| Abies balsamea (L.) Mill. | Balsam Fir |
| Acer negundo L. | Manitoba Maple |
| Acer spicatum Lam. | Mountain Maple |
| Achillea millefolium L. | Common Yarrow |
| Achillea millefolium L. var.lanulosa(Nutt.) Piper | Common Yarrow |
| Actaea rubra (Ait.) Willd. | Red Baneberry |
| Actaea rubra (Ait.) Willd. f.neglecta (Gillman) Robins. | White Baneberry |
| Agastache foeniculum (Pursh) Ktze. | Giant Hyssop |
| Agrimonia striata Michx. | Agrimony |
| Agrostis stolonifera L. | Red Top |
| Alisma plantago-aquatica L. | Water Plantain |
| Alnus crispa (Ait.) Pursh | Green Alder |
| Alnus rugosa (Du Roi) Spreng. | Speckled Alder |
| Amelanchier alnifolia Nutt. | Saskatoon |
| Amerorchis rotundifolia (Banks) Hulten | Small Round-leaved Orchid |
| Amphicarpa bracteata (L.) Fern | Hog-peanut |
| Anaphalis margaritaceae (L.) Clarke | Pearly Everlasting |
| Andromeda glaucophylla Link | Bog Rosemary |
| Andromeda polifolia L. | Dwarf Bog Rosemary |
| Androsace septentrionalis L. | Pygmy-flower |
| Anemone cylindrica Gray | Long-fruited Anemone |
| Anemone nemorosa L. | European Wood Anemone |
| Anemone patens L. | Prairie Crocus |
| Anemone quinquefolia L. var.interior Fern. | Wood Anemone |
| Antennaria microphylla Rydb. | Small-leaved Pussy-toes |
| Apocynum androsaemifolium L. var.incanum A. C. | Spreading Dogbane |
| Aquilegia canadensis L. | Wild Columbine |
| Arabis divaricarpa Nels. | Purple Rock Cress |
| Arabis drummondii Gray | Drummond's Rock Cress |
| Aralia nudicaulis L. | Wild Sarsaparilla |
| Arceuthobium americanum Nutt. | Dwarf Mistletoe |
| Arctostaphylos uva-ursi (L.) Spreng. | Bearberry |
| Arenaria laterflora L. | Blunt-leaved Sandwort |
| Arenaria stricta Michx. var.dawsonensis (Britt.) Scoggan | Dawson Sandwort |
| Arethusa bulbosa L. | Dragon's Mouth Orchid |
| Armoracia rusticana (Lam.) Gaertn., Mey., & Scherb. | Horseradish |
| Artemisia campestris L. | Plains Wormwood |
| Artemisia ludoviciana Nutt. | Prairie Sage |
| Asarum canadense L. | Wild Ginger |
| Asclepias incarnata L. | Swamp Milkweed |
| Asclepias ovalifolia Dcne. | Dwarf Milkweed |
| Asclepias speciosa Torr. | Showy Milkweed |
| Aster borealis (T.&G.) Provencher | Marsh or Rush Aster |
| Aster lateriflorus (L.) Britt. | Calico Aster |
| Aster puniceus L. | Purple-stemmed Aster |
| Aster umbellatus Mill. | Flat-topped White Aster |
| Astragalus canadensis L. | Canadian Milk Vetch |
| Berteroa incana (L.) DC. | Hoary Alyssum |
| Betula glandulosa Michx. | Dwarf Birch |
| Betula occidentalis Hook.. | Water Birch |
| Betula papyrifera Marsh. | Paper Birch |
| Betula pumila L. var.glandulifera Regel | Swamp Birch |
| Bidens frondosa L. | Common Beggarticks |
| Botrychium virginianum (L.) Sw. | Virginia Grape Fern |
| Brassica rapa L. | Field Mustard |
| Bromus ciliatus L. | Fringed Brome |
| Bromus inermis Leyss. | Smooth Brome |
| Bromus porteri (Coult.) Nash | Porter's Chess |
