| County | FullName | Family | Status | Source |
|---|---|---|---|---|
| Carleton | Adiantum pedatum L. | Pteridaceae | S3 | UNB |
| Carleton | Agrimonia gryposepala Wallr. | Rosaceae | S2 | UNB |
| Carleton | Alisma subcordatum Raf. | Alismataceae | S1 | UNB |
| Carleton | Allium tricoccum Solander ex Ait. | Liliaceae | S2 | UNB |
| Carleton | Alnus serrulata (Ait.) Willd. | Betulaceae | S1 | UNB |
| Carleton | Anemone americana (DC.) H. Hara | Ranunculaceae | S2 | UNB |
| Carleton | Anemone multifida Poir. var. multifida | Ranunculaceae | S2S3 | UNB |
| Carleton | Arabis glabra (L.) Bernh. | Brassicaceae | S2 | UNB |
| Carleton | Arabis hirsuta (L.) Scop. var. adpressipilis (Hopkins) Rollins | Brassicaceae | S2 | UNB |
| Carleton | Arabis hirsuta (L.) Scop. var. pycnocarpa (Hopkins) Rollins | Brassicaceae | S2 | UNB |
| Carleton | Arabis x divaricarpa Nels. | Brassicaceae | S1 | UNB |
| Carleton | Artemisia campestris L. ssp. caudata (Michx.) Hall & Clements | Asteraceae | S3 | UNB |
| Carleton | Aster anticostensis Fern. | Asteraceae | S2 | UNB |
| Carleton | Aster borealis (T. & G.) Prov. | Asteraceae | S2 | UNB |
| Carleton | Aster laevis L. | Asteraceae | S1SE | UNB |
| Carleton | Astragalus alpinus L. var. brunetianus Fern. | Fabaceae | S3 | UNB |
| Carleton | Botrychium dissectum Spreng. | Ophioglossaceae | S3 | UNB |
| Carleton | Botrychium lanceolatum (Gmel.) Angstr. ssp. angustisegmentum (Pease & Moore) Clausen | Ophioglossaceae | S3 | UNB |
| Carleton | Botrychium oneidense (Gilbert) House | Ophioglossaceae | S1 | UNB |
| Carleton | Botrychium rugulosum W.H. Wagner | Ophioglossaceae | S1 | UNB |
| Carleton | Bromus latiglumis (Shear) A.S. Hitchc. | Poaceae | S2 | UNB |
| Carleton | Calopogon tuberosus (L.) BSP. | Orchidaceae | S3S4 | UNB |
| Carleton | Calypso bulbosa (L.) Oakes | Orchidaceae | S2 | UNB |
| Carleton | Cardamine concatenata (Michx.) Sw. | Brassicaceae | S2 | UNB |
| Carleton | Cardamine x maxima (Nutt.) Wood | Brassicaceae | S2 | UNB |
| Carleton | Carex arcta Boott | Cyperaceae | S3 | UNB |
| Carleton | Carex capillaris L. | Cyperaceae | S3 | UNB |
| Carleton | Carex cephaloidea (Dewey) Dewey | Cyperaceae | S1 | UNB |
| Carleton | Carex chordorrhiza Ehrh. ex L. f. | Cyperaceae | S2S3 | UNB |
| Carleton | Carex diandra Schrank | Cyperaceae | S3 | UNB |
| Carleton | Carex eburnea Boott ex Hooker | Cyperaceae | S2S3 | UNB |
| Carleton | Carex folliculata L. | Cyperaceae | S3 | UNB |
| Carleton | Carex granularis Muhl. var. haleana (Olney) Porter | Cyperaceae | S2 | UNB |
| Carleton | Carex gynocrates Wormsk. ex Drejer | Cyperaceae | S2 | UNB |
| Carleton | Carex hirtifolia Mack. | Cyperaceae | S1 | UNB |
| Carleton | Carex ormostachya Wieg. | Cyperaceae | S2S3 | UNB |
| Carleton | Carex plantaginea Lam. | Cyperaceae | S2 | UNB |
| Carleton | Carex rosea Schkuhr ex Willd. | Cyperaceae | S3 | UNB |
| Carleton | Carex sprengelii Dewey ex Spreng. | Cyperaceae | S2 | UNB |
| Carleton | Carex sterilis Willd. | Cyperaceae | S1 | UNB |
| Carleton | Carex vaginata Tausch | Cyperaceae | S2S3 | UNB |
| Carleton | Caulophyllum thalictroides (L.) Michx. | Berberidaceae | S3 | UNB |
| Carleton | Chamaesyce glyptosperma (Engelm.) Small | Euphorbiaceae | S1SE | UNB |
| Carleton | Cladium mariscoides (Muhl.) Torr. | Cyperaceae | S2 | UNB |
| Carleton | Clematis occidentalis (Hornem.) DC. | Ranunculaceae | S3 | UNB |
| Carleton | Coeloglossum viride (L.) Hartman var. virescens (Muhl.) Luer. | Orchidaceae | S2 | UNB |
