Type Common Name Scientific Name
P Alpine Cliff Fern Woodsia alpina
P Alpine Goldenrod Solidago leiocarpa
P Alpine Sweetgrass Anthoxanthum monticola ssp. monticola
P Alpine Willow-herb Epilobium hornemannii ssp. hornemannii
P Alternate-flowered Water Milfoil Myriophyllum alterniflorum
P Ambiguous Sedge Carex amphibola
P American Ipecac Euphorbia ipecacuanhae
P American Strawberry Bush Euonymus americanus
P American Waterwort Elatine americana
P Angled Spike Rush Eleocharis quadrangulata
P Annual Saltmarsh Aster Symphyotrichum subulatum var. subulatum
P Appalachian Bristle Fern Crepidomanes intricatum
P Appalachian Firmoss Huperzia appressa
P Appalachian Sandwort Mononeuria glabra
P Appalachian Shoestring Fern Vittaria appalachiana
P Arctic Rush Oreojuncus trifidus
P Atlantic White Cedar Chamaecyparis thyoides
P Auricled Twayblade Neottia auriculata
P Back's Sedge Carex backii
P Balsam Willow Salix pyrifolia
P Barratt's Sedge Carex barrattii
P Basilbalm Monarda clinopodia
P Basil Mountain Mint Pycnanthemum clinopodioides
P Bayard's Adder's Mouth Malaxis bayardii
P Beakgrass Diarrhena obovata
P Bearberry Willow Salix uva-ursi
P Bent Sedge Carex styloflexa
P Bigelow's Sedge Carex bigelowii
P Bigleaf Yellow Avens Geum macrophyllum var. macrophyllum
P Big Shellbark Hickory Carya laciniosa
P Bird's Eye Primrose Primula mistassinica
P Black Crowberry Empetrum nigrum ssp. hermaphroditum
P Black-edge Sedge Carex nigromarginata
P Black Sedge Carex nigra
P Blue Wild Rye Elymus glaucus ssp. glaucus
P Blunt-lobe Grape Fern Botrychium oneidense
P Blunt Mountain Mint Pycnanthemum muticum
P Boott's Rattlesnake Root Nabalus boottii
P Bradley's Spleenwort Asplenium bradleyi
P Broad-lipped Twayblade Neottia convallarioides
P Broom Crowberry Corema conradii
P Brown Bog Sedge Carex buxbaumii
P Bushy Cinquefoil Potentilla supina ssp. paradoxa
P Bushy Rockrose Crocanthemum dumosum
P Bushy St. John's Wort Hypericum densiflorum
P Butterwort Pinguicula vulgaris
P Buttonbush Dodder Cuscuta cephalanthi
P Button Sedge Carex bullata
P Calypso Calypso bulbosa var. americana
P Canadian Single-spike Sedge Carex scirpoidea ssp. scirpoidea
P Carey's Sedge Carex careyana
P Carey's Smartweed Persicaria careyi
P Carolina Clubmoss Pseudolycopodiella caroliniana
P Carolina Redroot Lachnanthes caroliniana
P Carolina Sedge Carex caroliniana
P Carolina Whitlow Grass Tomostima reptans
P Cat-tail Sedge Carex typhina
P Champlain Beachgrass Ammophila breviligulata ssp. champlainensis
P Climbing Fern Lygodium palmatum
P Clinton's Club Sedge Trichophorum clintonii
P Cloud Sedge Carex haydenii
P Clustered Bluets Oldenlandia uniflora
P Clustered Sedge Carex cumulata
P Coastal Carrion Flower Smilax pseudochina
P Coastal Fireweed Erechtites hieraciifolius var. megalocarpus
P Coastal Goldenrod Solidago latissimifolia
P Coastal Silverweed Potentilla anserina ssp. pacifica
P Coast creeping moss Conardia compacta
P Coast Flatsedge Cyperus polystachyos var. texensis
P Coast Violet Viola brittoniana
P Collins' Sedge Carex collinsii
P Comb-leaved Mermaid Weed Proserpinaca pectinata
P Common Moonwort Botrychium lunaria
P Common Roseroot Rhodiola rosea
P Cooper's Milkvetch Astragalus neglectus
P Coppery St. John's Wort Hypericum denticulatum
P Cork Elm Ulmus thomasii
P Cranefly Orchid Tipularia discolor
P Crawe's Sedge Carex crawei
P Creeping Juniper Juniperus horizontalis
P Creeping Sedge Carex chordorrhiza