| Calamagrostis neglecta (Ehrh.) Gaertn., Mey. & Scherb. | Narrow Reed Grass |
| Calopogon pulchellus (Salisb.) R.Br. | Swamp-pink; Grass-pink |
| Caltha palustris L. | Marsh Marigold |
| Calypso bulbosa ( L.) Oakes | Fairy or Venus-slipper |
| Campanula aparinoides Pursh | Marsh Bellflower |
| Campanula rotundifolia L. | Harebell |
| Cardamine pratensis L. | Meadow Bitter Cress |
| Carex aquatilis Wahl. | Water Sedge |
| Carex aurea Nutt. | Golden Sedge |
| Carex bebbii Olney | Bebb's Sedge |
| Carex capillaris L. | Hair-like Sedge |
| Carex concinna R.Br. | Beautiful Sedge |
| Carex disperma Dewey | Two-seeded Sedge |
| Carex eburnea Boott | Bristle-leaved Sedge |
| Carex gracillima Schwein. | Slender Sedge |
| Carex gynocrates Wormskj. | Northern Bog Sedge |
| Carex interior Bailey | Inland Sedge |
| Carex lacustris Willd. | Lakeshore Sedge |
| Carex lasiocarpa Ehrh. | Hairy-fruited Sedge |
| Carex lasiocarpa Ehrh. var.americana Fern | Hairy-fruited Sedge |
| Carex leptalea Wahl. | Bristle-stalked Sedge |
| Carex limosa L. | Mud Sedge |
| Carex peckii Howe | Peck's Sedge |
| Carex prairea Dew. | Prairie Sedge |
| Carex pseudo-cyperus L. | Cyperus-like Sedge |
| Carex retrorsa Schwein. | Turned Sedge |
| Carex scirpoidea Michx. | Rush-like Sedge |
| Carex sterilis Willd. | Sterile Sedge |
| Carex vaginata Tausch. | Sheathed Sedge |
| Carex viridula Michx. | Green Sedge |
| Carum carvi L. | Caraway |
| Ceanothus herbaceus Raf. | New Jersey Tea |
| Chenopodium capitatum (L.) Asch. | Strawberry Blite |
| Cicuta maculata L. | Water Hemlock |
| Circaea alpina L. | Small Enchanter's Nightshade |
| Cirsium arvense (L.) Scop. | Canada Thistle |
| Cirsium muticum Michx. | Milky Swamp Thistle |
| Cladium mariscoides (Muhl.) Torr. | Twig Rush |
| Clintonia borealis (Ait.) Raf. | Bluebead Lily |
| Coeloglossum viride Hartman | Long-bracted Orchid |
| Comandra umbellata (L.) Nutt. | Bastard Toadflax |
| Comandra umbellata (L.) Nutt. var.pallida (DC) Jones | Pale Commandra |
| Convolvulus sepium L. | Hedge Bindweed |
| Coptis trifolia (L.) Salisb. | Goldthread |
| Corallorhiza maculata Raf. | Spotted Coralroot |
| Corallorhiza striata Lindl. | Striped Coralroot |
| Corallorhiza trifida Chat. | Early Coralroot |
| Cornus canadensis L. | Bunchberry |
| Cornus stolonifera Michx. | Red-osier Dogwood |
| Corylus americana Walt. | American Hazelnut |
| Corylus cornuta Marsh. | Beaked Hazelnut |
| Crataegus rotundifolia Moensch | Round-leaved Hawthorn |
| Crepis tectorum L. | Narrow-leaved Hawk's-beard |
| Cynoglossum boreale Fern. | Wild Comfrey |
| Cypripedium acaule Ait. | Moccasin Flower; Pink/Stemless Lady's-slipper |
| Cypripedium arietinum R.Br. | Ram's-head Lady's-slipper |
| Cypripedium calceolus L. var.pubescens (Willd.) Correll | Large Yellow Lady's-slipper |
| Cypripedium calceolus L. var.parviflorum (Salisb.) Fern. | Small Yellow Lady's-slipper |
| Cypripedium reginae Walt. | Showy Lady's-slipper |
| Diervilla lonicera Mill. | Bush Honeysuckle |
