Rare Species Guide : A-Z List

Accipiter gentilis
Achillea alpina
Achnatherum hymenoides
Acipenser fulvescens
Acris blanchardi
Actinonaias ligamentina
Adlumia fungosa
Adoxa moschatellina
Aegolius funereus
Aeshna sitchensis
Aeshna subarctica
Aflexia rubranura
Agalinis auriculata
Agalinis gattingeri
Agapetus tomus
Agrostis hyemalis
Agrostis scabra
Ahtiana aurescens
Alasmidonta marginata
Alces americanus
Alisma gramineum
Allium cernuum
Allium schoenoprasum
Allocetraria oakesiana
Alosa chrysochloris
Ambystoma maculatum
Ammodramus bairdii
Ammodramus henslowii
Ammodramus nelsoni
Ammophila breviligulata ssp. breviligulata
Amygdalaria panaeola
Anabolia ozburni
Anaptychia crinalis
Anaxyrus cognatus
Androsace septentrionalis
Anguilla rostrata
Antennaria parvifolia
Anthus spragueii
Apalone mutica
Aphanorrhegma serratum
Aphredoderus sayanus
Arcidens confragosus
Arctoparmelia centrifuga
Arctoparmelia subcentrifuga
Arisaema dracontium
Aristida longespica var. geniculata
Aristida purpurea var. longiseta
Aristida tuberculosa
Arnica lonchophylla
Arnoglossum plantagineum
Arnoglossum reniforme
Arthrorhaphis citrinella
Asclepias amplexicaulis
Asclepias hirtella
Asclepias stenophylla
Asclepias sullivantii
Asio flammeus
Asplenium platyneuron
Asplenium trichomanes ssp. trichomanes
Astragalus alpinus var. alpinus
Astragalus flexuosus var. flexuosus
Astragalus missouriensis var. missouriensis
Athene cunicularia
Atrichum crispum
Atrichum tenellum
Atrytone arogos iowa
Attenuipyga vanduzeei
Aulacomnium androgynum
Aulacomnium heterostichum
Aureolaria pedicularia
Avenula hookeri
Bacopa rotundifolia
Baptisia bracteata var. glabrescens
Baptisia lactea var. lactea
Bartonia virginica
Berula erecta
Besseya bullii
Bidens discoidea
Bistorta vivipara
Boechera laevigata
Boechera retrofracta
Boletus subcaerulescens
Botrychium acuminatum
Botrychium ascendens
Botrychium campestre
Botrychium gallicomontanum
Botrychium lanceolatum ssp. angustisegmentum
Botrychium lineare
Botrychium lunaria
Botrychium minganense
Botrychium mormo
Botrychium oneidense
Botrychium pallidum
Botrychium rugulosum
Botrychium simplex
Botrychium spathulatum
Boyeria grafiana
Bryoria fuscescens
Bryoxiphium norvegicum
Buchloe dactyloides
Buellia nigra
Buteo lineatus
Buxbaumia aphylla
Calamagrostis lacustris
Calamagrostis montanensis
Calamagrostis purpurascens
Calcarius ornatus
Callitriche heterophylla
Caloplaca parvula
Caloplaca stellata
Caltha natans
Canis lupus
Cardamine pratensis
Carex annectens
Carex careyana
Carex conjuncta
Carex conoidea
Carex crus-corvi
Carex davisii
Carex exilis
Carex festucacea
Carex flava
Carex formosa
Carex garberi
Carex grayi
Carex hallii
Carex hookerana
Carex jamesii
Carex laevivaginata
Carex laxiculmis var. copulata
Carex media
Carex michauxiana
Carex muskingumensis
Carex novae-angliae
Carex obtusata
Carex ormostachya
Carex pallescens
Carex plantaginea
Carex praticola
Carex rossii
Carex scirpoidea
Carex sterilis
Carex supina ssp. spaniocarpa
Carex typhina
Carex woodii
Carex xerantica
Castilleja septentrionalis
Catocala abbreviatella
Catocala whitneyi
Ceraclea brevis
Ceraclea vertreesi
Cervus elaphus
Chamaesyce missurica
Charadrius melodus
Cheilanthes lanosa
Chelydra serpentina
Chilostigma itascae
Chondestes grammacus
Chrysosplenium iowense
Cicindela denikei
Cicindela fulgida fulgida
Cicindela fulgida westbournei
Cicindela hirticollis rhodensis
Cicindela lepida
Cicindela limbata nympha
Cicindela macra macra
Cicindela patruela patruela
Cicindela splendida cyanocephalata
Cirriphyllum piliferum
Cirsium pumilum var. hillii
Cladium mariscoides
Cladonia wainioi
Claytonia caroliniana
