Below is a working checklist of Mount Desert Island's eudicots. Please send corrections and updates to info@vfthomas.com. Photographs are welcome. Thank you.
| Family | Genus | Specific Epithet | authority | Sub-specific Epithet | authority | common name or hybrid formula | Sources (full citation given after this table) |
| Actinidiaceae | Actinidia | arguta | (Sieb. & Zucc.) Planch. ex Miq. |   |   | taravine | Greene et al. (2005) |
| Adoxaceae | Sambucus | nigra | L. |   |   | black elderberry | Greene et al. (2005) as Sambucus canadensis |
| Adoxaceae | Sambucus | racemosa | L. |   |   | red elderberry | Greene et al. (2005) as Sambucus racemosa ssp. pubens |
| Adoxaceae | Viburnum | acerifolium | L. |   |   | maple-leaved viburnum | Greene et al. (2005) |
| Adoxaceae | Viburnum | dentatum | L. | var. lucidum | Ait. | smooth arrow-wood | Greene et al. (2005) |
| Adoxaceae | Viburnum | lantanoides | Michx. |   |   | hobblebush | Greene et al. (2005); verified for MDI by Champlainer (TFV) |
| Adoxaceae | Viburnum | lentago | L. |   |   | nannyberry | Greene et al. (2005) |
| Adoxaceae | Viburnum | nudum | L. | var. cassinoides | (L.) Torr. & Gray | withe-rod | Greene et al. (2005); verified for MDI by Champlainer (TFV) |
| Adoxaceae | Viburnum | opulus | L. | ssp. opulus |   | highbush-cranberry | Greene et al. (2005) |
| Amaranthaceae | Amaranthus | hybridus | L. | ssp. hybridus |   | green amaranth | Greene et al. (2005) |
| Amaranthaceae | Amaranthus | retroflexus | L. |   |   | red-rooted amaranth | Greene et al. (2005) |
| Amaranthaceae | Atriplex | acadiensis | Tascher. |   |   | maritime orach | Greene et al. (2005) |
| Amaranthaceae | Atriplex | glabriuscula | Edmondston |   |   | bracted orach | Greene et al. (2005) |
| Amaranthaceae | Atriplex | patula | L. |   |   | spearscale orach | Greene et al. (2005) but see Haines's Flora Novae Angliae (in prep.) |
| Amaranthaceae | Atriplex | prostrata | Boucher ex DC. |   |   | hastate-leaved orach | Greene et al. (2005) |
| Amaranthaceae | Atriplex | subspicata | (Nutt.) Rydb. |   |   | saline orach | Greene et al. (2005) |
| Amaranthaceae | Chenopodium | album | L. |   |   | white goosefoot | Greene et al. (2005) |
| Amaranthaceae | Chenopodium | glaucum | L. | ssp. ? |   | oak-leaved goosefoot | Greene et al. (2005) |
| Amaranthaceae | Salicornia | depressa | Standl. |   |   | common glasswort | Greene et al. (2005) |
| Amaranthaceae | Suaeda | calceoliformis | (Hook.) Moq. |   |   | American sea-blite | Greene et al. (2005) |
| Amaranthaceae | Suaeda | linearis | (Ell.) Moq. |   |   | annual sea-blite | Greene et al. (2005) |
| Amaranthaceae | Suaeda | maritima | (L.) Dumort | ssp. maritima |   | herbaceous sea-blite | Greene et al. (2005) |
| Anacardiaceae | Rhus | hirta | (L.) Sudworth |   |   | staghorn sumac | Greene et al. (2005); verified for MDI by Champlainer (TFV) |
| Anacardiaceae | Toxicodendron | radicans | (L.) Kuntze | ssp. radicans |   | poison-ivy | Greene et al. (2005) |
| Anacardiaceae | Toxicodendron | rydbergii | (Small ex Rydb.) Greene |   |   | western poison-ivy | Greene et al. (2005) |
| Apiaceae | Aegopodium | podagraria | L. |   |   | bishop's goutweed | garden escape observed by Champlainer (TFV) |
| Apiaceae | Angelica | lucida | L. |   |   | sea coast angelica | Greene et al. (2005) |
| Apiaceae | Aralia | hispida | Vent. |   |   | bristly sarsaparilla | Greene et al. (2005) |
| Apiaceae | Aralia | nudicaulis | L. |   |   | wild sarsaparilla | Greene et al. (2005) |
| Apiaceae | Aralia | racemosa | L. | ssp. racemosa |   | American spikenard | Greene et al. (2005) |
| Apiaceae | Carum | carvi | L. |   |   | caraway | Greene et al. (2005) |
| Apiaceae | Cicuta | bulbifera | L. |   |   | bulblet-bearing water-hemlock | Greene et al. (2005) |
| Apiaceae | Cicuta | maculata | L. | ssp. maculata |   | spotted water-hemlock | Greene et al. (2005) |
| Apiaceae | Daucus | carota | L. |   |   | Queen Anne's lace | Greene et al. (2005) |
| Apiaceae | Heracleum | mantegazzianum | Sommier & Levier |   |   | giant cow-parsnip | Greene et al. (2005); verified for MDI by Champlainers (AH, TFV) |
| Apiaceae | Ligusticum | scothicum | L. | ssp. scothicum |   | Scotch lovage | Greene et al. (2005) |
| Apiaceae | Pimpinella | saxifraga | L. | ssp. saxifraga |   | solid-stemmed burnet-saxifrage | Greene et al. (2005) |
| Apiaceae | Sium | suave | Walt. |   |   | water-parsnip | Greene et al. (2005) |
| Apocynaceae | Apocynum | androsaemifolium | L. |   |   | spreading dogbane | Greene et al. (2005) |
| Apocynaceae | Asclepias | syriaca | L. |   |   | common milkweed | Greene et al. (2005) |
| Aquifoliaceae | Ilex | mucronata | (L.) M. Powell, Savol., & S. Andrews |   |   | mountain holly | Greene et al. (2005) as Nemopanthus mucronatus |