| Drosera anglica Huds. | Oblong-leaved Sundew |
| Drosera linearis Goldie | Slender-leaved Sundew |
| Dryopteris carthusiana (Vill.) H. P. Fuchs | Spinulose Wood Fern |
| Echinocystis lobata (Michx.) T.&G. | Wild Cucumber |
| Eleocharis palustris (L.) R.&S. | Creeping Spike-rush |
| Elymus canadensis L. | Canada Wild Rye (**) |
| Empetrum nigrum L. | Black Crowberry |
| Epilobium angustifolium L. | Fireweed |
| Epilobium palustre L. | Marsh Willowherb |
| Epilobium watsonii Barbey | Northern Willowherb |
| Equisetum arvense L. | Common Horsetail |
| Equisetum fluviatile L. | Swamp Horsetail |
| Equisetum hyemale L. ssp. affine (Engelm.) Stone | Common Scouring-rush |
| Equisetum pratense Ehrh. | Meadow Horsetail |
| Equisetum sylvaticum L. | Woodland Horsetail |
| Equisetum variegatum Schleich. | Variegated Horsetail |
| Erigeron canadensis L. | Horseweed |
| Erigeron philadelphicus L. | Philadelphia Fleabane |
| Erigeron strigosus Muhl. | Lesser Daisy Fleabane |
| Eriophorum angustifolium Honckeny | Tall Cotton-grass |
| Eriophorum vaginatum L. ssp.spissum (Fern.) Hult. | Sheathed Cotton-grass |
| Eupatorium purpureum L. var.maculatum (L.) Darl. | Spotted Joe-Pye-Weed |
| Fragaria virginiana Dcne. | Smooth Wild Strawberry |
| Fraxinus nigra Marsh. | Black Ash |
| Fraxinus pennsylvanica Marsh. | Green Ash |
| Galium boreale L. | Northern Bedstraw |
| Galium triforum Michx. | Sweet-scented Bedstraw |
| Gentiana andrewsii Griseb. | Closed Gentian |
| Gentianella crinita (Froel.) Don ssp.macounii (Holm.) Gillett | Fringed Gentian |
| Geocaulon lividum (Richards.) Fern. | Northern Comandra |
| Glyceria striata (Lam.) Hitchc. | Fowl Manna Grass |
| Goodyera repens (L.) R.Br. var.ophiodes Fern. | Lesser Rattlesnake Plantain |
| Goodyera tesselata Lodd.. | Tesselated Rattlesnake Plantain |
| Gymnocarpium dryopteris (L.) Newm. | Oak Fern |
| Helenia deflexa (Sm.) Griseb. | Spurred Gentian |
| Helianthus maximilianii Schrad. | Narrow-leaved Sunflower |
| Heracleum lanatum Michx. | Cow Parsnip |
| Heuchera richardsonii R.Br. | Alumroot |
| Hieracium scabriusculum Schwein | Hawkweed |
| Hierochloe odorata (L.) Beauv. | Sweet Grass |
| Humulus lupulus L. | Common Hop |
| Impatiens capensis Meerb. | Spotted Touch-me-not |
| Iris versicolor L. | Blue Flag |
| Juncus alpinus Vill. | Alpine Rush |
| Juncus balticus Willd. | Baltic Rush |
| Juncus dudleyi Weig. | Dudley's Rush |
| Juncus nodosus L. | Knotted Rush |
| Juniperus communis L. | Low Juniper |
| Kalmia polifolia Wang. | Pale Bog-laurel |
| Lactuca scariola L. | Lobed Prickly Lettuce |
| Lappula myosotis Moench | Bluebur |
| Larix laricina (Du Roi) Koch | Tamarack |
| Lathyrus ochroleucus Hook. | Cream-coloured Vetchling |
| Lathyrus venosus Muhl. var.intonsus Butt. & St. John | Wild Peavine |
| Ledum groenlandicum Oeder. | Labrador Tea |
| Lemna minor L. | Duckweed |
| Linaria vulgaris Hill | Butter and Eggs |
| Linnaea borealis L. | Twinflower |