Clinostomus elongatus
Coccocarpia palmicola
Coluber constrictor
Commelina erecta
Coregonus kiyi
Coregonus nipigon
Coregonus zenithicus
Coturnicops noveboracensis
Couesius plumbeus
Crassula aquatica
Crataegus calpodendron
Crataegus douglasii
Crocanthemum canadense
Crotalaria sagittalis
Crotalus horridus
Cryptocolea imbricata
Cryptotis parva
Crystallaria asprella
Cumberlandia monodonta
Cycleptus elongatus
Cyclonaias tuberculata
Cygnus buccinator
Cymopterus glomeratus
Cynodontium schisti
Cyperus acuminatus
Cypripedium arietinum
Cypripedium candidum
Cyrto-hypnum pygmaeum
Dalea candida var. oligophylla
Decodon verticillatus var. laevigatus
Deparia acrostichoides
Dermatocarpon moulinsii
Deschampsia flexuosa
Desmanthus illinoensis
Desmodium cuspidatum var. longifolium
Desmodium nudiflorum
Diarrhena obovata
Dicentra canadensis
Diplazium pycnocarpon
Dodecatheon meadia
Draba arabisans
Draba cana
Draba norvegica
Drosera anglica
Drosera linearis
Dryopteris goldiana
Dryopteris marginalis
Elatine triandra
Eleocharis coloradoensis
Eleocharis flavescens var. olivacea
Eleocharis nitida
Eleocharis quinqueflora
Eleocharis robbinsii
Eleocharis rostellata
Eleocharis wolfii
Ellipsaria lineolata
Elliptio complanata
Elliptio crassidens
Elodea bifoliata
Empetrum atropurpureum
Empetrum nigrum
Empidonax virescens
Emydoidea blandingii
Encalypta procera
Epioblasma triquetra
Eptesicus fuscus
Erebia mancinus
Erigeron acris var. kamtschaticus
Erigeron lonchophyllus
Erimystax x-punctatus
Eryngium yuccifolium
Erynnis persius persius
Erythronium propullans
Escobaria vivipara
Etheostoma chlorosoma
Etheostoma microperca
Eupatorium sessilifolium
Euphrasia hudsoniana var. ramosior
Eurynia dilatata
Falco peregrinus
Fimbristylis autumnalis
Fimbristylis puberula var. interior
Floerkea proserpinacoides
Frullania selwyniana
Fundulus sciadicus
Gaillardia aristata
Gallinula galeata
Gastrocopta rogersensis
Gaylussacia baccata
Gentiana affinis
Gentianella amarella
Glyptemys insculpta
Goera stylata
Gymnocarpium robertianum
Gymnocladus dioica
Habronattus calcaratus maddisoni
Habronattus texanus
Habronattus viridipes
Haliaeetus leucocephalus
Hamamelis virginiana
Hasteola suaveolens
Helianthus nuttallii ssp. rydbergii
Hemidactylium scutatum
Hesperia assiniboia
Hesperia dacotae
Hesperia leonardus
Hesperia leonardus leonardus
Hesperia leonardus pawnee
Hesperia ottoe
Hesperia uncas
Heteranthera limosa
Heterocladium dimorphum
Heterodermia obscurata
Heterodon nasicus
Holocentropus glacialis
Holocentropus milaca
Hudsonia tomentosa
Huperzia appalachiana
Huperzia porophila
Hybanthus concolor
Hybognathus nuchalis
Hybopsis amnis
Hydrastis canadensis
Hydrocotyle americana
Hydroptila metoeca
Hydroptila novicola
Hydroptila quinola
Hydroptila rono
Hydroptila tortosa
Hydroptila waskesia
Hyophila involuta
Ichthyomyzon fossor
Ichthyomyzon gagei
Ictiobus niger
Iodanthus pinnatifidus
Ironoquia punctatissima
Isoetes melanopoda
Jaffueliobryum wrightii
Jeffersonia diphylla
Juglans cinerea
Juncus articulatus
Juncus marginatus
Juncus stygius var. americanus
Juncus subtilis
Juniperus horizontalis
Laccaria trullisata
Lactarius fuliginellus
Lampsilis higginsii
Lampsilis teres
Lanius ludovicianus
Lasmigona compressa
Lasmigona costata
Lecanora epanora
Lechea tenuifolia var. tenuifolia
Leersia lenticularis
Lepidostoma libum
Lepomis gulosus
Lepomis peltastes
Leptogium apalachense
Lescuraea saxicola
Lespedeza leptostachya
Leucophaeus pipixcan
Ligumia recta
Ligumia subrostrata
Limnephilus janus
Limnephilus rossi
Limnephilus secludens
Limosa fedoa
Limosella aquatica
Listera auriculata
Listera convallarioides
Littorella americana