P Creeping Spike Rush Eleocharis ambigens
P Creeping St. John's Wort Hypericum adpressum
P Culver's Root Veronicastrum virginicum
P Curlygrass Fern Schizaea pusilla
P Cut-leaved Evening Primrose Oenothera laciniata
P Cypress-knee Sedge Carex decomposita
P Dark-green sedge Carex venusta
P Davis' Sedge Carex davisii
P Deer's Hair Sedge Trichophorum cespitosum ssp. cespitosum
P Delmarva Beggar-ticks Bidens bidentoides
P Diapensia Diapensia lapponica
P Douglas' Knotweed Polygonum douglasii
P Downy Lettuce Lactuca hirsuta
P Downy Wood Mint Blephilia ciliata
P Dragon's Mouth Orchid Arethusa bulbosa
P Drummond's Rock Cress Boechera stricta
P Dune Sandspur Cenchrus tribuloides
P Dwarf Bilberry Vaccinium cespitosum
P Dwarf Bulrush Cyperus subsquarrosus
P Dwarf Cherry Prunus pumila var. depressa
P Dwarf Glasswort Salicornia bigelovii
P Dwarf Hawthorn Crataegus uniflora
P Dwarf White Birch Betula minor
P Dwarf Willow Salix herbacea
P Early Frostweed Crocanthemum propinquum
P Eastern Grasswort Lilaeopsis chinensis
P Eastern Silvery Aster Symphyotrichum concolor var. concolor
P Elk Sedge Carex garberi
P Emory's Sedge Carex emoryi
P Engelmann's Spike Rush Eleocharis engelmannii
P Estuary Beggar-ticks Bidens hyperborea var. hyperborea
P Fairywand Chamaelirium luteum
P False Hop Sedge Carex lupuliformis
P False Lettuce Lactuca floridana
P False Toadflax Geocaulon lividum
P Farwell's Water Milfoil Myriophyllum farwellii
P Featherfoil Hottonia inflata
P Fernald's Blue Grass Poa laxa ssp. fernaldiana
P Fernald's Sedge Carex merritt-fernaldii
P Few-flowered Nutrush Scleria pauciflora var. caroliniana
P Fibrous Bladderwort Utricularia striata
P Field Beadgrass Paspalum laeve
P Fir Clubmoss Huperzia selago
P Five-angled Dodder Cuscuta pentagona
P Flax-leaf Whitetop Sericocarpus linifolius
P Forest Blue Grass Poa sylvestris
P Four-flowered Loosestrife Lysimachia quadriflora
P Fragrant Cliff Fern Dryopteris fragrans
P Frank's Sedge Carex frankii
P Fringed Boneset Eupatorium torreyanum
P Fringed Fabronia Fabronia ciliaris
P Georgia Bulrush Scirpus georgianus
P Glaucous Sedge Carex glaucodea
P Globe-fruited Ludwigia Ludwigia sphaerocarpa
P Globose Flatsedge Cyperus echinatus
P Glomerate Sedge Carex aggregata
P Golden Club Orontium aquaticum
P Golden Corydalis Corydalis aurea
P Golden Dock Rumex fueginus
P Goldenseal Hydrastis canadensis
P Great Lakes Sand Cherry Prunus pumila var. pumila
P Great Plains Flatsedge Cyperus lupulinus ssp. lupulinus
P Green Gentian Frasera caroliniensis
P Green Milkweed Asclepias viridiflora
P Green Parrot's Feather Myriophyllum pinnatum
P Green Rock Cress Borodinia missouriensis
P Hair-like Sedge Carex capillaris
P Handsome Sedge Carex formosa
P Harbinger-of-spring Erigenia bulbosa
P Hart's-tongue Fern Asplenium scolopendrium var. americanum
P Heart-leaved Plantain Plantago cordata
P Heart Sorrel Rumex hastatulus
P Hill's Pondweed Potamogeton hillii
P Hoary Puccoon Lithospermum canescens
P Hooker's Orchid Platanthera hookeri
P Horned Beak Sedge Rhynchospora inundata
P Houghton's Sedge Carex houghtoniana
P Hudson River Water Nymph Najas muenscheri
P Hyssop Skullcap Scutellaria integrifolia
P Jacob's Ladder Polemonium vanbruntiae
P James' Sedge Carex jamesii
P Knotted Spike Rush Eleocharis equisetoides
P Lake Cress Rorippa aquatica
P Lapland Rosebay Rhododendron lapponicum var. lapponicum
P Large Calyx Goosefoot Chenopodium berlandieri var. macrocalycium
