? | G5? | Uncommon | Scirpus torreyi | |
Scirpus pendulus | Pendulous Bulrush | S3 | G5 | MESA-Delisted | ||
Scirpus polyphyllus | Appalachian Bulrush | S2? | 2 | G5 | Uncommon | |
Scleria reticularis | Pondshore Nut-sedge | S3 | 1 | G4 | MESA-Delisted | Scleria reticularis var. reticularis |
Scutellaria parvula var. missouriensis | Small Skullcap | SNR | 2 | G4T4 | Introduced? | Scutellaria leonardii; Scutellaria parvula var. leonardii |
Sedum ternatum | Mountain-stonecrop | SNR | G5 | Introduced? | ||
Selaginella rupestris | Rock Spikemoss | S3S4 | G5 | MESA-Delisted | ||
Sesuvium maritimum | Annual Sea-purslane | SNR | 2 | G5 | Newly Discovered | |
Silene caroliniana ssp. pensylvanica | Wild Pink | S2S3 | G5T4T5 | Uncommon | Silene caroliniana var. pensylvanica | |
Solidago hispida | Hispid Goldenrod | S1 | G5 | Historic Rediscovered | ||
Solidago speciosa var. speciosa | Showy Goldenrod | S2S3 | G5T5? | Uncommon | Solidago speciosa ssp. speciosa var. speciosa | |
Sparganium androcladum | Shining Bur-reed | S3? | G4G5 | Uncommon | ||
Sparganium angustifolium | Narrow-leaved Bull-reed | S2S3 | G5 | Uncommon | ||
Sparganium fluctuans | Floating Bull-reed | S2S3 | G5 | Uncommon | ||
Spiranthes lucida | Shining or Wide-leaved Ladies'-tresses | S2? | G4 | Uncommon | ||
Spiranthes tuberosa | Little Ladies'-tresses | S3S4 | G5 | MESA-Delisted | ||
Sporobolus compositus var. compositus | Tall Dropseed | SNR | G5T5 | Introduced? | ||
Sporobolus cryptandrus | Sand Dropseed | S2? | G5 | Uncommon | ||
Stachys hyssopifolia | Hyssop Hedge-nettle | S3S4 | G4G5 | MESA-Delisted | ||
Stellaria borealis ssp. borealis | Northern Starwort | S2S3 | G5T5 | Uncommon | Stellaria calycantha sensu lato; Stellaria borealis var. borealis | |
Streptopus amplexifolius | Clasping-leaf Twisted-stalk | S3? | G5 | MESA-Delisted | ||
Suaeda maritima ssp. richii | Rich's Sea-blite | S2S3 | IND. | G5T3 | MESA-Delisted | Suaeda richii |
Symphyotrichum praealtum | Willow Aster | S1 | 2 | G5 | Historic Rediscovered | Aster praealtus |
Symphyotrichum prenanthoides | Crooked-stem Aster | S2 | 2 | G4G5 | MESA-Delisted | Aster prenanthoides |
Tephrosia virginiana | Goat's Rue | SNR | G5 | Uncommon | ||
Utricularia minor | Lesser Bladderwort | S2S3 | G5 | Uncommon | ||
Uvularia grandiflora | Large-flowered Bellwort | S3 | G5 | MESA-Delisted | ||
Veronica serpyllifolia ssp. humifusa | Northern Thyme-leaf Speedwell | SNR | G5T5? | Introduced? | Veronica serpyllifolia var. humifusa | |
Viola renifolia | Kidney-leaf Violet | S1S2 | G5 | Uncommon | ||
Viola rostrata | Long-spurred Violet | S2S3 | G5 | Uncommon | ||
Viola selkirkii | Great-spurred Violet | S1S2 | G5 | Uncommon | ||
Viola subsinuata | Early Blue Violet | S1S2 | IND. | G3G5 | Uncommon | |
Wolffia borealis | Northern Water-meal | SNR | G5 | Uncommon | ||
Wolffiella gladiata | Sickle Water-meal | SNR | 2 | G5 | Uncommon | Wolffiella floridana |
Xyris montana | Northern Yellow-eyed Grass | S2? | G5 | Uncommon | ||
Xyris smalliana | Quagmire Yellow-eyed grass | S4 | G5 | Uncommon? | Xyris congdonii | |
Zizania palustris var. palustris | Slender Wild Rice | S1S2 | G5T4T5 | Uncommon | Zizania aquatica var. angustifolia |
Additional Resources
Contact for Plant Watch List
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North/Central/Western Massachusetts
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