| Aquifoliaceae | Ilex | verticillata | (L.) Gray |   |   | common winterberry | Greene et al. (2005) |
| Asteraceae | Achillea | millefolium | L. | ssp. lanulosa | (Nutt.) Piper | common yarrow | Greene et al. (2005) Achillea millefolium var. occidentalis |
| Asteraceae | Achillea | ptarmica | L. |   |   | pearl yarrow | Greene et al. (2005) |
| Asteraceae | Ambrosia | artemisiifolia | L. |   |   | common ragweed | Greene et al. (2005) as Ambrosia artemisiifolia var. elatior |
| Asteraceae | Anaphalis | margaritacea | (L.) Benth. & Hook. f. |   |   | pearly everlasting | Greene et al. (2005) |
| Asteraceae | Antennaria | howellii | Greene | ssp. canadensis | (Greene) Bayer | small pussytoes | Greene et al. (2005) |
| Asteraceae | Antennaria | howellii | Greene | ssp. neodioica | (Greene) Bayer | small pussytoes | Greene et al. (2005) |
| Asteraceae | Antennaria | neglecta | Greene |   |   | field pussytoes | Greene et al. (2005) |
| Asteraceae | Anthemis | cotula | L. |   |   | stinking chamomile | Greene et al. (2005) |
| Asteraceae | Arctium | minus | Bernh. |   |   | common burdock | Greene et al. (2005) |
| Asteraceae | Arnoseris | minima | (L.) Schweig. & Koerte |   |   | lamb-succory | Greene et al. (2005) |
| Asteraceae | Artemisia | vulgaris | L. | var. vulgaris |   | common wormwood | Greene et al. (2005) |
| Asteraceae | Bidens | frondosa | L. |   |   | ? | Greene et al. (2005) |
| Asteraceae | Centaurea | nigra | L. |   |   | black knapweed | Greene et al. (2005) |
| Asteraceae | Cichorium | intybus | L. |   |   | chicory | Greene et al. (2005) |
| Asteraceae | Cirsium | arvense | (L.) Scop. |   |   | Canada thistle | Greene et al. (2005) |
| Asteraceae | Cirsium | muticum | Michx. |   |   | swamp thistle | Greene et al. (2005) |
| Asteraceae | Cirsium | vulgare | (Savi) Ten. |   |   | common thistle | Greene et al. (2005) |
| Asteraceae | Doellingeria | umbellata | (P. Mill.) Nees |   |   | tall white-aster | Greene et al. (2005) |
| Asteraceae | Erechtites | hieraciifolius | (L.) Raf. ex DC. | var. hieraciifolius |   | American burnweed | Greene et al. (2005) |
| Asteraceae | Erigeron | annuus | (L.) Pers. |   |   | annual fleabane | Greene et al. (2005) |
| Asteraceae | Erigeron | canadensis | L. |   |   | Canada fleabane | Greene et al. (2005) as Conyza canadensis |
| Asteraceae | Erigeron | strigosus | Muhl. ex Willd. | var. strigosus |   | rough fleabane | Greene et al. (2005) |
| Asteraceae | Eupatorium | perfoliatum | L. |   |   | boneset thoroughwort | Greene et al. (2005) |
| Asteraceae | Eurybia | macrophylla | (L.) Cass. |   |   | large-leaved wood-aster | Greene et al. (2005) as Aster macrophyllus |
| Asteraceae | Eurybia | radula | (Ait.) Nesom |   |   | rough wood-aster | Greene et al. (2005) as Aster radula |
| Asteraceae | Euthamia | graminifolia | (L.) Nutt. |   |   | common grass-leaved-goldenrod | Greene et al. (2005) |
| Asteraceae | Galinsoga | quadriradiata | Ruiz & Pavon |   |   | common quickweed | Greene et al. (2005) |
| Asteraceae | Gnaphalium | uliginosum | (L.) |   |   | brown cudweed | Greene et al. (2005) |
| Asteraceae | Helianthus | tuberosus | L. |   |   | Jerusalem artichoke sunflower | Greene et al. (2005) |
| Asteraceae | Hieracium | kalmii | L. |   |   | common hawkweed | Greene et al. (2005) as Hieracium canadense and H. kalmii |
| Asteraceae | Hieracium | lachenalii | K. C. Gmel. |   |   | common hawkweed | Greene et al. (2005) |
| Asteraceae | Hieracium | murorum | L. |   |   | wall hawkweed | Greene et al. (2005) |
| Asteraceae | Hieracium | paniculatum | L. |   |   | panicled hawkweed | Greene et al. (2005) |
| Asteraceae | Hieracium | sabaudum | Michx. |   |   | Savoy hawkweed | Greene et al. (2005) |
| Asteraceae | Hieracium | scabrum | L. |   |   | rough hawkweed | Greene et al. (2005) as Hieracium scabrum var. scabrum and H. scabrum var. tonsum |
| Asteraceae | Lactuca | biennis | (Moench) Fern. |   |   | tall blue lettuce | Greene et al. (2005) |
| Asteraceae | Lactuca | canadensis | L. |   |   | tall lettuce | Greene et al. (2005) as Lactuca canadensis var. latifolia |
| Asteraceae | Lapsana | communis | L. |   |   | common nipplewort | Greene et al. (2005) |
| Asteraceae | Leontodon | autumnalis | L. | ssp. pratensis | (Link) Arcang. | fall-dandelion | Greene et al. (2005) |
| Asteraceae | Leucanthemum | vulgare | Lam. |   |   | ox-eye daisy | Greene et al. (2005) |
| Asteraceae | Matricaria | discoidea | DC. |   |   | rayless chamomile | Greene et al. (2005) |
| Asteraceae | Mycelis | muralis | (L.) Dumort. |   |   | wall-lettuce | Greene et al. (2005) |