P Large Grass-leaved Rush Juncus biflorus
P Large Twayblade Liparis liliifolia
P Leedy's Roseroot Rhodiola integrifolia ssp. leedyi
P Leiberg's Panic Grass Dichanthelium leibergii
P Lesser Fringed Gentian Gentianopsis virgata
P Lined Sedge Carex striatula
P Little-leaf Tick Trefoil Desmodium ciliare
P Livid Sedge Carex livida
P Long-beaked Beak Sedge Rhynchospora scirpoides
P Long's Bittercress Cardamine longii
P Long-tubercled Spike Rush Eleocharis tuberculosa
P Lowland Fragile Fern Cystopteris protrusa
P Lowland Yellow Loosestrife Lysimachia hybrida
P Low St. John's Wort Hypericum stragulum
P Many-headed Sedge Carex sychnocephala
P Mare's Tail Hippuris vulgaris
P Marsh Fimbry Fimbristylis castanea
P Marsh Horsetail Equisetum palustre
P Marsh Straw Sedge Carex hormathodes
P Marsh Valerian Valeriana uliginosa
P Meadow Horsetail Equisetum pratense
P Mead's Sedge Carex meadii
P Mexican Seaside Goldenrod Solidago mexicana
P Midland Sedge Carex mesochorea
P Mingan Moonwort Botrychium minganense
P Minute Duckweed Lemna perpusilla
P Mitchell's Sedge Carex mitchelliana
P Mountain Death Camas Anticlea elegans var. glauca
P Mountain Spleenwort Asplenium montanum
P Mountain Watercress Cardamine rotundifolia
P Musk Root Adoxa moschatellina
P Nantucket Juneberry Amelanchier nantucketensis
P Narrow-leaf Sea Blite Suaeda linearis
P New England Violet Viola novae-angliae
P Nodding Pogonia Triphora trianthophora
P Nodding Wild Onion Allium cernuum var. cernuum
P Northern Bentgrass Agrostis mertensii
P Northern Blazing Star Liatris scariosa var. novae-angliae
P Northern Bog Aster Symphyotrichum boreale
P Northern Bog Sedge Carex gynocrates
P Northern Bog Violet Viola nephrophylla
P Northern Clustered Sedge Carex arcta
P Northern Dwarf Huckleberry Gaylussacia bigeloviana
P Northern Gama Grass Tripsacum dactyloides
P Northern Lowbush Blueberry Vaccinium boreale
P Northern Monkshood Aconitum noveboracense
P Northern Reed Grass Calamagrostis stricta
P Northern Running-pine Diphasiastrum complanatum
P Northern Tansy-mustard Descurainia pinnata ssp. brachycarpa
P Northern Wild Comfrey Andersonglossum boreale
P Oakes' Evening Primrose Oenothera oakesiana
P Ogden's Pondweed Potamogeton ogdenii
P Ohio Goldenrod Solidago ohioensis
P Orange Crested Orchid Platanthera cristata
P Orange Fringed Orchid Platanthera ciliaris
P Orange Milkwort Polygala lutea
P Ovate Spike Rush Eleocharis ovata
P Pale Duckweed Lemna valdiviana
P Peanut Grass Amphicarpum amphicarpon
P Persimmon Diospyros virginiana
P Pine Barren Bellwort Uvularia puberula
P Pinedrops Pterospora andromedea
P Pink Wintergreen Pyrola asarifolia ssp. asarifolia
P Pod Grass Scheuchzeria palustris
P Porter's Reed Grass Calamagrostis porteri ssp. porteri
P Powdery Carrion Flower Smilax pulverulenta
P Prairie Dunewort Botrychium campestre
P Primrose-leaf Violet Viola primulifolia
P Purple Cress Cardamine douglassii
P Purple Crowberry Empetrum atropurpureum
P Purple Milkweed Asclepias purpurascens
P Purple Rock Cress Boechera grahamii
P Puttyroot Aplectrum hyemale
P Pyxies Pyxidanthera barbulata
P Quill-leaf Arrowhead Sagittaria teres
P Ram's-head Lady's Slipper Cypripedium arietinum
P Rand's Goldenrod Solidago randii
P Rattlebox Crotalaria sagittalis
P Red Pigweed Oxybasis rubra var. rubra
P Red Pondweed Potamogeton alpinus
P Reflexed Sedge Carex retroflexa
P Retrorse Flatsedge Cyperus retrorsus var. retrorsus
P Reznicek's Sedge Carex reznicekii