| Carleton | Corallorhiza maculata Raf. var. maculata | Orchidaceae | S2S3 | UNB |
| Carleton | Corallorhiza maculata Raf. var. occidentalis (Lindley) Ames | Orchidaceae | S2S3 | UNB |
| Carleton | Crataegus scabrida Sarg. | Rosaceae | S2 | UNB |
| Carleton | Crataegus submollis Sarg. | Rosaceae | S2 | UNB |
| Carleton | Cynoglossum virginianum L. var. boreale Fern. | Boraginaceae | S1S2 | UNB |
| Carleton | Cyperus esculentus L. | Cyperaceae | S3 | UNB |
| Carleton | Cypripedium parviflorum Salisb. var. pubescens (Willd.) Knight | Orchidaceae | S3 | UNB |
| Carleton | Cypripedium reginae Walt. | Orchidaceae | S2 | UNB |
| Carleton | Cystopteris tenuis (Michx.) Desv. | Dryopteridaceae | S3S4 | UNB |
| Carlton | Danthonia compressa Austin | Poaceae | S1 | NBnat30(4) |
| Carleton | Diphasiastrum x sabinifolium (Willd.) Holub | Lycopodiaceae | S2S3 | UNB |
| Carleton | Dirca palustris L. | Thymelaeaceae | S1S2 | UNB |
| Carleton | Dryopteris clintoniana (D.C. Eat.) Dowell | Dryopteridaceae | S1 | UNB |
| Carleton | Dryopteris goldiana (Hooker ex Goldie) A. Gray | Dryopteridaceae | S2 | UNB |
| Carleton | Eleocharis quinqueflora (Hartm.) Schwarz. | Cyperaceae | S2S3 | UNB |
| Carleton | Elymus canadensis L. | Poaceae | S2 | UNB |
| Carleton | Elymus hystrix L. var. bigeloviana (Fern.) Bowden | Poaceae | S1 | UNB |
| Carleton | Epilobium coloratum Biehler | Onagraceae | S2? | UNB |
| Carleton | Equisetum palustre L. | Equisetaceae | S3 | UNB |
| Carleton | Equisetum variegatum Schleich. ex Weber & Mohr | Equisetaceae | S3 | UNB |
| Carleton | Erigeron hyssopifolius Michx. | Asteraceae | S3 | UNB |
| Carleton | Fallopia scandens (L.) Holub | Polygonaceae | S2S3 | UNB |
| Carleton | Galearis spectabilis (L.) Raf. | Orchidaceae | S2 | UNB |
| Carleton | Galium obtusum Bigel. | Rubiaceae | S2? | UNB |
| Carleton | Galium trifidum L. ssp. subbiflorum (Wieg.) Piper | Rubiaceae | S1 | UNB |
| Carleton | Gentianella amarella (L.) Boerner ssp. acuta (Michx.) Gillett. | Gentianaceae | S2 | UNB |
| Carleton | Goodyera repens (L.) R. Br. var. ophioides Fern. | Orchidaceae | S3 | UNB |
| Carleton | Goodyera tesselata Lodd. | Orchidaceae | S3S4 | UNB |
| Carleton | Gratiola neglecta Torr. | Scrophulariaceae | S3 | UNB |
| Carleton | Hedysarum alpinum L. | Fabaceae | S3 | UNB |
| Carleton | Helianthus decapetalus L. | Asteraceae | S1 | UNB |
| Carleton | Impatiens pallida Nutt. | Balsaminaceae | S2 | UNB |
| Carleton | Juglans cinerea L. | Juglandaceae | S3 | UNB |
| Carleton | Juncus brachycephalus (Engelm.) Buch. | Juncaceae | S2S3 | UNB |
| Carleton | Lechea intermedia Leggett ex Britt. | Cistaceae | S3 | UNB |
| Carleton | Listera cordata (L.) R. Br. | Orchidaceae | S3S4 | UNB |
| Carleton | Lobelia cardinalis L. | Campanulaceae | S3 | UNB |
| Carleton | Lobelia kalmii L. | Campanulaceae | S3S4 | UNB |
| Carleton | Lonicera oblongifolia (Goldie) Hook. | Caprifoliaceae | S2 | UNB |
| Carleton | Muhlenbergia frondosa (Poir.) Fern. | Poaceae | S3 | UNB |
| Carleton | Muhlenbergia richardsonis (Trin.) Rydb. | Poaceae | S3 | UNB |
| Carleton | Myriophyllum verticillatum L. | Haloragaceae | S2 | UNB |
| Carleton | Ophioglossum pusillum Raf. | Ophioglossaceae | S2 | UNB |
| Carleton | Oxytropis campestris (L.) DC var. johannensis Fern. | Fabaceae | S2 | UNB |
| Carleton | Parnassia glauca Raf. | Saxifragaceae | S3 | UNB |
| Carleton | Persicaria amphibia (L.) S.F. Gray var. emersa (Michx.) Hickman | Polygonaceae | S2 | UNB |