| Asteraceae | Nabalus | altissimus | (L.) Hook. |   |   | tall rattlesnake-root | Greene et al. (2005) as Prenanthes altissima |
| Asteraceae | Nabalus | trifoliolatus | Cass. |   |   | three-leaved rattlesnake-root | Greene et al. (2005) as Prenanthes trifoliolata |
| Asteraceae | Oclemena | acuminata | (Michx.) Nesom |   |   | sharp-toothed nodding-aster | Greene et al. (2005) |
| Asteraceae | Oclemena | x blakei | (Porter) Nesom |   |   | sharp-toothed nodding-aster | Greene et al. (2005) |
| Asteraceae | Oclemena | nemoralis | (Ait.) Greene |   |   | bog nodding-aster | Greene et al. (2005) |
| Asteraceae | Packera | schweinitziana | (Nutt.) W. A. Weber & A. Love |   |   | golden groundsel | Greene et al. (2005) as Senecio schweinitzianus |
| Asteraceae | Petasites | frigidus | (L.) Fries | var. palmatus | (Ait.) Cronq. | northern sweet-coltsfoot | Greene et al. (2005) |
| Asteraceae | Pilosella | aurantiaca | (L.) F. W. Schultz & Schultz-Bip. |   |   | orange king-devil | Greene et al. (2005) as Hieracium aurantiacum |
| Asteraceae | Pilosella | caespitosa | (Dumort.) P. D. Sell. & C. West |   |   | yellow king-devil | Greene et al. (2005) as Hieracium caespitosum |
| Asteraceae | Pilosella | x floribunda | (Wimmer & Grab.) Arv.-Touv. |   |   | yellow king-devil | Greene et al. (2005) as Hieracium x floribundum |
| Asteraceae | Pilosella | officinarum | F. W. Schultz & Schultz-Bip. |   |   | mouse-ear king-devil | Greene et al. (2005) as Hieracium pilosella var. pilosella |
| Asteraceae | Pseudognaphalium | obtusifolium | (L.) Hilliard & Burtt |   |   | blunt-leaved rabbit-tobacco | Greene et al. (2005) |
| Asteraceae | Rudbeckia | hirta | L. | var. pulcherrima | Farw. | black-eyed coneflower | Greene et al. (2005) |
| Asteraceae | Senecio | jacobaea | L. |   |   | tansy ragwort | Greene et al. (2005) |
| Asteraceae | Senecio | sylvaticus | L. |   |   | woodland ragwort | Greene et al. (2005) |
| Asteraceae | Senecio | vulgaris | L. |   |   | common ragwort | Greene et al. (2005) |
| Asteraceae | Silphium | perfoliatum | L. | var. perfoliatum |   | cup-plant rosinweed | Greene et al. (2005) |
| Asteraceae | Solidago | bicolor | L. |   |   | white goldenrod | Greene et al. (2005) |
| Asteraceae | Solidago | canadensis | L. | var. canadensis |   | Canada goldenrod | Greene et al. (2005) |
| Asteraceae | Solidago | flexicaulis | L. |   |   | zig-zag goldenrod | Greene et al. (2005) |
| Asteraceae | Solidago | gigantea | Ait. |   |   | smooth goldenrod | Greene et al. (2005) |
| Asteraceae | Solidago | juncea | Ait. |   |   | early goldenrod | Greene et al. (2005) |
| Asteraceae | Solidago | nemoralis | Ait. | ssp. nemoralis |   | gray goldenrod | Greene et al. (2005) |
| Asteraceae | Solidago | puberula | Nutt. | var. puberula |   | downy goldenrod | Greene et al. (2005) |
| Asteraceae | Solidago | rugosa | P. Mill | ssp. rugosa var. rugosa |   | common wrinkle-leaved goldenrod | Greene et al. (2005) |
| Asteraceae | Solidago | sempervirens | L. | var. sempervirens |   | sea-side goldenrod | Greene et al. (2005) |
| Asteraceae | Solidago | simplex | Kunth. | ssp. randii var. monticola | ? / (Porter) Ringius | Rand's goldenrod | Greene et al. (2005) |
| Asteraceae | Solidago | uliginosa | Nutt. |   |   | bog goldenrod | Greene et al. (2005) |
| Asteraceae | Sonchus | arvensis | L. | ssp. arvensis |   | field sow-thistle | Greene et al. (2005) |
| Asteraceae | Sonchus | asper | (L.) Hill |   |   | spiny-leaved sow-thistle | Greene et al. (2005) |
| Asteraceae | Sonchus | oleraceus | L. |   |   | common sow-thistle | Greene et al. (2005) |
| Asteraceae | Symphyotrichum | cordifolium | (L.) Nesom |   |   | heart-leaved American-aster | Greene et al. (2005) |
| Asteraceae | Symphyotrichum | lateriflorum | (L.) A. & D. Love |   |   | calico American-aster | Greene et al. (2005) as |
| Asteraceae | Symphyotrichum | novae-angliae | (L.) Nesom |   |   | New England American-aster | Greene et al. (2005) |
| Asteraceae | Symphyotrichum | novi-belgii | (L.) Nesom | var. elodes | (Torr. & Gray) Nesom | New York American-aster | Greene et al. (2005) |
| Asteraceae | Symphyotrichum | novi-belgii | (L.) Nesom | var. novi-belgii |   | New York American-aster | Greene et al. (2005) |
| Asteraceae | Symphyotrichum | novi-belgii | (L.) Nesom | var. villicaule | (Gray) Lebrecque & Brouillet | New York American-aster | Greene et al. (2005) |
| Asteraceae | Symphyotrichum | puniceum | (L.) A. & D. Love | var. puniceum |   | purple-stemmed American-aster | Greene et al. (2005) |
| Asteraceae | Tanacetum | vulgare | L. |   |   | common tansy | Greene et al. (2005) |
| Asteraceae | Taraxacum | officinale | G. H. Weber ex Wiggers |   |   | common dandelion | Greene et al. (2005); verified for MDI by Champlainer (TFV) |
