| Endangered Species
|
Common Name
|
Order
|
Family
|
Subfamily
|
Tribe
|
Subtribe
|
#
|
| Acalypha virginica
|
Virginia three-seed mercury
|
Euphorbiales
|
Euphorbiaceae
|
Acalyphoideae
|
Acalypheae
|
|
1
|
| Aconitum noveboracense
|
Northern monkshood
|
Ranunculales
|
Ranunculaceae
|
Ranunculoideae
|
Aconiteae
|
|
1
|
| Actaea pachypoda
|
White baneberry
|
Ranunculales
|
Ranunculaceae
|
Ranunculoideae
|
Actaeeae
|
|
4
|
| Actaea rubra
|
Red baneberry
|
Ranunculales
|
Ranunculaceae
|
Ranunculoideae
|
Actaeeae
|
|
4
|
| Adiantum pedatum
|
Maidenhair fern
|
Polypodiales
|
Pteridaceae
|
Vittarioideae
|
|
|
4
|
| Adoxa moschatellina
|
Musk root
|
Dipsacales
|
Adoxaceae
|
Adoxoideae
|
|
|
1
|
| Agalinis acuta
|
Sandplain Gerardia
|
Lamiales
|
Orobanchaceae
|
Rhinanthoideae
|
Gerardieae
|
|
1
|
| Agalinis fasciculata
|
Fascicled False Foxglove
|
Lamiales
|
Orobanchaceae
|
Rhinanthoideae
|
Gerardieae
|
|
3
|
Agalinis maritima
var. maritima
|
Seaside Gerardia
|
Lamiales
|
Orobanchaceae
|
Rhinanthoideae
|
Gerardieae
|
|
2
|
Agalinis paupercula
var. borealis
|
Northern False Foxglove
|
Lamiales
|
Orobanchaceae
|
Rhinanthoideae
|
Gerardieae
|
|
3
|
| Agastache nepetoides
|
Yellow Giant-hyssop
|
Lamiales
|
Lamiaceae
|
Nepetoideae
|
Mentheae
|
Neptinae
|
2
|
Ageratina aromatica
var. aromatica
|
Small White Snakeroot
|
Asterales
|
Asteraceae
|
Asteroideae
|
Eupatorieae
|
Oxylobinae
|
1
|
| Agrimonia parviflora
|
Swamp Agrimony
|
Rosales
|
Rosaceae
|
Rosoideae
|
Agrimonieae
|
Agrimoniineae
|
3
|
| Agrimonia rostellata
|
Woodland Agrimony
|
Rosales
|
Rosaceae
|
Rosoideae
|
Agrimonieae
|
Agrimoniineae
|
2
|
| Agrostis mertensii
|
Northern Bentgrass
|
Poales
|
Poaceae
|
Pooideae
|
Poeae
|
Agrostidinae
|
2
|
| Aletris farinosa
|
Stargrass
|
Nartheciales
|
Nartheciaceae
|
|
|
|
2
|
| Alisma gramineum
|
Water-plantain
|
Alismatales
|
Alismataceae
|
|
|
|
2
|
Allium cernuum
var. cernuum
|
Nodding Wild Onion
|
Iridales
|
Alliaceae
|
Allioideae
|
|
|
2
|
Allium tricoccum
var. burdickii
|
Burdick's Wild Leek
|
Iridales
|
Alliaceae
|
Allioideae
|
|
|
1
|
| Amaranthus pumilus
|
Seabeach Amaranth
|
Caryophyllales
|
Amaranthaceae
|
Amaranthoideae
|
|
|
2
|
| Amelanchier nantucketensis
|
Nantucket Juneberry
|
Rosales
|
Rosaceae
|
Maloideae
|
Maleae
|
|
1
|
Ammophila breviligulata
ssp. champlainensis
|
Champlain Beachgrass
|
Poales
|
Poaceae
|
Pooideae
|
Poeae
|
Agrostidinae
|
1
|
| Amphicarpum purshii
|
Peanut Grass
|
Poales
|
Poaceae
|
Panicoideae
|
Paniceae
|
Paspalinae
|
1
|
| Angelica lucida
|
Seacoast Angelica
|
Apiales
|
Apiaceae
|
Apioideae
|
Selineae
|
|
2
|
| Angelica venenosa
|
Hairy Angelica
|
Apiales
|
Apiaceae
|
Apioideae
|
Selineae
|
|
3
|
Anthoxanthum monticola
ssp. monticola
|
Alpine Sweetgrass
|
Poales
|
Poaceae
|
Pooideae
|
Poeae
|
Phalaridinae
|
1
|
Anticlea elegans
ssp. glaucus
|
Mountain Death Camas
|
Liliales
|
Melanthiaceae
|
|
Melanthieae
|
|
2
|
| Aplectrum hyemale
|
Puttyroot
|
Orchidales
|
Orchidaceae
|
Epidendroideae
|
Maxillarieae
|
|
1
|
| Arethusa bulbosa
|
Dragon's Mouth Orchid
|
Orchidales
|
Orchidaceae
|
Epidendroideae
|
Arethuseae
|
|
2
|
Argentina egedii
ssp. egedii
|
Coastal Silverweed
|
Rosales
|
Rosaceae
|
Rosoideae
|
Potentilleae
|
Potentillineae
|
2
|
| Arisaema dracontium
|
Green Dragon
|
Alismatales
|
Araceae
|
Aroideae
|
Arisaemateae
|
|
4
|
Arnica lanceolata
ssp. lanceolata
|
Lanceleaf Arnica
|
Asterales
|
Asteraceae
|
Asteroideae
|
Madieae
|
Arnicinae
|
1
|
| Arnoglossum atriplicifolium
|
Pale Indian-plantain
|
Asterales
|
Asteraceae
|
Asteroideae
|
Senecioneae
|
Tussilagininae
|
1
|
| Asclepias purpurascens
|
Purple Milkweed
|
Gentianales
|
Apocynaceae
|
Asclepiadoideae
|
Asclepiadeae
|
Asclepiadinae
|
2
|
Asclepias tuberosa
ssp. interior
|
Butterfly-weed
|
Gentianales
|
Apocynaceae
|
Asclepiadoideae
|
Asclepiadeae
|
Asclepiadinae
|
4
|
| Asclepias variegata
|
White Milkweed
|
Gentianales
|
Apocynaceae
|
Asclepiadoideae
|
Asclepiadeae
|
Asclepiadinae
|
1
|
| Asclepias verticillata
|
Whorled Milkweed
|
Gentianales
|
Apocynaceae
|
Asclepiadoideae
|
Asclepiadeae
|
Asclepiadinae
|
3
|
| Asclepias viridiflora
|
Green Milkweed
|
Gentianales
|
Apocynaceae
|
Asclepiadoideae
|
Asclepiadeae
|
Asclepiadinae
|
2
|
| Asimina triloba
|
Pawpaw
|
Magnoliales
|
Annonaceae
|
Annonoideae
|
Uvarieae
|
|
2
|
| Asplenium bradleyi
|
Bradley's Spleenwort
|
Polypodiales
|
Aspleniaceae
|
|
|
|
1
|
| Asplenium montanum
|
Mountain Spleenwort
|
Polypodiales
|
Aspleniaceae
|
|
|
|
2
|
Asplenium platyneuron
var. platyneuron
|
Ebony Spleenwort
|
Polypodiales
|
Aspleniaceae
|
|
|
|
4
|
| Asplenium rhizophyllum
|
Walking Fern
|
Polypodiales
|
Aspleniaceae
|
|
|
|
4
|
| Asplenium ruta-muraria
|
Wall-rue Spleenwort
|
Polypodiales
|
Aspleniaceae
|
|
|
|
4
|
Asplenium scolopendrium
var. americanum
|
Hart's-tongue Fern
|
Polypodiales
|
Aspleniaceae
|
|
|
|
2
|
Asplenium trichomanes
ssp. quadrivalens
|
Maidenhair Spleenwort
|
Polypodiales
|
Aspleniaceae
|
|
|
|
4
|
Asplenium trichomanes
ssp. trichomanes
|
Maidenhair Spleenwort
|
Polypodiales
|
Aspleniaceae
|
|
|
|
4
|
Asplenium viride
~ A. trichomanes-ramosum
|
Green Spleenwort
|
Polypodiales
|
Aspleniaceae
|
|
|
|
1
|
| Astragalus neglectus
|
Cooper's Milkvetch
|
Fabales
|
Fabaceae
|
Faboideae
|
Galegeae
|
|
1
|
Athyrium filix-femina
ssp. angustum
|
Lady Fern
|
Polypodiales
|
Athyriaceae
|
|
|
|
4
|
Athyrium filix-femina
ssp. asplenioides
|
Lady Fern
|
Polypodiales
|
Athyriaceae
|
|
|
|
4
|
| Atriplex dioica
|
Thickleaf Orach
|
Caryophyllales
|
Chenopodiaceae
|
Chenopodioideae
|
Chenopodieae
|
|
1
|
| Atriplex glabriuscula
|
Seaside Orach
|
Caryophyllales
|
Chenopodiaceae
|
Chenopodioideae
|
Chenopodieae
|
|
1
|
| Azolla caroliniana
|
Mosquito-fern
|
Salviniales
|
Salviniaceae
|
|
|
|
4
|
Bartonia paniculata
ssp. paniculata
|
Screw-stem
|
Gentianales
|
Gentianaceae
|
|
Gentianeae
|
|
1
|
| Betula glandulosa
|
Tundra Dwarf Birch
|
Juglandales
|
Betulaceae
|
Betuloideae
|
|
|
1
|
| Betula minor
|
Dwarf White Birch
|
Juglandales
|
Betulaceae
|
Betuloideae
|
|
|
1
|
| Betula nigra
|
River Birch
|
Juglandales
|
Betulaceae
|
Betuloideae
|
|
|
3
|
| Betula pumila
|
Swamp Birch
|
Juglandales
|
Betulaceae
|
Betuloideae
|
|
|
2
|
| Bidens bidentoides
|
Delmarva Beggar-ticks
|
Asterales
|
Asteraceae
|
Asteroideae
|
Coreopsideae
|
Coreopsidinae
|
3
|
Bidens hyperborea
var. hyperborea
|
Estuary Beggar-ticks
|
Asterales
|
Asteraceae
|
Asteroideae
|
Coreopsideae
|
Coreopsidinae
|
1
|
| Bidens laevis
|
Smooth Bur-marigold
|
Asterales
|
Asteraceae
|
Asteroideae
|
Coreopsideae
|
Coreopsidinae
|
2
|
| Blephilia ciliata
|
Downy Wood-mint
|
Lamiales
|
Lamiaceae
|
Nepetoideae
|
Mentheae
|
Menthinae
|
1
|
| Boechera dentata
|
Toothed Rock-cress
|
Capparales
|
Brassicaceae
|
|
Boechereae
|
|
2
|
| Boechera grahamii
|