| Liparis loeselii (L.) Richard | Loesel's Twayblade |
| Listera cordata (L.) R.Br. | Heart-leaved Twayblade |
| Lithospermum canescens (Michx.) Lehm. | Hoary Puccoon |
| Lobelia kalmii L. | Kalm's Lobelia |
| Lonicera dioica L. | Twining Honeysuckle |
| Lonicera oblongifolia (Goldie) Hook. | Swamp Fly Honeysuckle |
| Lonicera villosa (Michx.) R.&S. | Blue Fly Honeysuckle |
| Lycopodium annotinum L. | Stiff Clubmoss |
| Lycopus asper Greene | Western Water-horehound |
| Lysimachia thyrsiflora L. | Tufted Loosestrife |
| Lythrum salicaria L. | Purple Loosestrife |
| Maianthemum canadense Desf. var.interius Fern. | Two-leaved Solomon's Seal |
| Malaxis monophyllus (L.) Sw. | White Adder's-mouth |
| Malaxis paludosa (L.) Sw. | Bog Adder's-mouth |
| Malaxis unifolia Michx. | Green Adder's-mouth |
| Matteuccia struthiopteris (L.) Todaro | Ostrich Fern |
| Medicago lupulina L. | Black Medic |
| Medicago sativa L. | Alfalfa |
| Melilotus alba Desr. | White Sweet Clover |
| Melilotus officinale (L.) Pallas | Yellow Sweet Clover |
| Menispermum canadense L. | Moonseed |
| Mentha arvensis L. var.villosa (Benth.) Stewart | Field Mint |
| Menyanthes trifoliata L. | Buck Bean |
| Mitella nuda L. | Bishop's Cap |
| Monarda fistulosa L. | Wild Bergamot |
| Monenses uniflora (L.) Gray | One-flowered Wintergreen |
| Monotropa uniflora L. | Indian Pipe |
| Muhlenbergia glomerata (Willd.) Trin. var.cinnoides (Link.) Herm. | Bog Muhly |
| Myrica gale L. | Sweet Gale |
| Nuphar variegatum Engelm. | Yellow Pond Lily |
| Oenothera biennis L. | Evening Primrose |
| Oryzopsis asperifolia Michx. | Mountain Rice Grass |
| Oryzopsis pungens (Torr.) Hitchc. | Northern Rice Grass |
| Osmorhiza longistilis (Torr.) DC. | Smooth Sweet Cicely |
| Oxycoccus microcarpus Turcz. | Small Bog Cranberry |
| Parnassia palustris L. | Northern Grass-of-Parnassus |
| Parnassia palustris L. var. neogaea Fern. | Grass-of-Parnassus |
| Parthenocissus inserta (Kerner) K. Fritsch | Large-toothed Virginia Creeper |
| Pastinaca sativa L. | Parsnip |
| Pedicularis canadensis L. | Common Lousewort |
| Pedicularis lanceolata Michx. | Swamp Lousewort |
| Petasites palmatus (Ait.) Gray | Palmate-leaved Coltsfoot |
| Petasites sagittatus (Pursh) Gray | Arrow-leaved Coltsfoot |
| Phleum pratense L. | Timothy |
| Picea mariana (Mill.) BSP | Black Spruce |
| Pinguicula vulgaris L. | Common Butterwort |
| Pinus banksiana Lamb. | Jack Pine |
| Platanthera dilitata (Pursh) Lindl. ex Beck | Tall Leafy White Orchid |
| Platanthera hookeri (Torr.) Lindl. | Hooker's Orchid |
| Platanthera hyperborea Lindley | Tall Leafy Green Orchid |
| Platanthera obtusata Lindley | Blunt Leaf Orchid |
| Platanthera orbiculata (Pursh) Lindley | Large Round Leaf Orchid |
| Poa compressa L. | Canada Blue Grass |
| Pogonia ophioglossoides (L.) Ker | Rose Pogonia |
| Polygala paucifolia Willd. | Fringed Milkwort |
| Polygala paucifolia Willd. f.alba Wheelcock | White Fringed Milkwort |