| Asteraceae | Tragopogon | pratensis | L. |   |   | meadow goat's beard | Greene et al. (2005) |
| Asteraceae | Tussilago | farfara | L. |   |   | coltsfoot | Greene et al. (2005) |
| Balsaminaceae | Impatiens | capensis | Meerb. |   |   | spotted touch-me-knot | Greene et al. (2005) |
| Balsaminaceae | Impatiens | glandulifera | Royle |   |   | Himalaya touch-me-knot | Greene et al. (2005) |
| Berberidaceae | Berberis | thunbergii | DC. |   |   | Japanese barberry | Greene et al. (2005); verified for MDI by Champlainer (TFV) |
| Berberidaceae | Berberis | vulgaris | L. |   |   | common barberry | Greene et al. (2005) |
| Betulaceae | Alnus | incana | (L.) Moench | ssp. rugosa | (Du Roi) Clausen | speckled alder | Greene et al. (2005); verified for MDI by Champlainers (TFV, JW) |
| Betulaceae | Alnus | viridis | (Vill.) Lam. & DC. | ssp. crispa | (Ait.) Turrill | green alder | Greene et al. (2005); verified for MDI by Champlainers (TFV, JW) |
| Betulaceae | Betula | alleghaniensis | Britt. |   |   | yellow birch | Greene et al. (2005); verified for MDI by Champlainer (TFV) |
| Betulaceae | Betula | x caerulea | Blanch. |   |   | blue birch | Greene et al. (2005) |
| Betulaceae | Betula | cordifolia | Regel |   |   | heart-leaved paper birch | Greene et al. (2005) |
| Betulaceae | Betula | papyrifera | Marsh. |   |   | paper birch | Greene et al. (2005); verified for MDI by Champlainer (TFV) |
| Betulaceae | Betula | populifolia | Marsh. |   |   | gray birch | Greene et al. (2005); verified for MDI by Champlainer (TFV) |
| Betulaceae | Carpinus | caroliniana | Walt. | ssp. virginiana | (Marsh.) Furlow | American hornbeam | Greene et al. (2005) |
| Betulaceae | Corylus | cornuta | Marsh. | ssp. cornuta |   | beaked hazelnut | Greene et al. (2005); verified for MDI by Champlainers (TFV, JW) |
| Betulaceae | Ostrya | virginiana | (P. Mill.) K. Koch |   |   | hop-hornbeam | Greene et al. (2005) |
| Boraginaceae | Mertensia | maritima | (L.) S. F. Gray | var. maritime |   | seaside bluebells | Greene et al. (2005) |
| Boraginaceae | Myosotis | laxa | Lehm. |   |   | smaller forget-me-knot | Greene et al. (2005) |
| Boraginaceae | Myosotis | scorpioides | L. |   |   | water forget-me-knot | Greene et al. (2005) |
| Brassicaceae | Alliaria | petiolata | (Bieb.) Cavara & Grande |   |   | garlic-mustard | Greene et al. (2005) |
| Brassicaceae | Barbarea | vulgaris | Ait. f. |   |   | garden yellow-rocket | Greene et al. (2005) |
| Brassicaceae | Boechera | stricta | (Graham) Al-Shehbaz |   |   | Canada rockcress | Greene et al. (2005) as Arabis drummondii |
| Brassicaceae | Brassica | juncea | (L.) Czern. |   |   | Chinese mustard | Greene et al. (2005) |
| Brassicaceae | Brassica | nigra | (L.) W. D. J. Koch |   |   | black mustard | Greene et al. (2005) |
| Brassicaceae | Brassica | rapa | L. |   |   | rape | Greene et al. (2005) |
| Brassicaceae | Cakile | edentula | (Bigelow) Hook. | ssp. edentula var. edentula |   | American sea-rocket | Greene et al. (2005) |
| Brassicaceae | Capsella | bursa-pastoris | (L.) Medik. |   |   | Shepherd's-purse | Greene et al. (2005) |
| Brassicaceae | Cardamine | impatiens | (Michx.) Sw. |   |   | narrow-leaved bitter-cress | Greene et al. (2005) |
| Brassicaceae | Cardamine | parviflora | L. | var. arenicola | (Britt.) O. E. Schulz | small-flowered bitter-cress | Greene et al. (2005) |
| Brassicaceae | Cardamine | pensylvanica | Muhl. ex Willd. |   |   | Pennsylvania bitter-cress | Greene et al. (2005) |
| Brassicaceae | Cardamine | pratensis | L. |   |   | cuckoo bitter-cress | Greene et al. (2005) |
| Brassicaceae | Draba | verna | L. |   |   | spring whitlow-mustard | Greene et al. (2005) |
| Brassicaceae | Erysimum | cheiranthoides | L. |   |   | wormseed wallflower | Greene et al. (2005) |
| Brassicaceae | Hesperis | matronalis | L. |   |   | dames-rocket | Greene et al. (2005) |
| Brassicaceae | Lepidium | campestre | (L.) Ait. f. |   |   | field pepperweed | Greene et al. (2005) |
| Brassicaceae | Lepidium | virginicum | L. | var. virginicum |   | poor-man's pepperweed | Greene et al. (2005) |
| Brassicaceae | Raphanus | raphanistrum | L. |   |   | wild radish | Greene et al. (2005) |
| Brassicaceae | Sisymbrium | officinale | (L.) Scop. |   |   | common hedge-mustard | Greene et al. (2005) |
| Brassicaceae | Subularia | aquatica | L. | ssp. americana | Mulligan & Calder | American water-awlwort | Greene et al. (2005) |
| Brassicaceae | Thlaspi | arvense | L. |   |   | field penny-cress | Greene et al. (2005) |
| Campanulaceae | Campanula | aparinoides | Pursh |   |   | marsh bellflower | Greene et al. (2005) |
| Campanulaceae | Campanula | rapunculoides | L. |   |   | creeping bellflower | Greene et al. (2005) |