Purple Rock-cress
|
Capparales
|
Brassicaceae
|
|
Boechereae
|
|
2
|
| Boechera missouriensis
|
Green Rock-cress
|
Capparales
|
Brassicaceae
|
|
Boechereae
|
|
2
|
| Boechera stricta
|
Drummond's Rock-cress
|
Capparales
|
Brassicaceae
|
|
Boechereae
|
|
2
|
Bolboschoenus maritimus
ssp. paludosus
|
Seaside Bulrush
|
Juncales
|
Cyperaceae
|
Cyperoideae
|
Fuireneae
|
|
2
|
| Bolboschoenus novae-angliae
|
Saltmarsh Bulrush
|
Juncales
|
Cyperaceae
|
Cyperoideae
|
Fuireneae
|
|
1
|
| Botrychium campestre
|
Prairie Dunewort
|
Ophioglossales
|
Ophioglossaceae
|
|
|
|
1
|
| Botrychium dissectum
|
Cut-leaf Grape Fern
|
Ophioglossales
|
Ophioglossaceae
|
|
|
|
4
|
Botrychium lanceolatum
ssp. angustisegmentum
|
Lance-leaf Grape Fern
|
Ophioglossales
|
Ophioglossaceae
|
|
|
|
4
|
| Botrychium lunaria
|
Common Moonwort
|
Ophioglossales
|
Ophioglossaceae
|
|
|
|
1
|
| Botrychium matricariifolium
|
Matricary Grape Fern
|
Ophioglossales
|
Ophioglossaceae
|
|
|
|
4
|
| Botrychium minganense
|
Mingan Moonwort
|
Ophioglossales
|
Ophioglossaceae
|
|
|
|
1
|
| Botrychium multifidum
|
Leathery Grape Fern
|
Ophioglossales
|
Ophioglossaceae
|
|
|
|
4
|
| Botrychium oneidense
|
Blunt-lobe Grape Fern
|
Ophioglossales
|
Ophioglossaceae
|
|
|
|
2
|
| Botrychium rugulosum
|
Rugulose grape-fern
|
Ophioglossales
|
Ophioglossaceae
|
|
|
|
1
|
| Botrychium simplex
|
Least Moonwort
|
Ophioglossales
|
Ophioglossaceae
|
|
|
|
4
|
| Botrychium virginianum
|
Rattlesnake Fern
|
Ophioglossales
|
Ophioglossaceae
|
|
|
|
4
|
Bouteloua curtipendula
var. curtipendula
|
Side-oats Grama
|
Poales
|
Poaceae
|
Chloridoideae
|
Cynodonteae
|
Boutelouinae
|
1
|
| Bromus nottowayanus
|
Nottoway Brome Grass
|
Poales
|
Poaceae
|
Pooideae
|
Hordeeae
|
Bromineae
|
1
|
| Buchnera americana
|
Blue-hearts
|
Lamiales
|
Orobanchaceae
|
Rhinanthoideae
|
Buchnereae
|
|
1
|
| Calamagrostis perplexa
|
Wood Reedgrass
|
Poales
|
Poaceae
|
Pooideae
|
Poeae
|
Agrostidinae
|
1
|
| Calamagrostis pickeringii
|
Pickering's Reedgrass
|
Poales
|
Poaceae
|
Pooideae
|
Poeae
|
Agrostidinae
|
3
|
Calamagrostis porteri
ssp. porteri
|
Porter's Reedgrass
|
Poales
|
Poaceae
|
Pooideae
|
Poeae
|
Agrostidinae
|
1
|
Calamagrostis stricta
ssp. inexpansa
|
New England Northern Reedgrass
|
Poales
|
Poaceae
|
Pooideae
|
Poeae
|
Agrostidinae
|
2
|
Calamagrostis stricta
ssp. stricta
|
Northern Reedgrass
|
Poales
|
Poaceae
|
Pooideae
|
Poeae
|
Agrostidinae
|
1
|
| Callitriche hermaphroditica
|
Autumnal Water-starwort
|
Lamiales
|
Plantaginaceae
|
|
Callitricheae
|
|
1
|
| Callitriche terrestris
|
Terrestrial Starwort
|
Lamiales
|
Plantaginaceae
|
|
Callitricheae
|
|
2
|
Calopogon tuberosus
var. tuberosus
|
Grass Pink
|
Orchidales
|
Orchidaceae
|
Epidendroideae
|
Arethuseae
|
|
4
|
| Calypso bulbosa
|
Fairy Slipper
|
Orchidales
|
Orchidaceae
|
Epidendroideae
|
Calypsoeae
|
|
1
|
| Campanula rotundifolia
|
Harebell
|
Asterales
|
Campanulaceae
|
Campanuloideae
|
|
|
4
|
| Campanulastrum americanum
|
Tall Bellflower
|
Asterales
|
Campanulaceae
|
Campanuloideae
|
|
|
1
|
| Cardamine douglassii
|
Purple Cress
|
Capparales
|
Brassicaceae
|
|
Cardamineae
|
|
2
|
| Cardamine longii
|
Long's Bittercress
|
Capparales
|
Brassicaceae
|
|
Cardamineae
|
|
2
|
| Cardamine rotundifolia
|
Mountain Watercress
|
Capparales
|
Brassicaceae
|
|
Cardamineae
|
|
1
|
| Carex abscondita
|
Thicket Sedge
|
Juncales
|
Cyperaceae
|
Cyperoideae
|
Cariceae
|
|
1
|
| Carex aggregata
|
Glomerate Sedge
|
Juncales
|
Cyperaceae
|
Cyperoideae
|
Cariceae
|
|
1
|
Carex albicans
var. emmonsii
|
Emmons' Sedge
|
Juncales
|
Cyperaceae
|
Cyperoideae
|
Cariceae
|
|
3
|
| Carex amphibola
|
Narrow-leaved Sedge
|
Juncales
|
Cyperaceae
|
Cyperoideae
|
Cariceae
|
|
1
|
| Carex arcta
|
Northern Clustered Sedge
|
Juncales
|
Cyperaceae
|
Cyperoideae
|
Cariceae
|
|
1
|
| Carex atherodes
|
Awned Sedge
|
Juncales
|
Cyperaceae
|
Cyperoideae
|
Cariceae
|
|
3
|
| Carex atratiformis
|
Scabrous Black Sedge
|
Juncales
|
Cyperaceae
|
Cyperoideae
|
Cariceae
|
|
1
|
| Carex backii
|
Back's Sedge
|
Juncales
|
Cyperaceae
|
Cyperoideae
|
Cariceae
|
|
2
|
| Carex barrattii
|
Barratt's Sedge
|
Juncales
|
Cyperaceae
|
Cyperoideae
|
Cariceae
|
|
1
|
| Carex bicknellii
|
Bicknell's Sedge
|
Juncales
|
Cyperaceae
|
Cyperoideae
|
Cariceae
|
|
3
|
| Carex bigelowii
|
Bigelow's Sedge
|
Juncales
|
Cyperaceae
|
Cyperoideae
|
Cariceae
|
|
2
|
| Carex bullata
|
Button Sedge
|
Juncales
|
Cyperaceae
|
Cyperoideae
|
Cariceae
|
|
1
|
| Carex bushii
|
Bush's Sedge
|
Juncales
|
Cyperaceae
|
Cyperoideae
|
Cariceae
|
|
3
|
| Carex buxbaumii
|
Brown Bog Sedge
|
Juncales
|
Cyperaceae
|
Cyperoideae
|
Cariceae
|
|
2
|
| Carex capillaris
|
Hair-like Sedge
|
Juncales
|
Cyperaceae
|
Cyperoideae
|
Cariceae
|
|
1
|
| Carex careyana
|
Carey's Sedge
|
Juncales
|
Cyperaceae
|
Cyperoideae
|
Cariceae
|
|
1
|
| Carex caroliniana
|
Carolina sedge
|
Juncales
|
Cyperaceae
|
Cyperoideae
|
Cariceae
|
|
1
|
| Carex chordorrhiza
|
Creeping Sedge
|
Juncales
|
Cyperaceae
|
Cyperoideae
|
Cariceae
|
|
2
|
| Carex collinsii
|
Collins' Sedge
|
Juncales
|
Cyperaceae
|
Cyperoideae
|
Cariceae
|
|
1
|
| Carex conjuncta
|
Soft Fox Sedge
|
Juncales
|
Cyperaceae
|
Cyperoideae
|
Cariceae
|
|
1
|
| Carex crawei
|
Crawe's Sedge
|
Juncales
|
Cyperaceae
|
Cyperoideae
|
Cariceae
|
|
2
|
| Carex cryptolepis
|
Northeastern Sedge
|
Juncales
|
Cyperaceae
|
Cyperoideae
|
Cariceae
|
|
3
|
| Carex cumulata
|
Clustered Sedge
|
Juncales
|
Cyperaceae
|
Cyperoideae
|
Cariceae
|
|
2
|
| Carex davisii
|
Davis' Sedge
|
Juncales
|
Cyperaceae
|
Cyperoideae
|
Cariceae
|
|
2
|
Carex debilis
var. debilis
|
White-edge Sedge
|
Juncales
|
Cyperaceae
|
Cyperoideae
|
Cariceae
|
|
2
|
| Carex decomposita
|
Cypress-knee Sedge
|
Juncales
|
Cyperaceae
|
Cyperoideae
|
Cariceae
|
|
1
|
| Carex echinoides
|
Bristly Nodding Sedge
|
Juncales
|
Cyperaceae
|
Cyperoideae
|
Cariceae
|
|
1
|
| Carex emoryi
|
Emory's Sedge
|
Juncales
|
Cyperaceae
|
Cyperoideae
|
Cariceae
|
|
1
|
| Carex formosa
|
Handsome Sedge
|
Juncales
|
Cyperaceae
|
Cyperoideae
|
Cariceae
|
|
2
|
| Carex frankii
|
Frank's Sedge
|
Juncales
|
Cyperaceae
|
Cyperoideae
|
Cariceae
|
|
1
|
| Carex garberi
|
Elk Sedge
|
Juncales
|
Cyperaceae
|
Cyperoideae
|
Cariceae
|
|
1
|
| Carex glaucodea
|
Glaucous Sedge
|
Juncales
|
Cyperaceae
|
Cyperoideae
|
Cariceae
|
|
2
|
| Carex gynocrates
|
Northern Bog Sedge
|
Juncales
|
Cyperaceae
|
Cyperoideae
|
Cariceae
|
|
1
|
| Carex haydenii
|
Cloud Sedge
|
Juncales
|
Cyperaceae
|
Cyperoideae
|
Cariceae
|
|
1
|
| Carex hormathodes
|
Marsh Straw Sedge
|
Juncales
|
Cyperaceae
|
Cyperoideae
|
Cariceae
|
|
2
|
| Carex houghtoniana
|
Houghton's Sedge
|
Juncales
|
Cyperaceae
|
Cyperoideae
|
Cariceae
|
|
2
|
| Carex jamesii
|
James' Sedge
|
Juncales
|
Cyperaceae
|
Cyperoideae
|
Cariceae
|
|
2
|