| Polygala senega L. | Seneca Snakeroot |
| Polygonatum biflorum (Walt.) Ell. | Common Solomon's Seal |
| Polygonum amphibium L. var.stipulaceum (Coleman) Fern. | Water Smartweed |
| Polygonum lapathifolium L. | Common Lady's Thumb |
| Populus balsamifera L. | Balsam Poplar, Black Poplar |
| Populus tremuloides Michx. | Trembling Aspen, White Poplar |
| Potamogeton natans L. | Pondweed |
| Potentilla argentea L. | Silvery Cinquefoil |
| Potentilla arguta Pursh | White Cinquefoil |
| Potentilla fruticosa L. | Shrubby Cinquefoil |
| Potentilla gracilis Dougl. | Graceful Cinquefoil |
| Potentilla norvegica L. | Rough Cinquefoil |
| Potentilla tridentata Ait. | Three-toothed Cinquefoil |
| Prenanthes alba L. | White Lettuce |
| Primula egaliksensis Wormsk. | Greenland Primrose |
| Prunus nigra Ait. | Wild Plum |
| Prunus pensylvanica L.f. | Pin Cherry |
| Prunus virginiana L. | Chokecherry |
| Pteridium aquilinum (L.) Kuhn | Bracken Fern |
| Pyrola asarifolia Michx. | Common Pink Wintergreen |
| Pyrola rotundifolia L. | Round-leaved Wintergreen |
| Quercus macrocarpa Michx. | Bur Oak |
| Ranunculus gmelinii DC. var.hookeri (Don) Benson | Small Yellow Water Crowfoot |
| Ranunculus macounii Britt. | Macoun's Buttercup |
| Ranunculus pedatifidus Sm. var.cardiophyllus (Hook.) Britt. | Heart-leaved Butercup |
| Rhamnus alnifolia L'Her. | Alder-leaved Buckthorn |
| Rhus glabra L. | Smooth Sumac |
| Rhus radicans L. | Poison Ivy |
| Rhynchospora alba (L.) Vahl. | White Beak-rush |
| Rhynchospora capillacea Torr. | Slender Beak-rush |
| Ribes glandulosum Grauer | Skunk Currant |
| Ribes hudsonianum Richards. | Northern Wild Black Currant |
| Ribes oxyacanthoides L. var.hirtellum (Michx.) Scoggan | Bristly Wild Gooseberry |
| Ribes triste Pall. | Wild Red Currant |
| Rosa acicularis Lindl. | Prickly Rose |
| Rosa blanda Ait. | Smooth Rose |
| Rubus chamaemorus L. | Cloudberry |
| Rubus idaeus L. | Raspberry |
| Rubus pubescens Raf. | Dewberry |
| Rumex crispus L. | Curly-leaf Dock |
| Sagittaria latifolia Willd. | Broad-leaved Arrowhead |
| Salix bebbiana Sarg. | Bebb'sWillow |
| Salix candida Flugge. | Hoary Willow |
| Salix discolor Muhl. | Pussy Willow |
| Salix glauca L. | SmoothWillow |
| Salix pellita Anderss. | Satin Willow |
| Salix pentandra L. | Bay-leaved Willow (**) |
| Salix petiolaris Sm. | Slender Willow |
| Salix phylicifolia L. var.planifolia (Pursh) Hiitonen | Tea-leaved Willow |
| Salix serissima (Bailey) Fern. | Autumn Willow |
| Sanicula marilandica L. | Black Snakeroot |
| Saponaria officinalis L. | Soapwort |
| Sarracenia purpurea L. | Pitcher Plant |
| Scirpus caespitosus L. | Tufted Bulrush |
| Scirpus hudsonianus (Michx.) Fern. | Alpine Cotton -grass |
| Scirpus lacustris L. ssp.validus(Vahl) Koyama | Great Bulrush |
| Scirpus microcarpus Presl. | Small-fruited Bulrush |
| Scutellaria epilobiifolia Hamilton | Common Skullcap |