| Campanulaceae | Campanula | rotundifolia | L. |   |   | Scotch bellflower | Greene et al. (2005) |
| Campanulaceae | Lobelia | cardinalis | L. |   |   | red lobelia | Greene et al. (2005) |
| Campanulaceae | Lobelia | dortmanna | L. |   |   | water lobelia | Greene et al. (2005) |
| Campanulaceae | Lobelia | inflata | L. |   |   | bladder-pod lobelia | Greene et al. (2005) |
| Caprifoliaceae | Diervilla | lonicera | P. Mill. |   |   | bush-honeysuckle | Greene et al. (2005) |
| Caprifoliaceae | Linnaea | borealis | L. | ssp. americana | (Forbes) Hulten ex Clausen | American twinflower | Greene et al. (2005) |
| Caprifoliaceae | Lonicera | x bella | Zabel |   |   | ? | Greene et al. (2005) |
| Caprifoliaceae | Lonicera | canadensis | Bartr. ex Marsh. |   |   | American honeysuckle | Greene et al. (2005) |
| Caprifoliaceae | Lonicera | japonica | Thunb. |   |   | Japanese honeysuckle | Greene et al. (2005) |
| Caprifoliaceae | Lonicera | morrowii | Gray |   |   | Morrow's honeysuckle | Greene et al. (2005) |
| Caprifoliaceae | Lonicera | villosa | (Michx.) J. A. Schultes |   |   | mountain honeysuckle | Greene et al. (2005) |
| Caprifoliaceae | Lonicera | xylosteum | L. |   |   | fly honeysuckle | Greene et al. (2005) |
| Caprifoliaceae | Symphoricarpos | albus | (L.) Blake | ssp. laevigatus | (Fern.) Hulten | common snowberry | Greene et al. (2005) |
| Caprifoliaceae | Valeriana | officinalis | L. |   |   | common valerian | Greene et al. (2005) |
| Caryophyllaceae | Cerastium | arvense | L. |   |   | field chickweed | Greene et al. (2005) |
| Caryophyllaceae | Cerastium | fontanum | Baumg. | ssp. vulgare | (Hartman) Greuter & Burdet | mouse-ear chickweed | Greene et al. (2005) |
| Caryophyllaceae | Dianthus | armeria | L. |   |   | Deptford pink | Greene et al. (2005) |
| Caryophyllaceae | Honckenya | peploides | (L.) Ehrh. | ssp. robusta | (Fern.) Hulten | seaside-sandwort | Greene et al. (2005) |
| Caryophyllaceae | Minuartia | groenlandica | (Retz.) Ostenf. | ssp. glabra | (Michx.) A. & D. Love | mountain sandplant | Greene et al. (2005) as Minuartia glabra |
| Caryophyllaceae | Minuartia | groenlandica | (Retz.) Ostenf. | ssp. groenlandica |   | mountain sandplant | Greene et al. (2005) as Minuartia groenlandica |
| Caryophyllaceae | Moehringia | lateriflora | (L.) Fenzl |   |   | blunt-leaved grove-sandwort | Greene et al. (2005) |
| Caryophyllaceae | Sagina | nodosa | (L.) Frenzl | ssp. nodosa |   | knotted pearlwort | Greene et al. (2005) |
| Caryophyllaceae | Sagina | procumbens | L. |   |   | knotted pearlwort | Greene et al. (2005) |
| Caryophyllaceae | Saponaria | officinalis | L. |   |   | common soapwort | Greene et al. (2005) |
| Caryophyllaceae | Silene | latifolia | Poir. | ssp. alba | (P. Mill.) Greuter & Burdet | white campion | Greene et al. (2005) |
| Caryophyllaceae | Silene | vulgaris | (Moench) Garcke | ssp. vulgaris |   | bladder campion | Greene et al. (2005) |
| Caryophyllaceae | Spergula | arvensis | L. |   |   | corn spurry | Greene et al. (2005) |
| Caryophyllaceae | Spergularia | canadensis | (Pers.) G. Don | var. canadensis |   | Canada sand-spurry | Greene et al. (2005) |
| Caryophyllaceae | Spergularia | rubra | (L.) J. & K. Presl |   |   | red sand-spurry | Greene et al. (2005) |
| Caryophyllaceae | Stellaria | graminea | (Ledeb.) Bogn |   |   | grass-leaved stitchwort | Greene et al. (2005) |
| Caryophyllaceae | Stellaria | media | (L.) Vill |   |   | common stitchwort | Greene et al. (2005) |
| Celastraceae | Celastrus | orbiculata | Thunb. |   |   | Asian bittersweet | Greene et al. (2005) |
| Celastraceae | Euonymus | alata | (Thunb.) Sieb. |   |   | winged spindle-tree | Greene et al. (2005) |
| Celastraceae | Euonymus | atropurpurea | Jacq. | var. atropurpurea |   | eastern spindle-tree | Greene et al. (2005) |
| Cistaceae | Hudsonia | ericoides | L. |   |   | pine-barren false heather | Greene et al. (2005) |
| Cistaceae | Lechea | intermedia | Leggett ex Britt. | var. intermedia |   | round-fruited pinweed | Greene et al. (2005) |
| Clusiaceae | Hypericum | boreale | (Britt.) Bickn. |   |   | northern St. John's-wort | Greene et al. (2005) |
| Clusiaceae | Hypericum | canadense | L. |   |   | lesser Canada St. John's-wort | Greene et al. (2005) |
| Clusiaceae | Hypericum | x dissimulatum | Bickn. |   |   | ? | Greene et al. (2005) |
| Clusiaceae | Hypericum | ellipticum | Hook. |   |   | pale St. John's-wort | Greene et al. (2005) |
| Clusiaceae | Hypericum | gentianoides | (L.) B. S. P. |   |   | orange-grass St. John's-wort | Greene et al. (2005) |
| Clusiaceae | Hypericum | mutilum | L. |   |   | dwarf St. John's-wort | Greene et al. (2005) |
| Clusiaceae | Hypericum | perforatum | L. |   |   | common St. John's-wort | Greene et al. (2005) |