| Carex livida
|
Livid Sedge
|
Juncales
|
Cyperaceae
|
Cyperoideae
|
Cariceae
|
|
1
|
| Carex lupuliformis
|
False Hop Sedge
|
Juncales
|
Cyperaceae
|
Cyperoideae
|
Cariceae
|
|
2
|
| Carex meadii
|
Mead's Sedge
|
Juncales
|
Cyperaceae
|
Cyperoideae
|
Cariceae
|
|
1
|
| Carex merritt-fernaldii
|
Fernald's Sedge
|
Juncales
|
Cyperaceae
|
Cyperoideae
|
Cariceae
|
|
2
|
| Carex mesochorea
|
Midland Sedge
|
Juncales
|
Cyperaceae
|
Cyperoideae
|
Cariceae
|
|
2
|
| Carex mitchelliana
|
Mitchell's Sedge
|
Juncales
|
Cyperaceae
|
Cyperoideae
|
Cariceae
|
|
1
|
| Carex molesta
|
Troublesome Sedge
|
Juncales
|
Cyperaceae
|
Cyperoideae
|
Cariceae
|
|
2
|
Carex muehlenbergii
var. enervis
|
Muhlenberg's Sedge
|
Juncales
|
Cyperaceae
|
Cyperoideae
|
Cariceae
|
|
3
|
| Carex nigra
|
Black Sedge
|
Juncales
|
Cyperaceae
|
Cyperoideae
|
Cariceae
|
|
1
|
| Carex nigromarginata
|
Black-edge Sedge
|
Juncales
|
Cyperaceae
|
Cyperoideae
|
Cariceae
|
|
2
|
| Carex oligosperma
|
Few-seed Sedge
|
Juncales
|
Cyperaceae
|
Cyperoideae
|
Cariceae
|
|
3
|
| Carex retroflexa
|
Reflexed Sedge
|
Juncales
|
Cyperaceae
|
Cyperoideae
|
Cariceae
|
|
2
|
| Carex reznicekii
|
Reznicek's Sedge
|
Juncales
|
Cyperaceae
|
Cyperoideae
|
Cariceae
|
|
1
|
| Carex sartwellii
|
Sartwell's Sedge
|
Juncales
|
Cyperaceae
|
Cyperoideae
|
Cariceae
|
|
1
|
| Carex schweinitzii
|
Schweinitz' Sedge
|
Juncales
|
Cyperaceae
|
Cyperoideae
|
Cariceae
|
|
2
|
Carex scirpoidea
ssp. scirpoidea
|
Canadian Single-spike Sedge
|
Juncales
|
Cyperaceae
|
Cyperoideae
|
Cariceae
|
|
1
|
| Carex shortiana
|
Short's Sedge
|
Juncales
|
Cyperaceae
|
Cyperoideae
|
Cariceae
|
|
1
|
| Carex straminea
|
Straw Sedge
|
Juncales
|
Cyperaceae
|
Cyperoideae
|
Cariceae
|
|
1
|
Carex striata
var. brevis
|
Walter's Sedge
|
Juncales
|
Cyperaceae
|
Cyperoideae
|
Cariceae
|
|
3
|
| Carex striatula
|
Lined Sedge
|
Juncales
|
Cyperaceae
|
Cyperoideae
|
Cariceae
|
|
1
|
| Carex styloflexa
|
Bent Sedge
|
Juncales
|
Cyperaceae
|
Cyperoideae
|
Cariceae
|
|
1
|
| Carex sychnocephala
|
Many-head Sedge
|
Juncales
|
Cyperaceae
|
Cyperoideae
|
Cariceae
|
|
1
|
| Carex tenuiflora
|
Sparse-flowered Sedge
|
Juncales
|
Cyperaceae
|
Cyperoideae
|
Cariceae
|
|
1
|
| Carex tincta
|
Tinged Sedge
|
Juncales
|
Cyperaceae
|
Cyperoideae
|
Cariceae
|
|
1
|
| Carex typhina
|
Cat-tail Sedge
|
Juncales
|
Cyperaceae
|
Cyperoideae
|
Cariceae
|
|
1
|
| Carex vaginata
|
Sheathed Sedge
|
Juncales
|
Cyperaceae
|
Cyperoideae
|
Cariceae
|
|
1
|
| Carex venusta
|
Dark-green Sedge
|
Juncales
|
Cyperaceae
|
Cyperoideae
|
Cariceae
|
|
1
|
| Carex wiegandii
|
Wiegand's Sedge
|
Juncales
|
Cyperaceae
|
Cyperoideae
|
Cariceae
|
|
1
|
| Carex willdenowii
|
Willdenow's Sedge
|
Juncales
|
Cyperaceae
|
Cyperoideae
|
Cariceae
|
|
3
|
| Carya laciniosa
|
Big Shellbark Hickory
|
Juglandales
|
Juglandaceae
|
Juglandoideae
|
Caryeae
|
|
2
|
| Castilleja coccinea
|
Scarlet Indian-paintbrush
|
Lamiales
|
Orobanchaceae
|
Rhinanthoideae
|
Castillejeae
|
|
1
|
| Ceanothus herbaceus
|
Prairie Redroot
|
Rhamnales
|
Rhamnaceae
|
Ziziphoideae
|
Pomaderreae
|
|
1
|
| Celastrus scandens
|
American Bittersweet
|
Celastrales
|
Celastraceae
|
Celastroideae
|
|
|
3
|
| Cenchrus tribuloides
|
Dune Sandspur
|
Poales
|
Poaceae
|
Panicoideae
|
Paniceae
|
Cenchrinae
|
2
|
| Ceratophyllum echinatum
|
Prickly Hornwort
|
Ceratophyllales
|
Ceratophyllaceae
|
|
|
|
3
|
| Chaerophyllum procumbens
|
Spreading Chervil
|
Apiales
|
Apiaceae
|
Apioideae
|
Scandiceae
|
Scandicinae
|
1
|
| Chamaecyparis thyoides
|
Atlantic White Cedar
|
Pinales
|
Cupressaceae
|
Cupressoideae
|
|
|
2
|
| Chamaelirium luteum
|
Fairy Wand
|
Liliales
|
Melanthiaceae
|
|
Chionographideae
|
|
1
|
| Chasmanthium laxum
|
Slender Spikegrass
|
Poales
|
Poaceae
|
Panicoideae
|
Centotheceae
|
|
1
|
| Cheilanthes lanosa
|
Wooly Lip-fern
|
Polypodiales
|
Pteridaceae
|
Cheilanthoideae
|
|
|
1
|
| Chelone glabra
|
Turtle-heads
|
Lamiales
|
Plantaginaceae
|
|
Cheloneae
|
|
4
|
Chenopodium berlandieri
var. macrocalycium
|
Large-calyx Goosefoot
|
Caryophyllales
|
Chenopodiaceae
|
Chenopodioideae
|
Chenopodieae
|
|
1
|
Chenopodium rubrum
~ Oxybasis rubra
|
Red Pigweed
|
Caryophyllales
|
Chenopodiaceae
|
Chenopodioideae
|
Chenopodieae
|
|
2
|
| Chimaphila maculata
|
Spotted Wintergreen
|
Ericales
|
Ericaceae
|
Monotropoideae
|
Pyroleae
|
|
4
|
Chimaphila umbellata
ssp. cisatlantica
|
Pipsissewa
|
Ericales
|
Ericaceae
|
Monotropoideae
|
Pyroleae
|
|
4
|
| Clintonia umbellulata
|
Speckled Woodlily
|
Liliales
|
Liliaceae
|
Medeoloideae
|
|
|
3
|
| Coeloglossum viride
|
Long-bracted Orchid
|
Orchidales
|
Orchidaceae
|
Orchidoideae
|
Orchideae
|
|
4
|
| Collinsia verna
|
Blue-eyed-Mary
|
Lamiales
|
Plantaginaceae
|
|
Cheloneae
|
|
1
|
| Conopholis americana
|
Squawroot
|
Lamiales
|
Orobanchaceae
|
Orobanchoideae
|
Orobancheae
|
|
4
|
Corallorhiza maculate
var. maculata
|
Spotted Coralroot
|
Orchidales
|
Orchidaceae
|
Epidendroideae
|
Maxillarieae
|
|
4
|
Corallorhiza odontorhiza
var. odontorhiza
|
Autumn Coralroot
|
Orchidales
|
Orchidaceae
|
Epidendroideae
|
Maxillarieae
|
|
4
|
Corallorhiza odontorhiza
var. pringlei
|
Autumn Coralroot
|
Orchidales
|
Orchidaceae
|
Epidendroideae
|
Maxillarieae
|
|
4
|
Corallorhiza striata
var. striata
|
Striped Coralroot
|
Orchidales
|
Orchidaceae
|
Epidendroideae
|
Maxillarieae
|
|
1
|
| Corema conradii
|
Broom Crowberry
|
Ericales
|
Ericaceae
|
Empetroideae
|
Empetreae
|
|
1
|
| Coreopsis rosea
|
Rose Coreopsis
|
Asterales
|
Asteraceae
|
Asteroideae
|
Coreopsideae
|
Coreopsidinae
|
3
|
| Cornus drummondii
|
Rough-leaf Dogwood
|
Cornales
|
Cornaceae
|
Cornoideae
|
|
|
1
|
| Cornus florida
|
Flowering Dogwood
|
Cornales
|
Cornaceae
|
Cornoideae
|
|
|
4
|
| Corydalis aurea
|
Golden Corydalis
|
Ranunculales
|
Papaveraceae
|
Fumarioideae
|
Corydaleae
|
|
2
|
| Corydalis flavula
|
Yellow Harlequin
|
Ranunculales
|
Papaveraceae
|
Fumarioideae
|
Corydaleae
|
|
3
|
| Crassula aquatica
|
Water Pigmyweed
|
Saxifragales
|
Crassulaceae
|
Crassuloideae
|
|
|
1
|
| Crataegus berberifolia
|
Barberry-leaved Hawthorn
|
Rosales
|
Rosaceae
|
Maloideae
|
Maleae
|
|
1
|
| Crataegus mollis
|
Downy Hawthorn
|
Rosales
|
Rosaceae
|
Maloideae
|
Maleae
|
|
1
|
| Crataegus uniflora
|
Dwarf Hawthorn
|
Rosales
|
Rosaceae
|
Maloideae
|
Maleae
|
|
1
|
| Crocanthemum dumosum
|
Bushy Rockrose
|
Malvales
|
Cistaceae
|
|
|
|
2
|
| Crocanthemum propinquum
|
Early Frostweed
|
Malvales
|
Cistaceae
|
|
|
|
2
|
| Crotalaria sagittalis
|
Rattlebox
|
Fabales
|
Fabaceae
|
Faboideae
|
Crotalarieae
|
|
1
|
| Cryptogramma stelleri
|
Slender Cliff Brake
|
Polypodiales
|
Pteridaceae
|
Cryptogrammoideae
|
|
|
4
|
| Cuscuta campestris
|
Field Dodder
|
Solanales
|
Convolvulaceae
|
Cuscutoideae
|
|
|
1
|
| Cuscuta cephalanthi
|
Button-bush Dodder
|
Solanales