| Selaginella rupestris (L.) Spring | Rock Spike-moss |
| Senecio aureus L. | Golden Ragwort |
| Senecio pauperculus Michx. | Ragwort |
| Shepherdia canadensis (L.) Nutt. | Soapberry |
| Silene cserei Baumg. | Smooth Catchfly |
| Sisyrinchium montanum Greene | Blue-eyed Grass |
| Sium sauve Walt. | Water Parsnip |
| Smilacina stellata (L.) Desf. | Star-flowered Solomon's Seal |
| Smilacina trifolia (L.) Desf. | Three-leaved Solomon's Seal |
| Smilax herbacea L. | Carrion Flower |
| Solidago canadensis L. var.canadensis | Canada Goldenrod |
| Solidago canadensis L.var.gilvocanescens Rydb. | Canescent Goldenrod |
| Solidago gigantea Ait. | Late Goldenrod |
| Solidago graminifolia (L.) Salsib. | Flat-topped Goldenrod |
| Solidago missouriensis Nutt. | Low Goldenrod |
| Solidago nemoralis Ait. | Showy Goldenrod |
| Solidago uliginosa Nutt. | Marsh Goldenrod |
| Sonchus arvensis L. | Perennial Sow Thistle |
| Sorbus decora (Sarg.) Schneid. | Mountain Ash |
| Spiraea alba Du Roi | Narrow-leaved Meadowsweet |
| Spiranthes lacera Raf. | Slender Ladies'-tresses |
| Spiranthes romanzoffiana Cham. | Hooded Ladies'-tresses |
| Steironema ciliatum (L.) Raf. | Fringed Loosestrife |
| Streptopus roseus Michx. var.perspectus Fassett | Rose Mandarin |
| Symphoricarpos occidentalis Hook. | Western Snowberry |
| Thalictrum dasycarpum Fisch. & Lall. | Tall Meadow Rue |
| Thalictrum sparsiflorum Turcz. | Few-flowered Meadow Rue |
| Thuja occidentalis L. | Eastern White Cedar |
| Tofieldia glutinosa (Michx.) Pers. | Sticky Asphodel |
| Tragopogon dubius Scop. | Yellow Goat's Beard |
| Trientalis borealis Raf. | Northern Starflower |
| Trifolium repens L. | White Clover |
| Triglochin maritima L. | Seaside Arrow-grass |
| Triglochin palustris L. | Marsh Arrow-grass |
| Trillium cernuum L. | Nodding Trillium |
| Typha angustifolia L. | Narrow-leaved Cattail |
| Typha latifolia L. | Common Cattail |
| Urtica dioica L. | Stinging Nettle |
| Utricularia cornuta Michx. | Horned Bladderwort |
| Utricularia intermedia Hayne | Flat-leaved Bladderwort |
| Utricularia vulgaris L. | Common Bladderwort |
| Vaccinium angustifolium Ait. | Blueberry |
| Vaccinium vitis-idaea L. | Dry-ground Cranberry |
| Verbascum thapsus L. | Common Mullein |
| Viburnum lentago L. | Nannyberry |
| Viburnum opulus L. var.americanum Ait | High-bush Cranberry |
| Viburnum rafinesquianum Schultes | Downy Arrow-wood |
| Vicia americana Muhl. | American Vetch |
| Viola adunca Sm. | Early Blue Violet |
| Viola blanda Willd. | Sweet White Violet |
| Viola nephrophylla Greene | Northern Bog Violet |
| Viola palustris L. | Marsh Violet |
| Viola pubescens Ait. | Downy Yellow Violet |
| Viola renifolia Gray | Kidney-leaved Violet |
| Zizia aptera (Gray) Fern. | Heart-leaved Alexanders |
| Zizia aurea (L.) Koch | Golden Alexanders |
Also observed were:
Chara sp. an unusual alga which grows in wet areas high in calcium and magnesium; and
Club lichens: Cladonia spp. and Cladina spp.