| Clusiaceae | Hypericum | prolificum | L. |   |   | shrubby St. John's-wort | Greene et al. (2005) |
| Clusiaceae | Hypericum | punctatum | Lam. |   |   | spotted St. John's-wort | Greene et al. (2005) |
| Clusiaceae | Triadenum | fraseri | (Spach) Gleason |   |   | Fraser's marsh-St. John's-wort | Greene et al. (2005) |
| Clusiaceae | Triadenum | virginicum | (L.) Raf. |   |   | Virginia marsh-St. John's-wort | Greene et al. (2005) |
| Convolvulaceae | Calystegia | sepium | (L.) R. Br. | ssp. sepium |   | hedge false bindweed | Greene et al. (2005) |
| Convolvulaceae | Cuscuta | gronovii | Willd. ex J. A. Schultes | var. gronovii |   | common dodder | Greene et al. (2005) |
| Cornaceae | Cornus | alternifolia | L. f. |   |   | alternate-leaved dogwood | Greene et al. (2005) |
| Cornaceae | Cornus | canadensis | L. |   |   | Canada bunchberry | Greene et al. (2005) |
| Cornaceae | Cornus | rugosa | Lam. |   |   | round-leaved dogwood | Greene et al. (2005) |
| Crassulaceae | Hylotelephium | telephium | (L.) H. Ohba | ssp. telephium |   | purple orpine | Greene et al. (2005) |
| Crassulaceae | Rhodiola | rosea | L. |   |   | roseroot | Greene et al. (2005) |
| Crassulaceae | Sedum | acre | L. |   |   | moss stonecrop | Greene et al. (2005) |
| Droseraceae | Drosera | intermedia | Hayne |   |   | spatulate-leaved sundew | Greene et al. (2005) |
| Droseraceae | Drosera | rotundifolia | Goldie |   |   | round-leaved sundew | Greene et al. (2005) |
| Elatinaceae | Elatine | minima | (Nutt.) Fisch. & C. A. Mey. |   |   | small waterwort | Greene et al. (2005) |
| Ericaceae | Andromeda | polifolia | L. | var. glaucophylla | (Link) DC. | bog-rosemary | Greene et al. (2005) |
| Ericaceae | Arctostaphylos | uva-ursi | (L.) Spreng. |   |   | red bearberry | Greene et al. (2005) |
| Ericaceae | Calluna | vulgaris | (L.) Hull |   |   | heather | Greene et al. (2005) |
| Ericaceae | Chamaedaphna | calyculata | (L.) Moench |   |   | leatherleaf | Greene et al. (2005) |
| Ericaceae | Chimaphila | umbellata | (L.) W. Bart. | ssp. cisatlantica | (Blake) Hulten | noble prince's-pine | Greene et al. (2005) |
| Ericaceae | Corema | conradii | (Torr.) Torr. ex Loud. |   |   | broom-crowberry | Greene et al. (2005) |
| Ericaceae | Empetrum | nigrum | L. | ssp. hermaphroditum | (Lange ex Hargerup) Bocher | black crowberry | Greene et al. (2005) |
| Ericaceae | Epigaea | repens | L. |   |   | trailing-arbutus | Greene et al. (2005) |
| Ericaceae | Gaultheria | hispidula | (L.) Muhl. ex Bigelow |   |   | creeping spicy-wintergreen | Greene et al. (2005); verified for MDI by Champlainer (TFV) |
| Ericaceae | Gaultheria | procumbens | L. |   |   | eastern spicy-wintergreen | Greene et al. (2005); verified for MDI by Champlainer (TFV) |
| Ericaceae | Gaylussacia | baccata | (Wangenh.) K. Koch |   |   | black huckleberry | Greene et al. (2005) |
| Ericaceae | Gaylussacia | dumosa | (Andr.) Torr. & Gray |   |   | dwarf huckleberry | Greene et al. (2005) |
| Ericaceae | Kalmia | angustifolia | L. |   |   | sheep American-laurel | Greene et al. (2005); verified for MDI by Champlainer (TFV) |
| Ericaceae | Kalmia | polifolia | L. |   |   | bog American-laurel | Greene et al. (2005) |
| Ericaceae | Moneses | uniflora | (L.) Gray |   |   | one-flowered-shinleaf | Greene et al. (2005) |
| Ericaceae | Monotropa | uniflora | L. |   |   | one-flowered Indian-pipe | Greene et al. (2005) |
| Ericaceae | Orthilia | secunda | (L.) House |   |   | mountain American-laurel | Greene et al. (2005) |
| Ericaceae | Pyrola | americana | Sweet |   |   | American shinleaf | Greene et al. (2005) |
| Ericaceae | Pyrola | chlorantha | Sw. |   |   | green-flowered shinleaf | Greene et al. (2005) |
| Ericaceae | Pyrola | elliptica | Nutt. |   |   | elliptic-leaved shinleaf | Greene et al. (2005) |
| Ericaceae | Rhododendron | canadense | (L.) Torr. |   |   | rhodora | Greene et al. (2005) |
| Ericaceae | Rhododendron | groenlandicum | (Oeder) Kron & Judd |   |   | Labrador-tea | Greene et al. (2005) |
| Ericaceae | Vaccinium | angustifolium | Ait. |   |   | common lowbush blueberry | Greene et al. (2005) |
| Ericaceae | Vaccinium | boreale | Hall & Aalders |   |   | northern blueberry | Greene et al. (2005) |
| Ericaceae | Vaccinium | corymbosum | L. |   |   | highbush blueberry | Greene et al. (2005) |
| Ericaceae | Vaccinium | macrocarpon | Ait. |   |   | large cranberry | Greene et al. (2005) |
| Ericaceae | Vaccinium | myrtilloides | Michx. |   |   | velvet-leaved blueberry | Greene et al. (2005) |
| Ericaceae | Vaccinium | oxycoccos | L. |   |   | small cranberry | Greene et al. (2005) |