|
Convolvulaceae
|
Cuscutoideae
|
|
|
1
|
| Cuscuta compacta
|
Sessile Dodder
|
Solanales
|
Convolvulaceae
|
Cuscutoideae
|
|
|
3
|
Cuscuta obtusiflora
var. glandulosa
|
Southern Dodder
|
Solanales
|
Convolvulaceae
|
Cuscutoideae
|
|
|
1
|
| Cuscuta pentagona
|
Five-angled Field-dodder
|
Solanales
|
Convolvulaceae
|
Cuscutoideae
|
|
|
3
|
| Cuscuta polygonorum
|
Smartweed Dodder
|
Solanales
|
Convolvulaceae
|
Cuscutoideae
|
|
|
1
|
Cynoglossum virginianum
var. boreale
|
Northern Wild Comfrey
|
Boraginales
|
Boraginaceae
|
Boraginoideae
|
Cynoglosseae
|
|
1
|
Cynoglossum virginianum
var. virginianum
|
Wild Comfrey
|
Boraginales
|
Boraginaceae
|
Boraginoideae
|
Cynoglosseae
|
|
1
|
| Cyperus echinatus
|
Globose Flatsedge
|
Juncales
|
Cyperaceae
|
Cyperoideae
|
Cypereae
|
|
1
|
| Cyperus erythrorhizos
|
Red-rooted Flatsedge
|
Juncales
|
Cyperaceae
|
Cyperoideae
|
Cypereae
|
|
3
|
| Cyperus flavescens
|
Yellow Flatsedge
|
Juncales
|
Cyperaceae
|
Cyperoideae
|
Cypereae
|
|
1
|
| Cyperus houghtonii
|
Houghton's Flatsedge
|
Juncales
|
Cyperaceae
|
Cyperoideae
|
Cypereae
|
|
3
|
Cyperus lupulinus
ssp. lupulinus
|
Hop Sedge
|
Juncales
|
Cyperaceae
|
Cyperoideae
|
Cypereae
|
|
2
|
| Cyperus odoratus
|
Rusty Flatsedge
|
Juncales
|
Cyperaceae
|
Cyperoideae
|
Cypereae
|
|
3
|
Cyperus polystachyos
var. texensis
|
Coast Flatsedge
|
Juncales
|
Cyperaceae
|
Cyperoideae
|
Cypereae
|
|
1
|
Cyperus retrorsus
var. retrorsus
|
Retrorse Flatsedge
|
Juncales
|
Cyperaceae
|
Cyperoideae
|
Cypereae
|
|
1
|
| Cyperus schweinitzii
|
Schweinitz's Flatsedge
|
Juncales
|
Cyperaceae
|
Cyperoideae
|
Cypereae
|
|
3
|
| Cypripedium acaule
|
Pink Ladyslipper
|
Orchidales
|
Orchidaceae
|
Cypripedioideae
|
|
|
4
|
| Cypripedium arietinum
|
Ram's-head Ladyslipper
|
Orchidales
|
Orchidaceae
|
Cypripedioideae
|
|
|
2
|
| Cypripedium candidum
|
Small White Ladyslipper
|
Orchidales
|
Orchidaceae
|
Cypripedioideae
|
|
|
1
|
Cypripedium parviflorium
var. makasin
|
Small Yellow Ladyslipper
|
Orchidales
|
Orchidaceae
|
Cypripedioideae
|
|
|
4
|
Cypripedium parviflorium
var. parviflorium
|
Small Yellow Ladyslipper
|
Orchidales
|
Orchidaceae
|
Cypripedioideae
|
|
|
4
|
Cypripedium parviflorium
var. pubescens
|
Yellow Ladyslipper
|
Orchidales
|
Orchidaceae
|
Cypripedioideae
|
|
|
4
|
Cypripedium parviflorum
var. parviflorum
|
Small Yellow Ladyslipper
|
Orchidales
|
Orchidaceae
|
Cypripedioideae
|
|
|
1
|
| Cypripedium reginae
|
Showy Ladyslipper
|
Orchidales
|
Orchidaceae
|
Cypripedioideae
|
|
|
4
|
| Cystopteris bulbifera
|
Bulblet Fern
|
Polypodiales
|
Cystopteridaceae
|
|
|
|
4
|
| Cystopteris fragilis
|
Common Fragile Fern
|
Polypodiales
|
Cystopteridaceae
|
|
|
|
4
|
| Cystopteris protrusa
|
Lowland Fragile Fern
|
Polypodiales
|
Cystopteridaceae
|
|
|
|
1
|
| Cystopteris tenuis
|
Fragile Fern
|
Polypodiales
|
Cystopteridaceae
|
|
|
|
4
|
| Dendrolycopodium dendroideum
|
Northern Tree Clubmoss
|
|
|
|
|
|
4
|
| Dendrolycopodium obscurum
|
Ground Pine
|
|
|
|
|
|
4
|
| Deparia acrostichoides
|
Silvery Spleenwort
|
|
|
|
|
|
4
|
Descurainia pinnata
ssp. brachycarpa
|
Northern Tansy-mustard
|
|
|
|
|
|
1
|
| Desmodium ciliare
|
Little-leaf Tick-trefoil
|
|
|
|
|
|
2
|
| Desmodium humifusum
|
Spreading Tick-clover
|
|
|
|
|
|
1
|
| Desmodium laevigatum
|
Smooth Tick-clover
|
|
|
|
|
|
1
|
| Desmodium nuttallii
|
Nuttall's Tick-clover
|
|
|
|
|
|
1
|
| Desmodium obtusum
|
Beggar-lice
|
|
|
|
|
|
1
|
| Desmodium pauciflorum
|
Small-flowered Tick-clover
|
|
|
|
|
|
1
|
Diapensia lapponica
var. lapponica
|
Diapensia
|
|
|
|
|
|
2
|
| Diarrhena obovata
|
Beakgrass
|
|
|
|
|
|
2
|
| Dichanthelium leibergii
|
Leiberg's Panic Grass
|
|
|
|
|
|
1
|
Dichanthelium oligosanthes
var. oligosanthes
|
Few-flowered Panic Grass
|
|
|
|
|
|
1
|
| Dichanthelium scabriusculum
|
Panic Grass
|
|
|
|
|
|
1
|
| Dichanthelium scoparium
|
Velvet Panic Grass
|
|
|
|
|
|
1
|
| Dichanthelium wrightianum
|
Wright's Panic Grass
|
|
|
|
|
|
1
|
| Digitaria filiformis
|
Slender Crabgrass
|
|
|
|
|
|
1
|
| Diospyros virginiana
|
Persimmon
|
|
|
|
|
|
2
|
| Diphasiastrum complanatum
|
Northern Running-pine
|
|
|
|
|
|
1
|
| Diphasiastrum digitatum
|
Running-pine
|
|
|
|
|
|
4
|
| Diphasiastrum sitchense
|
Sitka Clubmoss
|
|
|
|
|
|
1
|
| Diphasiastrum tristachyum
|
Ground Cedar
|
|
|
|
|
|
4
|
| Diplazium pycnocarpon
|
Glade Fern
|
|
|
|
|
|
4
|
| Draba arabisans
|
Rock-cress
|
|
|
|
|
|
2
|
| Draba glabella
|
Smooth Rock-cress
|
|
|
|
|
|
1
|
| Draba reptans
|
Carolina Whitlow-grass
|
|
|
|
|
|
2
|
| Dracocephalum parviflorum
|
American Dragonhead
|
|
|
|
|
|
1
|
| Drosera filiformis
|
Dew-thread
|
|
|
|
|
|
3
|
| Drosera filiformis
|
Dewthread
|
|
|
|
|
|
4
|
| Drosera intermedia
|
Sundew
|
|
|
|
|
|
4
|
Drosera rotundifolia
var. comosa
|
Sundew
|
|
|
|
|
|
4
|
Drosera rotundifolia
var. rotundifolia
|
Sundew
|
|
|
|
|
|
4
|
| Dryopteris campyloptera
|
Mountain Wood Fern
|
|
|
|
|
|
4
|
| Dryopteris carthusiana
|
Spinulose Wood Fern
|
|
|
|
|
|
4
|
| Dryopteris celsa
|
Log Fern
|
|
|
|
|
|
1
|
| Dryopteris clintoniana
|
Clinton's Shield Fern
|
|
|
|
|
|
4
|
| Dryopteris cristata
|
Crested Wood Fern
|
|
|
|
|
|
4
|
| Dryopteris fragrans
|
Fragrant Cliff Fern
|
|
|
|
|
|
1
|
| Dryopteris goldiana
|
Giant Wood Fern
|
|
|
|
|
|
4
|
Dryopteris intermedia
ssp. intermedia
|
Fancy Fern
|
|
|
|
|
|
4
|
| Dryopteris marginalis
|
Marginal Wood Fern
|
|
|
|
|
|
4
|
| Elatine americana
|
American Waterwort
|
|
|
|
|
|
1
|
| Eleocharis aestuum
|
Tidal Spikerush
|
|
|
|
|
|
1
|
| Eleocharis diandra
|
Wright's Spikerush
|
|
|
|
|
|
1
|
| Eleocharis engelmannii
|
Engelmann's Spikerush
|
|
|
|
|
|
1
|
| Eleocharis equisetoides
|
Knotted Spikerush
|
|
|
|
|
|
2
|
| Eleocharis fallax
|
Creeping Spikerush
|
|
|
|
|
|
1
|
| Eleocharis melanocarpa
|
Black-fruited Spikerush
|
|
|
|
|
|
3
|
| Eleocharis ovata
|
Ovate Spikerush
|
|
|
|
|
|
1
|
| Eleocharis quadrangulata
|
Angled Spikerush
|
|
|
|
|
|
1
|
| Eleocharis robbinsii
|
Robbins Spikerush
|
|
|
|
|
|
3
|
Eleocharis tenuis
var. pseudoptera
|
Slender Spikerush
|
|
|
|
|
|
1
|
| Eleocharis tricostata
|
Three-ribbed Spikerush
|
|
|
|
|
|
1
|
| Eleocharis tuberculosa
|
Long-tubercled Spikerush
|
|
|
|
|
|
2
|
Eleocharis uniglumis
var. halophila
|
Salt-marsh Spikerush
|
|
|
|
|
|
2
|
Elymus glaucus
ssp. glaucus
|
Blue Wild Rye
|
|
|
|
|
|
1
|
| Empetrum atropurpureum
|
Purple Crowberry
|
|
|
|
|
|
1
|
| Empetrum nigrum
|
Black Crowberry
|
|
|
|
|
|
3
|
| Endodeca serpentaria
|
Virginia Snakeroot
|
|
|
|
|
|
2
|
| Epigaea repens
|
Trailing Arbutus
|
|
|
|
|
|
4
|
Epilobium hornemannii
ssp. hornemannii
|
Alpine Willow-herb
|
|
|
|
|
|
1
|
| Equisetum palustre
|
Marsh Horsetail
|
|
|
|
|
|
2
|
| Equisetum pratense
|
Meadow Horsetail
|
|
|
|
|
|
2
|
Erechtites hieraciifolius