| Carleton | Phryma leptostachya L. | Verbenaceae | S2 | UNB |
| Carleton | Plantago rugelii Dcne. | Plantaginaceae | S3 | UNB |
| Carleton | Platanthera blephariglottis (Willd.) Lindl. | Orchidaceae | S3 | UNB |
| Carleton | Platanthera hookeri (Torr.) Lindl. | Orchidaceae | S3 | UNB |
| Carlton | Platanthera macrophylla (Goldie) P.M. Brown | Orchidaceae | S1 | NBnat30(4) |
| Carleton | Podostemum ceratophyllum Michx. | Podostemaceae | S1 | UNB |
| Carleton | Polygala sanguinea L. | Polygalaceae | S2 | UNB |
| Carleton | Polygala senega L. | Polygalaceae | S2 | UNB |
| Carlton | Polygala verticillata L. | Polygalaceae | S1 | NBnat30(4) |
| Carleton | Polygonum neglectum Besser | Polygonaceae | S1? | UNB |
| Carleton | Polypodium appalachianum Haufler & Windham | Polypodiaceae | S3S4 | UNB |
| Carleton | Polystichum braunii (Spenner) Fée | Dryopteridaceae | S3 | UNB |
| Carleton | Potamogeton friesii Rupr. | Potamogetonaceae | S1 | NBnat30(1) |
| Carleton | Potamogeton nodosus Poir. | Potamogetonaceae | S1 | UNB |
| Carleton | Potentilla arguta Pursh | Rosaceae | S3 | UNB |
| Carleton | Prenanthes racemosa Michx. | Asteraceae | S3 | UNB |
| Carleton | Primula mistassinica Michx. | Primulaceae | S3 | UNB |
| Carleton | Pseudognaphalium macounii (Greene) Kartesz | Asteraceae | S2 | UNB |
| Carleton | Ranunculus aquatilis L. var. diffusus Withering | Ranunculaceae | S1? | UNB |
| Carleton | Ranunculus gmelinii DC. | Ranunculaceae | S2 | UNB |
| Carleton | Ranunculus lapponicus L. | Ranunculaceae | S1 | UNB |
| Carleton | Rubus occidentalis L. | Rosaceae | S2 | UNB |
| Carleton | Sanicula odorata (Raf.) Pryer & Phillippe | Apiaceae | S1 | UNB |
| Carleton | Sanicula trifoliata Bickn. | Apiaceae | S1 | UNB |
| Carleton | Schizachyrium scoparium (Michx.) Nash | Poaceae | S2 | UNB |
| Carleton | Scrophularia lanceolata Pursh | Scrophulariaceae | S2 | UNB |
| Carleton | Solidago canadensis L. var. scabra Torr. & Gray | Asteraceae | S2 | UNB |
| Carleton | Sparganium natans L. | Sparganiaceae | S2S3 | UNB |
| Carleton | Spiranthes cernua (L.) Richard | Orchidaceae | S2 | UNB |
| Carleton | Sporobolus neglectus Nash | Poaceae | S1SE | UNB |
| Carleton | Stachys hispida Pursh. | Lamiaceae | S1S2 | UNB |
| Carleton | Stuckenia filiformis (Pers.) Borner ssp. alpina (Blytt ex Hagstra.) R. Haynes, D. Les & M. Kral | Potamogetonaceae | S2 | UNB |
| Carleton | Tanacetum bipinnatum (L.) Schultz-Bip. ssp. huronense (Nutt.) Breitung | Asteraceae | S3 | UNB |
| Carleton | Thalictrum confine Fern. | Ranunculaceae | S3 | UNB |
| Carleton | Tilia americana L. | Tiliaceae | S3S4 | UNB |
| Carleton | Tofieldia glutinosa (Michx.) Pers. | Liliaceae | S3 | UNB |
| Carleton | Trichophorum clintonii (Gray) S.G. Smith | Cyperaceae | S3 | UNB |
| Carleton | Triosteum aurantiacum Bickn. | Caprifoliaceae | S2 | UNB |
| Carleton | Trisetum melicoides (Michx.) Scribn. | Poaceae | S3 | UNB |
| Carleton | Verbena urticifolia L. | Verbenaceae | S2 | UNB |
| Carleton | Veronica peregrina L. ssp. xalapensis (Kunth) Pennell | Scrophulariaceae | S2? | UNB |
| Carleton | Viburnum dentatum L. var. lucidum Ait. | Caprifoliaceae | S2 | UNB |
| Carleton | Viburnum lentago L. | Caprifoliaceae | S1 | UNB |
| Carleton | Viola canadensis L. | Violaceae | S1S2 | UNB |
| Carleton | Viola selkirkii Pursh | Violaceae | S3 | UNB |
| Carleton | Waldsteinia fragarioides (Michx.) Tratt. | Rosaceae | S1 | UNB |
| Carleton | Zizania palustris L. var. palustris | Poaceae | S3 | UNB |