P Rhodora Rhododendron canadense
P Richardson's Sedge Carex richardsonii
P Riverbank Goldenrod Solidago racemosa
P Riverbank Quillwort Isoetes riparia
P Riverweed Podostemum ceratophyllum
P Rock Whitlow Grass Draba arabisans
P Roland's Sea Blite Suaeda rolandii
P Rose Coreopsis Coreopsis rosea
P Rose Pink Sabatia angularis
P Rough Avens Geum virginianum
P Rough Hedge Nettle Stachys hyssopifolia var. hyssopifolia
P Rough-leaf Dogwood Cornus drummondii
P Rough Pennyroyal Hedeoma hispida
P Rugulose Grape Fern Botrychium rugulosum
P Rush Bladderwort Utricularia juncea
P Rusty Beard-moss Didymodon ferrugineus
P Saltmarsh Bulrush Bolboschoenus novae-angliae
P Saltmarsh Loosestrife Lythrum lineare
P Salt-marsh Spike Rush Eleocharis uniglumis
P Salt-meadow Grass Diplachne fusca ssp. fascicularis
P Sand Dune Willow Salix cordata
P Sandplain Agalinis Agalinis decemloba
P Sandplain Wild Flax Linum intercursum
P Sartwell's Sedge Carex sartwellii
P Scarlet Indian-paintbrush Castilleja coccinea
P Schweinitz's Flat Sedge Cyperus schweinitzii
P Schweinitz's Sedge Carex schweinitzii
P Scotch Lovage Ligusticum scoticum ssp. scoticum
P Screw-stem Bartonia paniculata ssp. paniculata
P Seabeach Amaranth Amaranthus pumilus
P Seabeach Knotweed Polygonum glaucum
P Sea Pink Sabatia stellaris
P Sea Purslane Sesuvium maritimum
P Seaside Agalinis Agalinis maritima var. maritima
P Seaside Bulrush Bolboschoenus maritimus ssp. paludosus
P Seaside Orach Atriplex glabriuscula
P Seaside Plantain Plantago maritima var. juncoides
P Seaside Toad Rush Juncus ranarius
P Sedge Rush Juncus scirpoides
P Serrate Round-leaf Boneset Eupatorium pubescens
P Sharp-tipped Blue-eyed Grass Sisyrinchium mucronatum
P Sheathed Sedge Carex vaginata
P Sheep Fescue Festuca saximontana var. saximontana
P Shining Bedstraw Galium concinnum
P Short-beaked Beak Sedge Rhynchospora nitens
P Short-fruited Rush Juncus brachycarpus
P Shortleaf Pine Pinus echinata
P Short's Sedge Carex shortiana
P Showy Aster Eurybia spectabilis
P Shrubby St. John's Wort Hypericum prolificum
P Shumard Oak Quercus shumardii var. shumardii
P Side-oats Grama Bouteloua curtipendula var. curtipendula
P Sieve-toothed dry rock moss Coscinodon cribrosus
P Sky-blue Aster Symphyotrichum oolentangiense
P Slender Blazing Star Liatris cylindracea
P Slender Blue Flag Iris prismatica
P Slender Bulrush Schoenoplectus heterochaetus
P Slender Crab Grass Digitaria filiformis
P Slender Marsh Blue Grass Poa paludigena
P Slender Marsh Pink Sabatia campanulata
P Slender Nut Sedge Scleria minor
P Slender Pinweed Lechea tenuifolia
P Slender Pondweed Stuckenia filiformis ssp. alpina
P Slender Spike Grass Chasmanthium laxum
P Slender Spike Rush Eleocharis tenuis var. pseudoptera
P Small Bur-reed Sparganium natans
P Small Floating Bladderwort Utricularia radiata
P Small-flowered Crowfoot Ranunculus micranthus
P Small's Knotweed Polygonum buxiforme
P Small White Snakeroot Ageratina aromatica var. aromatica
P Smartweed Dodder Cuscuta polygonorum
P Smooth Beggar-ticks Bidens laevis
P Smooth Cliff Brake Pellaea glabella ssp. glabella
P Smooth Cliff Fern Woodsia glabella
P Smooth Whitlow Grass Draba glabella
P Soapwort Gentian Gentiana saponaria
P Soft Fox Sedge Carex conjuncta
P Southern Arrowwood Viburnum dentatum var. venosum
P Southern Blue Flag Iris virginica var. shrevei
P Southern Bluets Houstonia purpurea var. calycosa