var. megalocarpa
|
Fireweed
|
|
|
|
|
|
1
|
| Erigenia bulbosa
|
Harbinger-of-spring
|
|
|
|
|
|
1
|
| Erigeron hyssopifolius
|
Daisy Fleabane
|
|
|
|
|
|
1
|
Erigeron philadelphicus
var. provancheri
|
Provancher's Fleabane
|
|
|
|
|
|
1
|
Eriophorum angustifolium
ssp. angustifolium
|
Narrow-leaf Cottongrass
|
|
|
|
|
|
1
|
| Euonymus americanus
|
American Strawberry-bush
|
|
|
|
|
|
1
|
| Euonymus obovatus
|
Running Strawberry-bush
|
|
|
|
|
|
4
|
Eupatorium album
var. subvenosum
|
White Boneset
|
|
|
|
|
|
2
|
Eupatorium album
var. album
|
White Boneset
|
|
Asteraceae
|
Asteroideae
|
Eupatorieae
|
|
1
|
Eupatorium leucolepis
var. leucolepis
|
White-bracted Boneset
|
|
Asteraceae
|
Asteroideae
|
Eupatorieae
|
|
1
|
| Eupatorium pubescens
|
Serrate Round-leaf Boneset
|
|
Asteraceae
|
Asteroideae
|
Eupatorieae
|
|
1
|
Eupatorium rotundifolium
var. rotundifolium
|
Round-leaf Boneset
|
|
Asteraceae
|
Asteroideae
|
Eupatorieae
|
|
1
|
| Eupatorium torreyanum
|
Fringed Boneset
|
|
|
|
|
|
2
|
| Euphorbia ipecacuanhae
|
American Ipecac
|
|
|
|
|
|
1
|
| Eurybia radula
|
Swamp Aster
|
|
|
|
|
|
1
|
| Eurybia spectabilis
|
Showy Aster
|
|
|
|
|
|
2
|
Festuca saximontana
var. saximontana
|
Sheep Fescue
|
|
|
|
|
|
1
|
| Fimbristylis castanea
|
Marsh Fimbry
|
|
|
|
|
|
2
|
| Frasera caroliniensis
|
Green Gentian
|
|
|
|
|
|
2
|
| Fuirena pumila
|
Dwarf Umbrella Sedge
|
|
|
|
|
|
3
|
| Galearis spectabilis
|
Showy Orchis
|
|
|
|
|
|
4
|
| Galium concinnum
|
Shining Bedstraw
|
|
|
|
|
|
1
|
| Galium kamtschaticum
|
Northern Wild-licorice
|
|
|
|
|
|
1
|
| Gaylussacia bigeloviana
|
Dwarf Huckleberry
|
|
|
|
|
|
1
|
| Gentiana andrewsii
|
Closed Gentian
|
|
|
|
|
|
4
|
| Gentiana clausa
|
Blind Gentian
|
|
|
|
|
|
4
|
| Gentiana linearis
|
Closed Gentian
|
|
|
|
|
|
4
|
| Gentiana saponaria
|
Soapwort Gentian
|
|
|
|
|
|
1
|
Gentianella quinquefolia
ssp. quinquefolia
|
Stiff Gentian
|
|
|
|
|
|
4
|
| Gentianopsis crinita
|
Fringed Gentian
|
|
|
|
|
|
4
|
| Gentianopsis virgata
|
Lesser Fringed Gentian
|
|
|
|
|
|
1
|
| Geocaulon lividum
|
Purple Comandra
|
|
|
|
|
|
1
|
Geum macrophyllum
var. macrophyllum
|
Bigleaf Yellow Avens
|
|
|
|
|
|
1
|
Geum triflorum
var. triflorum
|
Prairie-smoke
|
|
|
|
|
|
2
|
| Geum virginianum
|
Rough Avens
|
|
|
|
|
|
2
|
| Goodyera pubescens
|
Downy Rattlesnake-plantain
|
|
|
|
|
|
4
|
| Goodyera repens
|
Dwarf Rattlesnake-plantain
|
|
|
|
|
|
4
|
| Goodyera tesselata
|
Rattlesnake Plantain
|
|
|
|
|
|
4
|
| Gymnocarpium dryopteris
|
Oak Fern
|
|
|
|
|
|
4
|
| Gymnocladus dioicus
|
Kentucky Coffee Tree
|
|
|
|
|
|
1
|
Hackelia deflexa
var. americana
|
Northern Stickseed
|
|
|
|
|
|
1
|
| Halenia deflexa
|
Spurred Gentian
|
|
|
|
|
|
1
|
| Hasteola suaveolens
|
Sweet-scented Indian-plantain
|
|
|
|
|
|
1
|
| Hedeoma hispida
|
Mock-pennyroyal
|
|
|
|
|
|
2
|
| Helianthus angustifolius
|
Swamp Sunflower
|
|
|
|
|
|
2
|
| Heteranthera reniformis
|
Kidneyleaf Mud-plantain
|
|
|
|
|
|
3
|
Heuchera americana
var. americana
|
American Alumroot
|
|
|
|
|
|
3
|
| Hippuris vulgaris
|
Common Mare's-tail
|
|
|
|
|
|
1
|
| Hottonia inflata
|
Featherfoil
|
|
|
|
|
|
2
|
Houstonia purpurea
var. calycosa
|
Southern Bluets
|
|
|
|
|
|
1
|
Houstonia purpurea
var. purpurea
|
Purple Bluets
|
|
|
|
|
|
1
|
| Huperzia appressa
|
Appalachian Firmoss
|
|
|
|
|
|
3
|
| Huperzia lucidula
|
Shining Firmoss
|
|
|
|
|
|
4
|
| Huperzia selago
|
Fir Clubmoss
|
|
|
|
|
|
1
|
| Hydrangea arborescens
|
Wild Hydrangea
|
|
|
|
|
|
2
|
| Hydrastis canadensis
|
Golden-seal
|
|
|
|
|
|
2
|
| Hydrocotyle ranunculoides
|
Floating Pennywort
|
|
|
|
|
|
1
|
| Hydrocotyle umbellata
|
Water-pennywort
|
|
|
|
|
|
3
|
| Hydrocotyle verticillata
|
Whorled-pennywort
|
|
|
|
|
|
1
|
| Hydrophyllum appendiculatum
|
Appendaged Waterleaf
|
|
|
|
|
|
1
|
| Hylotelephium telephioides
|
Live-forever
|
|
|
|
|
|
1
|
| Hypericum adpressum
|
Creeping St. John's-wort
|
|
|
|
|
|
2
|
| Hypericum ascyron
|
Great St. John's-wort
|
|
|
|
|
|
3
|
| Hypericum densiflorum
|
Bushy St. John's-wort
|
|
|
|
|
|
1
|
| Hypericum denticulatum
|
Coppery St. John's-wort
|
|
|
|
|
|
1
|
Hypericum hypericoides
ssp. multicaule
|
St. Andrew's Cross
|
|
|
|
|
|
1
|
| Hypericum prolificum
|
Shrubby St. John's-wort
|
|
|
|
|
|
2
|
| Ilex glabra
|
Gallberry
|
|
|
|
|
|
4
|
| Ilex laevigata
|
Smooth Winterberry
|
|
|
|
|
|
4
|
| Ilex montana
|
Mountain Winterberry
|
|
|
|
|
|
4
|
Ilex opaca
var. opaca
|
American Holly
|
|
|
|
|
|
4
|
| Ilex verticillata
|
Black Alder
|
|
|
|
|
|
4
|
| Ipomoea pandurata
|
Wild Potato-vine
|
|
|
|
|
|
1
|
| Iris prismatica
|
Slender Blue Flag
|
|
|
|
|
|
2
|
Iris virginica
var. shrevei
|
Southern Blue Flag
|
|
|
|
|
|
1
|
| Isoetes lacustris
|
Large-spored Quillwort
|
|
|
|
|
|
3
|
| Isoetes riparia
|
Riverbank Quillwort
|
|
|
|
|
|
1
|
| Isotria medeoloides
|
Small Whorled Pogonia
|
|
Orchidaceae
|
|
|
|
1
|
| Isotria verticillata
|
Large Whorled Pogonia
|
|
|
|
|
|
4
|
| Jeffersonia diphylla
|
Twin-leaf
|
|
|
|
|
|
2
|
| Juglans cinerea
|
Butternut
|
|
|
|
|
|
4
|
| Juncus ambiguus
|
Doubtful Toad-rush
|
|
|
|
|
|
1
|
| Juncus biflorus
|
Large Grass-leaved Rush
|
|
|
|
|
|
1
|
| Juncus brachycarpus
|
Short-fruit Rush
|
|
|
|
|
|
1
|
| Juncus debilis
|
Weak Rush
|
|
|
|
|
|
1
|
| Juncus ensifolius
|
Ensiform Rush
|
|
|
|
|
|
1
|
| Juncus scirpoides
|
Scirpus-like Rush
|
|
|
|
|
|
1
|
Juncus stygius
ssp. americanus
|
Moor-rush
|
|
|
|
|
|
1
|
| Juncus subcaudatus
|
Woods-rush
|
|
|
|
|
|
1
|
| Juncus trifidus
|
Arctic Rush
|
|
|
|
|
|
2
|
| Juniperus horizontalis
|
Creeping Juniper
|
|
|
|
|
|
1
|
| Kalmia angustifolia
|
Sheep Laurel
|
|
|
|
|
|
4
|
| Kalmia latifolia
|
Mountain Laurel
|
|
|
|
|
|
4
|
| Kalmia polifolia
|
Bog Laurel
|
|
|
|
|
|
4
|
| Kalmia procumbens
|
Alpine Azalea
|
|
|
|
|
|
1
|
| Lachnanthes caroliana
|
Carolina Redroot
|
|
|
|
|
|
1
|
| Lactuca floridana
|
False Lettuce
|
|
|
|
|
|
1
|
| Lactuca hirsuta
|
Downy Lettuce
|
|
|
|
|
|
1
|
| Lathyrus ochroleucus
|
Creamy Wild-pea
|
|
|
|
|
|
3
|
| Lathyrus venosus
|
Rough Veiny Vetchling
|
|
|
|
|
|
1
|
Lechea pulchella
var. moniliformis
|
Bead Pinweed
|
|
|
|
|
|
1
|
| Lechea racemulosa
|
Illinois Pinweed
|
|
|
|
|
|
3
|
| Lechea tenuifolia
|
Slender Pinweed
|
|
|
|
|
|
2
|
| Lemna perpusilla
|
Minute Duckweed
|
|
|
|
|
|
1
|
| Lemna valdiviana
|
Pale Duckweed
|
|
|
|
|
|
1
|
Leptochloa fusca
ssp. fascicularis
|
Salt-meadow Grass
|
|
|
|
|
|
1
|
| Lespedeza angustifolia
|
Narrow-leaved Bush-clover
|
|
|
|
|
|
2
|
| Lespedeza frutescens
|
Violet Bush-clover
|
|
|
|
|
|
3
|
| Lespedeza repens
|
Trailing Bush-clover
|
|
|
|
|
|
3
|
| Lespedeza stuevei
|
Velvety Bush-clover
|
|
|
|
|
|
2
|
| Liatris cylindracea
|
Slender Blazing-star
|
|
|
|
|
|
1
|
Liatris scariosa
var. novae-angliae
|
Northern Blazing-star