| Ericaceae | Vaccinium | vitis-idaea | L. | ssp. minus | (Lodd.) Hulten | mountain cranberry | Greene et al. (2005); verified for MDI by Champlainer (TFV) |
| Euphorbiaceae | Euphorbia | cyparissias | L. |   |   | cypress spurge | Greene et al. (2005) |
| Fabaceae | Amorpha | fruticosa | L. |   |   | false indigo-bush | Greene et al. (2005) |
| Fabaceae | Amphicarpaea | bracteata | (L.) Fern. |   |   | American hog-peanut | Greene et al. (2005) |
| Fabaceae | Genista | tinctoria | L. |   |   | dyer's greenweed | Greene et al. (2005) |
| Fabaceae | Laburnum | x watereri | Dapp. |   |   | golden-chain-tree | Greene et al. (2005) |
| Fabaceae | Lathyrus | japonicus | Willd. | var. maritimus | (L.) Kartesz & Gandhi | beach vetchling | Greene et al. (2005) |
| Fabaceae | Lathyrus | japonicus | Willd. | var. pellitus | Fern. | beach vetchling | Greene et al. (2005) |
| Fabaceae | Lathyrus | palustris | L. |   |   | marsh vetchling | Greene et al. (2005) |
| Fabaceae | Lathyrus | pratensis | L. |   |   | meadow vetchling | Greene et al. (2005) |
| Fabaceae | Lotus | corniculatus | L. |   |   | garden bird's-foot-trefoil | Greene et al. (2005) |
| Fabaceae | Lupinus | polyphyllus | Lindl. | var. polyphyllus |   | blue lupine | Greene et al. (2005) |
| Fabaceae | Medicago | lupulina | L. |   |   | black medick | Greene et al. (2005) |
| Fabaceae | Medicago | sativa | L. |   |   | purple medick | Greene et al. (2005) |
| Fabaceae | Melilotus | officinalis | (L.) Lam. |   |   | yellow sweet-clover | Greene et al. (2005) |
| Fabaceae | Robinia | pseudoacacia | L. |   |   | black locust | Greene et al. (2005) |
| Fabaceae | Robinia | viscosa | Vent. | var. viscosa |   | clammy locust | Greene et al. (2005) |
| Fabaceae | Securigera | varia | (L.) Lassen |   |   | crown-vetch | Greene et al. (2005) |
| Fabaceae | Thermopsis | mollis | (Michx.) M. A. Curtis ex Gray |   |   | Piedmont false lupine | Greene et al. (2005) |
| Fabaceae | Trifolium | arvense | L. |   |   | rabbit-foot clover | Greene et al. (2005) |
| Fabaceae | Trifolium | aureum | Pollich |   |   | palmate hop clover | Greene et al. (2005) |
| Fabaceae | Trifolium | campestre | Schreb. |   |   | pinnate hop clover | Greene et al. (2005) |
| Fabaceae | Trifolium | hybridum | L. |   |   | alsike clover | Greene et al. (2005) |
| Fabaceae | Trifolium | pratense | L. |   |   | red clover | Greene et al. (2005) |
| Fabaceae | Trifolium | repens | L. |   |   | white clover | Greene et al. (2005) |
| Fabaceae | Vicia | cracca | L. | ssp. cracca |   | bird vetch | Greene et al. (2005) |
| Fabaceae | Vicia | sativa | L. | ssp. nigra | (L.) Ehrh. | common vetch | Greene et al. (2005) |
| Fabaceae | Vicia | tetrasperma | (L.) Schreb. |   |   | four-seeded vetch | Greene et al. (2005) |
| Fagaceae | Fagus | grandifolia | Ehrh. |   |   | American beech | Greene et al. (2005) |
| Fagaceae | Fagus | sylvatica | L. |   |   | European beech | ? |
| Fagaceae | Quercus | ilicifolia | Wangenh. |   |   | scrub oak | Greene et al. (2005) |
| Fagaceae | Quercus | rubra | L. |   |   | northern red oak | Greene et al. (2005) |
| Gentianaceae | Bartonia | virginica | (L.) B. S. P. |   |   | yellow screwstem | Greene et al. (2005) |
| Geraniaceae | Geranium | pratense | L. |   |   | meadow crane's-bill | Greene et al. (2005) |
| Geraniaceae | Geranium | robertianum | L. |   |   | mountain crane's-bill | Greene et al. (2005) |
| Grossulariaceae | Ribes | glandulosum | Grauer |   |   | skunk currant | Greene et al. (2005) |
| Grossulariaceae | Ribes | hirtellum | Michx. |   |   | hairy-stemmed gooseberry | Greene et al. (2005) |
| Grossulariaceae | Ribes | lacustre | (Pers.) Poir. |   |   | bristly swamp currant | Greene et al. (2005) |
| Haloragaceae | Myriophyllum | alterniflorum | DC. |   |   | alternate-flowered water-milfoil | Greene et al. (2005) |
| Haloragaceae | Myriophyllum | tenellum | Bigelow |   |   | slender water-milfoil | Greene et al. (2005) |
| Haloragaceae | Proserpinaca | palustris | L. |   |   | marsh mermaid-weed | Greene et al. (2005) |
| Haloragaceae | Proserpinaca | pectinata | Lam. |   |   | comb-leaved mermaid-weed | Greene et al. (2005) |
| Hamamelidaceae | Hamamelis | virginiana | Lam. |   |   | American witch-hazel | Greene et al. (2005); verified for MDI by Champlainer (TFV) |
| Lamiaceae | Galeopsis | tetrahit | L. |   |   | brittle-stemmed hemp-nettle | Greene et al. (2005) |
| Lamiaceae | Lycopus | americanus | Muhl. ex W. Bart. |   |   | American water-horehound | Greene et al. (2005) |
| Lamiaceae | Lycopus | uniflorus | Michx. |   |   | northern water-horehound | Greene et al. (2005) |
| Lamiaceae | Mentha | arvensis | L. |   |   | field mint | Greene et al. (2005) |
| Lamiaceae | Prunella | vulgaris | L. | ssp. lanceolata | (W. Bart.) Hulten | common selfheal | Greene et al. (2005) |