P Southern Dodder Cuscuta obtusiflora var. glandulosa
P Southern Snailseed Pondweed Potamogeton diversifolius
P Southern Twayblade Neottia bifolia
P Southern Wild Raisin Viburnum nudum var. nudum
P Southern Yellow Flax Linum medium var. texanum
P Sparse-flowered Sedge Carex tenuiflora
P Spongy Arrowhead Sagittaria montevidensis ssp. spongiosa
P Spotted Pondweed Potamogeton pulcher
P Spreading Chervil Chaerophyllum procumbens
P Spreading Globeflower Trollius laxus
P Spreading Rush Juncus subcaudatus
P Spring Ladies' Tresses Spiranthes vernalis
P Spurred Gentian Halenia deflexa
P Squashberry Viburnum edule
P Stalked Bugleweed Lycopus rubellus
P Stargrass Aletris farinosa
P Stiff Flat-topped Goldenrod Solidago rigida var. rigida
P Stiff Tick Trefoil Desmodium obtusum
P Straight-leaved Pondweed Potamogeton strictifolius
P Straw Sedge Carex straminea
P Striped Coralroot Corallorhiza striata var. striata
P Swamp Birch Betula pumila
P Swamp Buttercup Ranunculus septentrionalis
P Swamp Cottonwood Populus heterophylla
P Swamp Lousewort Pedicularis lanceolata
P Swamp Oats Sphenopholis pensylvanica
P Swamp Smartweed Persicaria setacea
P Swamp Sunflower Helianthus angustifolius
P Sweetbay Magnolia Magnolia virginiana
P Sweet Coltsfoot Petasites frigidus var. palmatus
P Sweet-scented Indian Plantain Senecio suaveolens
P Terrestrial Starwort Callitriche terrestris
P Thicket Sedge Carex abscondita
P Thickleaf Orach Atriplex dioica
P Three-ribbed Spike Rush Eleocharis tricostata
P Tidal Spike Rush Eleocharis aestuum
P Tinged Sedge Carex tincta
P Tooth Cup Rotala ramosior
P Torrey's Mountain Mint Pycnanthemum torreyi
P Trailing Pearlwort Sagina decumbens ssp. decumbens
P Trinerved White Boneset Eupatorium subvenosum
P Troublesome Sedge Carex molesta
P Tundra Dwarf Birch Betula glandulosa
P Twinleaf Jeffersonia diphylla
P Two-ranked moss Pseudotaxiphyllum distichaceum
P Variable Sedge Carex polymorpha
P Veiny Meadow-rue Thalictrum venulosum var. confine
P Velvet Panic Grass Dichanthelium scoparium
P Velvety Bush Clover Lespedeza stuevei
P Violet Wood Sorrel Oxalis violacea
P Virginia False Gromwell Lithospermum virginianum
P Virginia Pine Pinus virginiana
P Virginia Snakeroot Endodeca serpentaria
P Wafer-ash Ptelea trifoliata ssp. trifoliata
P Water Pigmyweed Crassula aquatica
P Weak Rush Juncus debilis
P Wheat Sedge Carex atherodes
P Whip Nut Sedge Scleria triglomerata
P White-bracted Boneset Eupatorium leucolepis var. leucolepis
P White Milkweed Asclepias variegata
P White Mountain Saxifrage Saxifraga paniculata ssp. paniculata
P Whorled Mountain Mint Pycnanthemum verticillatum var. verticillatum
P Whorled-pennywort Hydrocotyle verticillata
P Wiegand's Sedge Carex wiegandii
P Wild Comfrey Andersonglossum virginianum
P Wild Hydrangea Hydrangea arborescens
P Wild Pink Silene caroliniana ssp. pensylvanica
P Wild Potato-vine Ipomoea pandurata
P Wild Sweet William Phlox maculata ssp. maculata
P Willow Oak Quercus phellos
P Winter Grape Vitis vulpina
P Wiry Panic Grass Panicum flexile
P Woodland Agrimony Agrimonia rostellata
P Woodland Cudweed Omalotheca sylvatica
P Wood Reed Grass Calamagrostis perplexa
P Woolly Lip Fern Myriopteris lanosa
P Wright's Panic Grass Dichanthelium wrightianum
P Yellow Flatsedge Cyperus flavescens
P Yellow Giant-hyssop Agastache nepetoides
P Yellow Mountain Saxifrage Saxifraga aizoides
P Yellow Wild Flax Linum sulcatum
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