|
|
|
|
|
|
2
|
Liatris scariosa
var. nieuwlandii
|
Nieuwland's Blazing-star
|
|
|
|
|
|
1
|
Ligusticum scothicum
ssp. scothicum
|
Scotch Lovage
|
|
|
|
|
|
1
|
| Lilaeopsis chinensis
|
Eastern Grasswort
|
|
|
|
|
|
2
|
Lilium canadense
ssp. canadense
|
Canada Lily
|
|
|
|
|
|
4
|
Lilium canadense
ssp. editorium
|
Canada Lily
|
|
|
|
|
|
4
|
| Lilium michiganense
|
Michigan Lily
|
|
|
|
|
|
1
|
| Lilium philadelphicum
|
Woodlily
|
|
|
|
|
|
4
|
| Lilium superbum
|
Turk's-cap Lily
|
|
|
|
|
|
4
|
| Limonium carolinianum
|
Sea Lavender
|
|
|
|
|
|
4
|
| Limosella australis
|
Mudwort
|
|
|
|
|
|
3
|
| Linum intercursum
|
Sandplain Wild Flax
|
|
|
|
|
|
2
|
Linum medium
var. texanum
|
Southern Yellow Flax
|
|
|
|
|
|
2
|
| Linum striatum
|
Stiff Yellow Flax
|
|
|
|
|
|
3
|
| Linum sulcatum
|
Yellow Wild Flax
|
|
|
|
|
|
2
|
| Liparis liliifolia
|
Large Twayblade
|
|
|
|
|
|
1
|
| Liparis loeselii
|
Bog Twayblade
|
|
|
|
|
|
4
|
| Lipocarpha micrantha
|
Dwarf Bulrush
|
|
|
|
|
|
1
|
| Listera auriculata
|
Auricled Twayblade
|
|
|
|
|
|
1
|
| Listera australis
|
Southern Twayblade
|
|
|
|
|
|
1
|
| Listera convallarioides
|
Broad-lipped Twayblade
|
|
|
|
|
|
1
|
Listera cordata
var. cordata
|
Heartleaf Twayblade
|
|
|
|
|
|
4
|
Lithospermum caroliniense
ssp. croceum
|
Golden Puccoon
|
|
|
|
|
|
1
|
| Littorella uniflora
|
American Shore-grass
|
|
|
|
|
|
1
|
| Lobelia cardinalis
|
Cardinal-flower
|
|
|
|
|
|
4
|
| Lobelia dortmanna
|
Water Lobella
|
|
|
|
|
|
4
|
| Lobelia nuttallii
|
Nuttall's Lobelia
|
|
|
|
|
|
3
|
| Ludwigia sphaerocarpa
|
Globe-fruited Ludwigia
|
|
|
|
|
|
2
|
| Lupinus perennis
|
Wild Lupine
|
|
|
|
|
|
3
|
| Luzula bulbosa
|
Hairy Woodrush
|
|
|
|
|
|
3
|
| Luzula echinata
|
Spiny Woodrush
|
|
|
|
|
|
3
|
| Luzula spicata
|
Spiked Woodrush
|
|
|
|
|
|
1
|
| Lycopodiella alopecuroides
|
Foxtail Clubmoss
|
|
|
|
|
|
4
|
| Lycopodiella appressa
|
Swamp Clubmoss
|
|
|
|
|
|
4
|
| Lycopodiella inundata
|
Northern Bog Clubmoss
|
|
|
|
|
|
4
|
| Lycopodium clavatum
|
Running Cedar
|
|
|
|
|
|
4
|
| Lycopus amplectens
|
Water-horehound
|
|
|
|
|
|
2
|
| Lycopus rubellus
|
Gypsy-wort
|
|
|
|
|
|
1
|
| Lygodium palmatum
|
Climbing Fern
|
|
Lygodiaceae
|
|
|
|
1
|
| Lysimachia hybrida
|
Lance-leaved Loosestrife
|
|
|
|
|
|
1
|
| Lysimachia quadriflora
|
Four-flowered Loosestrife
|
|
|
|
|
|
1
|
| Lythrum lineare
|
Saltmarsh Loosestrife
|
|
|
|
|
|
1
|
| Magnolia virginiana
|
Sweetbay Magnolia
|
|
|
|
|
|
1
|
| Malaxis bayardii
|
Bayard's Adder's-mouth Orchid
|
|
|
|
|
|
1
|
Malaxis monophyllos
var. brachypoda
|
White Adder's-mouth
|
|
|
|
|
|
4
|
| Malaxis unifolia
|
Green Adder's-mouth
|
|
|
|
|
|
4
|
| Matteuccia struthiopteris
|
Ostrich Fern
|
|
|
|
|
|
4
|
| Melanthium virginicum
|
Virginia Bunchflower
|
|
|
|
|
|
1
|
| Mertensia virginica
|
Virginia Bluebells
|
|
|
|
|
|
4
|
| Mimulus alatus
|
Winged Monkeyflower
|
|
|
|
|
|
3
|
| Minuartia caroliniana
|
Pine-barren Sandwort
|
|
|
|
|
|
3
|
| Minuartia glabra
|
Appalachian Sandwort
|
|
|
|
|
|
3
|
| Minuartia groenlandica
|
Mountain Sandwort
|
|
|
|
|
|
3
|
| Monarda clinopodia
|
Basil-balm
|
|
|
|
|
|
1
|
| Monarda didyma
|
Bee-balm
|
|
|
|
|
|
4
|
| Myrica caroliniensis
|
Bayberry
|
|
|
|
|
|
4
|
| Myriophyllum alterniflorum
|
Water Milfoil
|
|
|
|
|
|
2
|
| Myriophyllum farwellii
|
Farwell's Water-milfoil
|
|
|
|
|
|
2
|
| Myriophyllum pinnatum
|
Green Parrot's-feather
|
|
|
|
|
|
1
|
Najas guadalupensis
ssp. muenscheri
|
Hudson River Water-nymph
|
|
|
|
|
|
1
|
Najas guadalupensis
ssp. olivacea
|
Southern Naiad
|
|
|
|
|
|
1
|
| Najas marina
|
Holly-leaved Naiad
|
|
|
|
|
|
1
|
| Oclemena nemoralis
|
Bog Aster
|
|
|
|
|
|
3
|
| Oenothera laciniata
|
Cut-leaved Evening-primrose
|
|
|
|
|
|
1
|
| Oenothera oakesiana
|
Oakes' Evening Primrose
|
|
|
|
|
|
2
|
| Oldenlandia uniflora
|
Clustered Bluets
|
|
|
|
|
|
1
|
| Oligoneuron album
|
Upland Goldenrod
|
|
|
|
|
|
3
|
| Oligoneuron houghtonii
|
Houghton's Goldenrod
|
|
|
|
|
|
1
|
| Oligoneuron ohioense
|
Ohio Goldenrod
|
|
|
|
|
|
2
|
Oligoneuron rigidum
var. rigidum
|
Stiff-leaf Goldenrod
|
|
|
|
|
|
2
|
| Omalotheca sylvatica
|
Woodland Cudweed
|
|
|
|
|
|
1
|
| Onosmodium virginianum
|
Virginia False Gromwell
|
|
|
|
|
|
1
|
| Ophioglossum pusillum
|
Adder's-tongue
|
|
|
|
|
|
4
|
Opuntia humifusa
var. humifusa
|
Eastern Prickly Pear
|
|
|
|
|
|
4
|
| Orontium aquaticum
|
Golden Club
|
|
|
|
|
|
2
|
| Osmunda cinnamomea
|
Cinnamon Fern
|
|
|
|
|
|
4
|
| Osmunda claytoniana
|
Interrupted Fern
|
|
|
|
|
|
4
|
Osmunda regalis
ssp. spectabilis
|
Royal Fern
|
|
|
|
|
|
4
|
| Oxalis violacea
|
Violet Wood-sorrel
|
|
|
|
|
|
2
|
| Oxypolis rigidior
|
Stiff Cowbane
|
|
|
|
|
|
1
|
| Panax quinquefolius
|
Ginseng
|
|
|
|
|
|
4
|
| Panicum amarum
|
Bitter Panic Grass
|
|
|
|
|
|
3
|
| Panicum flexile
|
Wiry Panic Grass
|
|
|
|
|
|
3
|
Panicum rigidulum
var. elongatum
|
Tall Flat Panic Grass
|
|
|
|
|
|
1
|
| Parnassia glauca
|
Grass-of-parnassus
|
|
|
|
|
|
4
|
| Paspalum laeve
|
Field Beadgrass
|
|
|
|
|
|
1
|
| Pedicularis lanceolata
|
Swamp Lousewort
|
|
|
|
|
|
2
|
| Pellaea atropurpurea
|
Purple Cliff Brake
|
|
|
|
|
|
4
|
Pellaea glabella
ssp. glabella
|
Smooth Cliff Brake
|
|
|
|
|
|
2
|
| Persicaria careyi
|
Carey's Smartweed
|
|
|
|
|
|
1
|
| Persicaria setacea
|
Swamp Smartweed
|
|
|
|
|
|
1
|
Petasites frigidus
var. palmatus
|
Sweet Coltsfoot
|
|
|
|
|
|
1
|
| Phegopteris connectilis
|
Northern Beech Fern
|
|
|
|
|
|
4
|
| Phegopteris hexagonoptera
|
Broad Beech Fern
|
|
|
|
|
|
4
|
Phlox maculata
ssp. maculata
|
Wild Sweet-william
|
|
|
|
|
|
1
|
| Phlox pilosa
|
Downy Phlox
|
|
|
|
|
|
1
|
Phragmites australis
ssp. americanus
|
American Phragmites
|
|
|
|
|
|
3
|
| Physalis virginiana
|
Virginia Ground-cherry
|
|
|
|
|
|
1
|
| Pinguicula vulgaris
|
Butterwort
|
|
|
|
|
|
2
|
| Pinus banksiana
|
Jack Pine
|
|
|
|
|
|
3
|
| Pinus echinata
|
Shortleaf Pine
|
|
|
|
|
|
1
|
| Pinus virginiana
|
Virginia Pine
|
|
|
|
|
|
1
|
| Piptatherum canadense
|
Canada Ricegrass
|
|
|
|
|
|
2
|
| Plantago cordata
|
Heartleaf Plantain
|
|
|
|
|
|
3
|
Plantago maritima
var. juncoides
|
Seaside Plantain
|
|
|
|
|
|
2
|
| Platanthera aquilonis
|
Northern Green Orchid
|
|
|
|
|
|
4
|
Platanthera blephariglottis
var. blephariglottis
|
White Fringed Orchid
|
|
|
|
|
|
4
|
| Platanthera ciliaris
|
Orange Fringed Orchis
|
|
|
|
|
|
1
|
| Platanthera clavellata
|
Green Wooldland Orchid
|
|
|
|
|
|
4
|
| Platanthera cristata
|
Crested Fringed Orchis
|
|
|
|
|
|
1
|
Platanthera dilatata
var. dilatata
|
Bog-candle
|
|
|
|
|
|
4
|
Platanthera flava
var. herbiola
|
Tubercled Orchid
|
|
|
|
|
|
4
|
| Platanthera grandiflora
|
Large Purple Fringed Orchid
|
|
|
|
|
|
4
|
| Platanthera hookeri
|
Hooker's Orchid
|
|
|
|
|
|
1
|