| Lamiaceae | Prunella | vulgaris | L. | ssp. vulgaris |   | common selfheal | Greene et al. (2005) |
| Lamiaceae | Scutellaria | galericulata | L. |   |   | hooded skullcap | Greene et al. (2005) |
| Lamiaceae | Scutellaria | lateriflora | L. |   |   | mad dog skullcap | Greene et al. (2005) |
| Lamiaceae | Stachys | palustris | L. |   |   | marsh hedge-nettle | Greene et al. (2005) |
| Lamiaceae | Teucrium | canadense | L. | var. canadense |   | American germander | Greene et al. (2005) |
| Lamiaceae | Thymus | pulegioides | L. |   |   | lemon thyme | Greene et al. (2005) |
| Lentibulariaceae | Utricularia | cornuta | Michx. |   |   | horned bladderwort | Greene et al. (2005) |
| Lentibulariaceae | Utricularia | geminiscapa | Benj. |   |   | mixed bladderwort | Greene et al. (2005) |
| Lentibulariaceae | Utricularia | gibba | L. |   |   | creeping bladderwort | Greene et al. (2005) |
| Lentibulariaceae | Utricularia | intermedia | Michx. |   |   | flat-leaved bladderwort | Greene et al. (2005) |
| Lentibulariaceae | Utricularia | macrorhiza | Le Conte |   |   | greater bladderwort | Greene et al. (2005) |
| Lentibulariaceae | Utricularia | minor | L. |   |   | lesser bladderwort | Greene et al. (2005) |
| Lentibulariaceae | Utricularia | purpurea | Michx. |   |   | eastern purple bladderwort | Greene et al. (2005) |
| Lentibulariaceae | Utricularia | radiata | Small |   |   | floating bladderwort | Greene et al. (2005) |
| Lythraceae | Decodon | verticillatus | (L.) Ell. |   |   | swamp-loosestrife | Greene et al. (2005) |
| Lythraceae | Lythrum | salicaria | L. |   |   | purple loosestrife | Greene et al. (2005) |
| Malvaceae | Malva | moschata | L. |   |   | musk mallow | Greene et al. (2005) |
| Malvaceae | Tilia | cordata | P. Mill. |   |   | small-leaved linden | Greene et al. (2005) |
| Malvaceae | Tilia | platyphyllos | Scop. |   |   | large-leaved linden | Greene et al. (2005) |
| Melastomataceae | Rhexia | virginica | L. |   |   | Virginia meadow-beauty | Greene et al. (2005) |
| Menyanthaceae | Menyanthes | trifoliata | L. |   |   | buck-bean | Greene et al. (2005) |
| Menyanthaceae | Nymphoides | cordata | (Ell.) Fern. |   |   | little floating-heart | Greene et al. (2005) |
| Myricaceae | Comptonia | peregrina | (L.) Coult. |   |   | sweet-fern | Greene et al. (2005) |
| Myricaceae | Morella | caroliniensis | (P. Mill.) Small |   |   | small bayberry | Greene et al. (2005) as Myrica pensylvanica |
| Myricaceae | Myrica | gale | L. |   |   | sweet gale | Greene et al. (2005) |
| Myrsinaceae | Glaux | maritima | L. |   |   | sea-milkwort | Greene et al. (2005) in Primulaceae |
| Myrsinaceae | Lysimachia | nummularia | L. |   |   | creeping yellow-loosestrife | Greene et al. (2005) in Primulaceae |
| Myrsinaceae | Lysimachia | punctata | L. |   |   | large yellow-loosestrife | Greene et al. (2005) in Primulaceae |
| Myrsinaceae | Lysimachia | quadrifolia | L. |   |   | whorled yellow-loosestrife | Greene et al. (2005) in Primulaceae |
| Myrsinaceae | Lysimachia | quadriflora | Sims |   |   | four-flowered yellow-loosestrife | Greene et al. (2005) in Primulaceae |
| Myrsinaceae | Lysimachia | terrestris | (L.) B. S. P. |   |   | swamp yellow-loosestrife | Greene et al. (2005) in Primulaceae |
| Myrsinaceae | Lysimachia | thyrsiflora | L. |   |   | tufted yellow-loosestrife | Greene et al. (2005) in Primulaceae |
| Myrsinaceae | Lysimachia | vulgaris | L. |   |   | garden yellow-loosestrife | Greene et al. (2005) in Primulaceae |
| Myrsinaceae | Trientalis | borealis | Raf. | ssp. borealis |   | starflower | Greene et al. (2005) in Primulaceae |
| Oleaceae | Fraxinus | americana | L. |   |   | white ash | Greene et al. (2005) |
| Oleaceae | Fraxinus | nigra | Marsh. |   |   | black ash | Greene et al. (2005) |
| Oleaceae | Fraxinus | pennsylvanica | Marsh. |   |   | green ash | Greene et al. (2005) |
| Oleaceae | Ligustrum | vulgare | L. |   |   | European privet | Greene et al. (2005) |
| Oleaceae | Syringa | chinensis | Willd. |   |   | Chinese lilac | ? |
| Oleaceae | Syringa | vulgaris | L. |   |   | common lilac | ? |
| Onagraceae | Chamerion | angustifolium | (L.) Holub | ssp. circumvagum | (Mosq.) Kartesz | narrow-leaved fireweed | Greene et al. (2005) as Epilobium angustifolium |
| Onagraceae | Circaea | alpina | L. | ssp. alpina |   | small enchanter's-nightshade | Greene et al. (2005) |
| Onagraceae | Epilobium | ciliatum | Raf. | ssp. ciliatum |   | fringed willow-herb | Greene et al. (2005) |
| Onagraceae | Epilobium | ciliatum | Raf. | ssp. glandulosum | (Lehm.) Hoch & Raven | fringed willow-herb | Greene et al. (2005) |
| Onagraceae | Epilobium | coloratum | Biehler |   |   |