| Arethusa bulbosa L. | Dragon's Mouth Orchid |
| Calopogon pulchellus (Salisb.) R.Br. | Swamp-pink; Grass-pink |
| Carex gracillima Schwein. | Slender Sedge |
| Carex sterilis Willd. | Sterile Sedge |
| Ceanothus herbaceus Raf. | New Jersey Tea |
| Cladium mariscoides (Muhl.) Torr. | Twig Rush |
| Cypripedium arietinum R.Br. | Ram's-head Lady's-slipper |
| Drosera anglica Huds. | Oblong-leaved Sundew |
| Drosera linearis Goldie | Slender-leaved Sundew |
| Goodyera tesselata Lodd.. | Tesselated Rattlesnake Plantain |
| Malaxis monophyllus (L.) Sw. | White Adder's-mouth |
| *Malaxis paludosa (L.) Sw. | Bog Adder's-mouth |
| Malaxis unifolia Michx. | Green Adder's-mouth |
| Platanthera hookeri (Torr.) Lindl. | Hooker's Orchid |
| Pogonia ophioglossoides (L.) Ker | Rose Pogonia |
| Potentilla gracilis Dougl. | Graceful Cinquefoil |
| Primula egaliksensis Wormsk. | Greenland Primrose |
| Pyrola rotundifolia L. | Round-leaved Wintergreen |
| Rhynchospora alba (L.) Vahl. | White Beak-rush |
| Rhynchospora capillacea Torr. | Slender Beak-rush |
| Solidago uliginosa Nutt. | Marsh Goldenrod |
| Utricularia cornuta Michx. | Horned Bladderwort |
Also observed was: Chara sp. a rare alga which grows in wet areas high in calcium and magnesium.
* nationally rare species
| Amerorchis rotundifolia (Banks) Hulten | Small Round-leaved Orchid |
| Arethusa bulbosa L. | Dragon's Mouth Orchid |
| Calopogon pulchellus (Salisb.) R.Br. | Swamp-pink; Grass-pink |
| Calypso bulbosa ( L.) Oakes | Fairy or Venus-slipper |
| Coeloglossum viride Hartman | Long-bracted Orchid |
| Corallorhiza maculata Raf. | Spotted Coralroot |
| Corallorhiza striata Lindl. | Striped Coralroot |
| Corallorhiza trifida Chat. | Early Coralroot |
| Cypripedium acaule Ait. | Moccasin Flower; Pink/Stemless L-s |
| Cypripedium arietinum R.Br. | Ram's-head Lady's-slipper |
| Cypripedium calceolus L. var.parviflorum (Salisb.) Fern. | Small Yellow Lady's-slipper |
| Cypripedium calceolus L. var.pubescens (Willd.) Correll | Large Yellow Lady's-slipper |
| Cypripedium reginae Walt. | Showy Lady's-slipper |
| Goodyera repens (L.) R.Br. var.ophiodes Fern. | Lesser Rattlesnake Plantain |
| Goodyera tesselata Lodd.. | Tesselated Rattlesnake Plantain |
| Liparis loeselii (L.) Richard | Loesel's Twayblade |
| Listera cordata (L.) R.Br. | Heart-leaved Twayblade |
| Malaxis monophyllus (L.) Sw. | White Adder's-mouth |
| Malaxis paludosa (L.) Sw. | Bog Adder's-mouth |
| Malaxis unifolia Michx. | Green Adder's-mouth |
| Platanthera dilitata (Pursh) Lindl. ex Beck | Tall Leafy White Orchid |
| Platanthera hookeri (Torr.) Lindl. | Hooker's Orchid |
| Platanthera hyperborea Lindley | Tall Leafy Green Orchid |
| Platanthera obtusata Lindley | Blunt Leaf Orchid |
| Platanthera orbiculata (Pursh) Lindley | Large Round-Leaf Orchid |
| Pogonia ophioglossoides (L.) Ker | Rose Pogonia |
| Spiranthes lacera Raf. | Slender Ladies'-tresses |
| Spiranthes romanzoffiana Cham. | Hooded Ladies'-tresses |