| Platanthera lacera
|
Ragged Fringed Orchid
|
|
|
|
|
|
4
|
| Platanthera leucophaea
|
Eastern Prairie Fringed Orchid
|
|
|
|
|
|
1
|
| Platanthera obtusata
|
Blunt-leaved Orchid
|
|
|
|
|
|
4
|
| Platanthera orbiculata
|
Large Round-leaved Orchid
|
|
|
|
|
|
4
|
| Platanthera psycodes
|
Small Purple Fringed Orchid
|
|
|
|
|
|
4
|
| Poa cuspidata
|
Bluegrass
|
|
|
|
|
|
1
|
Poa glauca
ssp. glauca
|
White Bluegrass
|
|
|
|
|
|
1
|
| Poa interior
|
Inland Bluegrass
|
|
|
|
|
|
1
|
Poa laxa
ssp. fernaldiana
|
Fernald's Bluegrass
|
|
|
|
|
|
1
|
| Poa paludigena
|
Slender Marsh Bluegrass
|
|
|
|
|
|
1
|
| Poa sylvestris
|
Woodland Bluegrass
|
|
|
|
|
|
1
|
| Podostemum ceratophyllum
|
Riverweed
|
|
|
|
|
|
2
|
| Pogonia ophioglossoides
|
Rose Pogonia
|
|
|
|
|
|
4
|
| Polemonium vanbruntiae
|
Jacob's-ladder
|
|
|
|
|
|
3
|
Polygala cruciata
var. aquilonia
|
Cross-leaf Milkwort
|
|
|
|
|
|
3
|
| Polygala lutea
|
Orange Milkwort
|
|
|
|
|
|
1
|
| Polygala nuttallii
|
Nuttall's Milkwort
|
|
|
|
|
|
2
|
Polygonum aviculare
ssp. buxiforme
|
Small's Knotweed
|
|
|
|
|
|
1
|
| Polygonum douglasii
|
Douglas' Knotweed
|
|
|
|
|
|
2
|
| Polygonum glaucum
|
Seabeach Knotweed
|
|
|
|
|
|
3
|
| Polygonum tenue
|
Slender Knotweed
|
|
|
|
|
|
3
|
| Polypodium virginianum
|
Rock Polypody
|
|
|
|
|
|
4
|
| Polystichum acrostichoides
|
Christmas Fern
|
|
|
|
|
|
4
|
| Polystichum braunii
|
Braun's Holly Fern
|
|
|
|
|
|
4
|
| Polystichum lonchitis
|
Northern Holly-fern
|
|
|
|
|
|
1
|
| Populus heterophylla
|
Swamp Cottonwood
|
|
|
|
|
|
2
|
| Potamogeton alpinus
|
Northern Pondweed
|
|
|
|
|
|
2
|
| Potamogeton confervoides
|
Algae-like Pondweed
|
|
|
|
|
|
3
|
| Potamogeton diversifolius
|
Water-thread Pondweed
|
|
|
|
|
|
1
|
| Potamogeton hillii
|
Hill's Pondweed
|
|
|
|
|
|
2
|
| Potamogeton ogdenii
|
Ogden's Pondweed
|
|
|
|
|
|
1
|
| Potamogeton pulcher
|
Spotted Pondweed
|
|
|
|
|
|
2
|
| Potamogeton strictifolius
|
Straight-leaf Pondweed
|
|
|
|
|
|
1
|
| Potentilla paradoxa
|
Bushy Cinquefoil
|
|
|
|
|
|
1
|
| Prenanthes boottii
|
Boott's Rattlesnake-root
|
|
|
|
|
|
1
|
| Prenanthes crepidinea
|
Nodding Rattlesnake-root
|
|
|
|
|
|
1
|
| Primula mistassinica
|
Bird's-eye Primrose
|
|
|
|
|
|
2
|
| Proserpinaca pectinata
|
Comb-leaved Mermaid-weed
|
|
|
|
|
|
2
|
Prunus pumila
var. depressa
|
Dwarf Sand-cherry
|
|
|
|
|
|
2
|
Prunus pumila
var. pumila
|
Low Sand-cherry
|
|
|
|
|
|
1
|
| Pseudognaphalium micradenium
|
Catfoot
|
|
|
|
|
|
1
|
| Pseudolycopodiella caroliniana
|
Carolina Clubmoss
|
|
|
|
|
|
1
|
Ptelea trifoliata
ssp. trifoliata
|
Wafer-ash
|
|
|
|
|
|
1
|
Pteridium aquilinum
var. pseudocaudatum
|
Southeastern Bracken
|
|
Dennstaedtiaceae
|
|
|
|
1
|
| Pterospora andromedea
|
Giant Pine-drops
|
|
|
|
|
|
1
|
| Ptilimnium capillaceum
|
Mock Bishop's-weed
|
|
|
|
|
|
3
|
| Pycnanthemum clinopodioides
|
Basil Mountain-mint
|
|
|
|
|
|
1
|
| Pycnanthemum muticum
|
Blunt Mountain-mint
|
|
|
|
|
|
2
|
| Pycnanthemum torrei
|
Torrey's Mountain-mint
|
|
|
|
|
|
1
|
Pycnanthemum verticillatum
var. verticillatum
|
Whorled Mountain-mint
|
|
|
|
|
|
1
|
Pyrola asarifolia
ssp. asarifolia
|
Pink Wintergreen
|
|
|
|
|
|
2
|
| Pyrola minor
|
Snowline Wintergreen
|
|
|
|
|
|
1
|
| Pyxidanthera barbulata
|
Flowering Pixiemoss
|
|
|
|
|
|
1
|
Quercus marilandica
var. marilandica
|
Blackjack Oak
|
|
|
|
|
|
3
|
| Quercus phellos
|
Willow Oak
|
|
|
|
|
|
1
|
Quercus shumardii
var. shumardii
|
Shumard Oak
|
|
|
|
|
|
1
|
| Ranunculus cymbalaria
|
Seaside Crowfoot
|
|
|
|
|
|
1
|
Ranunculus hispidus
var. nitidus
|
Swamp Buttercup
|
|
|
|
|
|
1
|
| Ranunculus micranthus
|
Small-flowered Crowfoot
|
|
|
|
|
|
3
|
Rhodiola integrifolia
ssp. leedyi
|
Leedy's Roseroot
|
|
|
|
|
|
1
|
| Rhodiola rosea
|
Roseroot
|
|
|
|
|
|
1
|
| Rhododendron canadense
|
Rhodora
|
|
|
|
|
|
2
|
Rhododendron lapponicum
var. lapponicum
|
Lapland Rosebay
|
|
|
|
|
|
1
|
| Rhododendron maximum
|
Great Laurel
|
|
|
|
|
|
4
|
| Rhododendron periclymenoides
|
Pinkster
|
|
|
|
|
|
4
|
| Rhododendron prinophyllum
|
Early Azalea
|
|
|
|
|
|
4
|
| Rhododendron viscosum
|
Swamp Azalea
|
|
|
|
|
|
4
|
| Rhynchospora fusca
|
Sooty Beakrush
|
|
|
|
|
|
3
|
| Rhynchospora inundata
|
Drowned Beakrush
|
|
|
|
|
|
2
|
| Rhynchospora macrostachya
|
Tall Beakrush
|
|
|
|
|
|
3
|
| Rhynchospora nitens
|
Short-beaked Beakrush
|
|
|
|
|
|
2
|
| Rhynchospora pallida
|
Pale Beakrush
|
|
|
|
|
|
1
|
| Rhynchospora scirpoides
|
Long-beaked Beakrush
|
|
|
|
|
|
3
|
| Rorippa aquatica
|
Lake-cress
|
|
|
|
|
|
2
|
Rosa acicularis
ssp. sayi
|
Prickly Rose
|
|
|
|
|
|
1
|
| Rotala ramosior
|
Tooth-cup
|
|
|
|
|
|
2
|
| Rubus cuneifolius
|
Sand Blackberry
|
|
|
|
|
|
1
|
| Rumex fueginus
|
Golden Dock
|
|
|
|
|
|
1
|
| Rumex hastatulus
|
Heart Sorrel
|
|
|
|
|
|
1
|
| Rumex persicarioides
|
Seaside Dock
|
|
|
|
|
|
1
|
| Sabatia angularis
|
Rose-pink
|
|
|
|
|
|
1
|
| Sabatia campanulata
|
Slender Marsh-pink
|
|
|
|
|
|
1
|
| Sabatia stellaris
|
Sea-pink
|
|
|
|
|
|
2
|
Sagina decumbens
ssp. decumbens
|
Small-flowered Pearlwort
|
|
|
|
|
|
1
|
Sagittaria montevidensis
var. spongiosa
|
Spongy Arrowhead
|
|
|
|
|
|
2
|
| Sagittaria subulata
|
Strap-leaf Arrowhead
|
|
|
|
|
|
3
|
| Sagittaria teres
|
Quill-leaf Arrowhead
|
|
|
|
|
|
1
|
| Salicornia bigelovii
|
Dwarf Glasswort
|
|
|
|
|
|
2
|
| Salix cordata
|
Sand Dune Willow
|
|
|
|
|
|
2
|
| Salix herbacea
|
Dwarf Willow
|
|
|
|
|
|
1
|
| Salix pyrifolia
|
Balsam Willow
|
|
|
|
|
|
3
|
| Salix uva-ursi
|
Bearberry Willow
|
|
|
|
|
|
2
|
| Salvia lyrata
|
Lyre-leaf Sage
|
|
|
|
|
|
1
|
| Salvinia minima
|
Water-fern
|
|
|
|
|
|
4
|
| Sanguinaria canadensis
|
Bloodroot
|
|
|
|
|
|
4
|
| Sarracenia purpurea
|
Pitcher-plant
|
|
|
|
|
|
4
|
| Saxifraga aizoides
|
Yellow Mountain-saxifrage
|
|
|
|
|
|
2
|
Saxifraga oppositifolia
ssp. oppositifolia
|
Purple Mountain-saxifrage
|
|
|
|
|
|
1
|
Saxifraga paniculata
ssp. neogaea
|
White Mountain-saxifrage
|
|
|
|
|
|
1
|
| Scheuchzeria palustris
|
Pod Grass
|
|
|
|
|
|
3
|
| Schizaea pusilla
|
Curlygrass Fern
|
|
Schizaeaceae
|
|
|
|
1
|
| Schoenoplectus heterochaetus
|
Slender Bulrush
|
|
|
|
|
|
1
|
| Scirpus ancistrochaetus
|
Northeastern Bulrush
|
|
|
|
|
|
1
|
| Scirpus georgianus
|
Georgia Bulrush
|
|
|
|
|
|
1
|
| Scleria minor
|
Slender Nutrush
|
|
|
|
|
|
1
|
| Scleria muehlenbergii
|
Reticulate Nutrush
|
|
|
|
|
|
1
|
Scleria pauciflora
var. caroliniana
|
Few-flowered Nutrush
|
|
|
|
|
|
1
|
| Scleria reticularis
|
Reticulated Nutrush
|
|
|
|
|
|
3
|
| Scleria triglomerata
|
Whip Nutrush
|
|
|
|
|
|
1
|
| Scleria verticillata
|
Low Nutrush
|
|
|
|
|
|
1
|
Scutellaria incana
var. incana
|
Hoary Skullcap
|
|
|
|
|
|
1
|
| Scutellaria integrifolia
|
Hyssop-skullcap
|
|
|
|
|
|
1
|
Scutellaria parvula
var. parvula
|
Small Skullcap
|
|
|
|
|
|
3
|
| Selaginella eclipes
|
Hidden Spike-moss
|
|
|
|
|
|
1
|
| Sericocarpus linifolius
|
Flax-leaf Whitetop
|
|
|
|
|
|
2
|
| Sesuvium maritimum
|
Sea Purslane
|
|
|
|
|
|
1
|
Silene caroliniana
ssp. pensylvanica
|
Wild Pink
|
|
|
|
|
|
2
|
Silene caroliniana
ssp. pensylvanica
|
Wild Pink
|
|
|
|
|
|
4
|
| Sisyrinchium mucronatum
|
Michaux's Blue-eyed-grass
|
|
|
|
|
|
1
|
| Smallanthus uvedalius
|
Bear's-foot
|
|
|
|
|
|
1
|
| Smilax pseudochina
|
False China-root
|
|
|
|
|
|
1
|
| Smilax pulverulenta
|
Jacob's-ladder
|
|
|
|
|
|
1
|
| Solidago latissimifolia
|
Coastal Goldenrod
|
|
|
|
|
|
1
|
| Solidago leiocarpa
|
Alpine Goldenrod
|
|
|
|
|
|
2
|
Solidago sempervirens
var. mexicana
|
Seaside Goldenrod
|
|
|
|
|
|
1
|
Solidago simplex
var. monticola
|
Rand's Mountain Goldenrod
|
|
|
|
|
|
2
|
Solidago simplex
var. racemosa
|
Mountain Goldenrod
|
|
|
|
|
|
1
|
| Sparganium natans
|
Small Bur-reed
|
|
|
|
|
|
2
|
| Sphenopholis obtusata
|
Prairie Wedgegrass
|
|
|
|
|
|
1
|
| Sphenopholis pensylvanica
|
Swamp Oats
|
|
|
|
|
|
1
|
| Spinulum annotinum
|
Bristly Clubmoss
|
|
|
|
|
|
4
|
| Spinulum canadense
|
Northern Bristly Club-moss
|
|
|
|
|
|
1
|
| Spiraea septentrionalis
|
Mountain Meadow-sweet
|
|
|
|
|
|
1
|
Spiranthes casei
var. casei
|
Lady's-tresses
|
|
|
|
|
|
4
|
| Spiranthes cernua
|
Nodding Lady's-tresses
|
|
|
|
|
|
4
|
Spiranthes lacera
var. lacera
|
Slender Lady's-tresses
|
|
|
|
|
|
4
|
| Spiranthes lucida
|
Wide-leaved Lady's-tresses
|
|
|
|
|
|
4
|
| Spiranthes ochroleuca
|
Creamy Lady's-tresses
|
|
|
|
|
|
4
|
| Spiranthes romanzoffiana
|
Hooded Lady's-tresses
|
|
|
|
|
|
4
|
| Spiranthes tuberosa
|
Little Lady's-tresses
|
|
|
|
|
|
4
|
| Spiranthes vernalis
|
Spring Ladies'-tresses
|
|
|
|
|
|
1
|
| Sporobolus clandestinus
|
Rough Rush-grass
|
|
|
|
|
|
1
|
| Sporobolus heterolepis
|
Northern Dropseed
|
|
|
|
|
|
2
|
| Stachys hyssopifolia
|
Rough Hedge-nettle
|
|
|
|
|
|
2
|
| Stellaria longipes
|
Longstalk Starwort
|
|
|
|
|
|
2
|
| Strophostyles umbellata
|
Pink Wild Bean
|
|
|
|
|
|
1
|
Stuckenia filiformis
ssp. alpina
|
Slender Pondweed
|
|
|
|
|
|
1
|
Stuckenia filiformis
ssp. occidentalis
|
Sheathed Pondweed
|
|
|
|
|
|
1
|
| Suaeda linearis
|
Narrow-leaf Sea-blite
|
|
|
|
|
|
1
|
| Suaeda rolandii
|
Roland's Sea-blite
|
|
|
|
|
|
1
|
Subularia aquatica
var. americana
|
Water Awlwort
|
|
|
|
|
|
1
|
| Symphyotrichum boreale
|
Northern Bog Aster
|
|
|
|
|
|
2
|
| Symphyotrichum ciliolatum
|
Lindley's Aster
|
|
|
|
|
|
1
|
Symphyotrichum concolor
var. concolor
|
Silvery Aster
|
|
|
|
|
|
1
|
Symphyotrichum laeve
var. concinnum
|
Smooth Blue Aster
|
|
|
|
|
|
1
|
Symphyotrichum lanceolatum
var. interior
|
Tall White Aster
|
|
|
|
|
|
1
|
| Symphyotrichum ontarionis
|
Ontario Aster
|
|
|
|
|
|
3
|
Symphyotrichum oolentangiense
var. oolentangiense
|
Sky-blue Aster
|
|
|
|
|
|
1
|
Symphyotrichum subulatum
var. subulatum
|
Saltmarsh Aster
|
|
|
|
|
|
2
|
Symphyotrichum tenuifolium
var. tenuifolium
|
Slender Saltmarsh Aster
|
|
|
|
|
|
3
|
Thalictrum venulosum
var. confine
|
Veiny Meadow-rue
|
|
|
|
|
|
1
|
| Thaspium barbinode
|
Meadow-parsnip
|
|
|
|
|
|
1
|
| Thelypteris noveboracensis
|
New York Fern
|
|
|
|
|
|
4
|
Thelypteris palustris
var. pubescens
|
Marsh Fern
|
|
|
|
|
|
4
|
| Thelypteris simulata
|
Massachusetts Fern
|
|
|
|
|
|
4
|
Tilia american
var. heterophylla
|
White Basswood
|
|
|
|
|
|
1
|
| Tipularia discolor
|
Cranefly Orchid
|
|
|
|
|
|
1
|
| Triantha glutinosa
|
Sticky False Asphodel
|
|
|
|
|
|
1
|
| Trichomanes intricatum
|
Appalachian Trichomanes
|
|
Hymenophyllaceae
|
|
|
|
1
|
Trichophorum cespitosum
ssp. cespitosum
|
Deer's Hair Sedge
|
|
|
|
|
|
2
|
| Trichophorum clintonii
|
Clinton's Clubrush
|
|
|
|
|
|
1
|
| Trichostema brachiatum
|
False-pennyroyal
|
|
|
|
|
|
3
|
| Trichostema setaceum
|
Tiny Blue-Curls
|
|
|
|
|
|
1
|
| Triglochin palustre
|
Marsh Arrow-grass
|
|
|
|
|
|
2
|
| Trillium cernuum
|
Nodding Trillium
|
|
|
|
|
|
4
|
| Trillium erectum
|
Purple Trillium
|
|
|
|
|
|
4
|
| Trillium flexipes
|
Nodding Trillium
|
|
|
|
|
|
1
|
| Trillium grandiflorum
|
White Trillium
|
|
|
|
|
|
4
|
| Trillium sessile
|
Toad-shade
|
|
|
|
|
|
1
|
| Trillium undulatum
|
Painted Trillium
|
|
|
|
|
|
4
|
| Triphora trianthophora
|
Nodding Pogonia
|
|
|
|
|
|
2
|
| Tripsacum dactyloides
|
Northern Gamma Grass
|
|
|
|
|
|
2
|
| Trisetum melicoides
|
Melic-oats
|
|
|
|
|
|
1
|
| Trollius laxus
|
Spreading Globeflower
|
|
|
|
|
|
3
|
| Ulmus thomasii
|
Cork Elm
|
|
|
|
|
|
2
|
| Utricularia geminiscapa
|
Hiddenfruit Bladderwort
|
|
|
|
|
|
3
|
| Utricularia juncea
|
Rush Bladderwort
|
|
|
|
|
|
1
|
| Utricularia minor
|
Lesser Bladderwort
|
|
|
|
|
|
3
|
| Utricularia radiata
|
Small Floating Bladderwort
|
|
|
|
|
|
2
|
| Utricularia striata
|
Fibrous Bladderwort
|
|
|
|
|
|
2
|
| Utricularia subulata
|
Zigzag Bladderwort
|
|
|
|
|
|
3
|
| Uvularia puberula
|
Mountain Bellwort
|
|
|
|
|
|
1
|
| Vaccinium boreale
|
High-mountain Blueberry
|
|
|
|
|
|
2
|
| Vaccinium cespitosum
|
Dwarf Blueberry
|
|
|
|
|
|
1
|
| Vaccinium uliginosum
|
Bog Bilberry
|
|
|
|
|
|
3
|
| Valeriana uliginosa
|
Marsh Valerian
|
|
|
|
|
|
1
|
| Valerianella chenopodiifolia
|
Goosefoot Corn-salad
|
|
|
|
|
|
1
|
| Valerianella umbilicata
|
Navel-fruited Corn-salad
|
|
|
|
|
|
1
|
Vernonia gigantea
ssp. gigantea
|
Tall Ironweed
|
|
|
|
|
|
1
|
Veronica peregrina
ssp. xalapensis
|
Neckweed
|
|
|
|
|
|
3
|
| Veronicastrum virginicum
|
Culver's-root
|
|
|
|
|
|
2
|
Viburnum dentatum
var. venosum
|
Southern Arrowwood
|
|
|
|
|
|
2
|
| Viburnum edule
|
Squashberry
|
|
|
|
|
|
2
|
Viburnum nudum
var. nudum
|
Possum-haw
|
|
|
|
|
|
1
|
| Viola bicolor
|
Field Pansy
|
|
|
|
|
|
1
|
| Viola brittoniana
|
Coast Violet
|
|
|
|
|
|
1
|
| Viola hirsutula
|
Southern Wood Violet
|
|
|
|
|
|
1
|
| Viola nephrophylla
|
Northern Bog Violet
|
|
|
|
|
|
1
|
| Viola novae-angliae
|
New England Violet
|
|
|
|
|
|
1
|
| Viola pedata
|
Bird's-foot Violet
|
|
|
|
|
|
3
|
| Viola pedata
|
Bird's-foot Violet
|
|
|
|
|
|
4
|
| Viola primulifolia
|
Primrose-leaf Violet
|
|
|
|
|
|
2
|
| Vitis vulpina
|
Winter Grape
|
|
|
|
|
|
1
|
| Vittaria appalachiana
|
Appalachian Shoestring Fern
|
|
Pteridaceae
|
|
|
|
1
|
| Vittaria appalachiana
|
Grass Fern (also in Engangered list)
|
|
|
|
|
|
4
|
| Woodsia alpina
|
Alpine Cliff Fern
|
|
Woodsiaceae
|
|
|
|
1
|
| Woodsia glabella
|
Smooth Cliff Fern
|
|
Woodsiaceae
|
|
|
|
1
|
| Woodsia ilvensis
|
Rusty Woodsia
|
|
|
|
|
|
4
|
Woodsia obtusa
ssp. obtusa
|
Blunt-lobed Woodsia
|
|
|
|
|
|
4
|
| Woodwardia areolata
|
Netted Chain Fern
|
|
|
|
|
|
4
|
| Woodwardia virginica
|
Virginia Chain Fern
|
|
|
|
|
|
4
|
| Xyris smalliana
|
Large Yellow-eyed-grass
|
|
|
|
|
|
2
|