Lobaria quercizans
Lobaria scrobiculata
Luzula parviflora
Lynx canadensis
Lysimachia maritima
Lysimachia quadrifolia
Lysurus cruciatus
Lythrurus umbratilis
Macrosteles clavatus
Malaxis monophyllos var. brachypoda
Malaxis paludosa
Marpissa formosa
Marpissa grata
Marsilea vestita
Meesia uliginosa
Megalonaias nervosa
Melanohalea subolivacea
Melica nitens
Menegazzia terebrata
Microtus ochrogaster
Microtus pinetorum
Minuartia dawsonensis
Moehringia macrophylla
Montia chamissoi
Morone mississippiensis
Moxostoma duquesnei
Muhlenbergia uniflora
Mustela nivalis
Myotis lucifugus
Myotis septentrionalis
Myriophyllum heterophyllum
Najas gracillima
Najas guadalupensis ssp. olivacea
Najas marina
Napaea dioica
Necturus maculosus
Notropis anogenus
Notropis nubilus
Notropis topeka
Noturus exilis
Novasuccinea n. sp. minnesota a
Novasuccinea n. sp. minnesota b
Nuttallanthus canadensis
Nymphaea leibergii
Oarisma garita
Oarisma poweshiek
Obovaria olivaria
Ochrolechia androgyna
Ochrotrichia spinosa
Oecetis ditissa
Oeneis uhleri varuna
Oenothera rhombipetala
Onychomys leucogaster
Ophiogomphus anomalus
Ophiogomphus howei
Ophiogomphus susbehcha
Opuntia macrorhiza
Orobanche fasciculata
Orobanche ludoviciana var. ludoviciana
Orobanche uniflora
Osmorhiza berteroi
Osmorhiza depauperata
Oxyethira ecornuta
Oxyethira itascae
Oxytropis viscida
Packera cana
Packera indecora
Panax quinquefolius
Pantherophis obsoletus
Paradamoetas fontanus
Parapsyche apicalis
Parkesia motacilla
Parmelia stictica
Parmelia stuppea
Paronychia canadensis
Paronychia fastigiata var. fastigiata
Parthenium integrifolium
Pelecanus erythrorhynchos
Pelegrina arizonensis
Pellaea atropurpurea
Peltigera venosa
Peltula bolanderi
Percina evides
Perimyotis subflavus
Perognathus flavescens
Persicaria careyi
Phacelia franklinii
Phalaropus tricolor
Phegopteris hexagonoptera
Phemeranthus rugospermus
Phenacobius mirabilis
Phenacomys ungava
Phidippus apacheanus
Phidippus pius
Phlox maculata
Physaria ludoviciana
Pinguicula vulgaris
Piptatherum canadense
Pituophis catenifer
Plagiobothrys scouleri var. penicillatus
Planogyra asteriscus
Plantago elongata
Platanthera clavellata
Platanthera flava var. herbiola
Platanthera praeclara
Platismatia glauca
Platygobio gracilis
Plebejus idas nabokovi
Plebejus melissa samuelis
Plestiodon fasciatus
Plethobasus cyphyus
Pleurobema sintoxia
Poa paludigena
Poa wolfii
Podiceps auritus
Pogonatum urnigerum
Polanisia jamesii
Polemonium occidentale ssp. lacustre
Polygala cruciata
Polyodon spathula
Polystichum acrostichoides
Polystichum braunii
Polytaenia nuttallii
Potamogeton bicupulatus
Potamogeton confervoides
Potamogeton diversifolius
Potamogeton oakesianus
Potamogeton pulcher
Potamogeton vaseyi
Prenanthes crepidinea
Progne subis
Prosartes trachycarpa
Prosopium coulterii
Protopannaria pezizoides
Protoptila erotica
Protoptila talola
Psathyrella cystidiosa
Psathyrella rhodospora
Pseudocyphellaria holarctica
Psoralidium tenuiflorum
Ptychostomum cyclophyllum
Puma concolor
Pyrgus centaureae freija
Pyrola minor
Quadrula fragosa
Quadrula nodulata
Quercus bicolor
Rallus elegans
Ramalina roesleri
Ramalina thrausta
Ranunculus lapponicus
Reginaia ebenus
Reithrodontomys megalotis
Rhodiola integrifolia ssp. leedyi
Rhynchospora capillacea
Rhynchospora fusca
Rorippa sessiliflora
Rotala ramosior
Rubus chamaemorus
Rubus fulleri
Rubus missouricus
Rubus multifer
Rubus quaesitus
Rubus semisetosus
Rubus stipulatus
Rubus vermontanus
Rudbeckia triloba var. triloba
Ruellia humilis
Ruppia cirrhosa
Sagina nodosa ssp. borealis
Sagittaria brevirostra
Sagittaria calycina var. calycina
Salicornia rubra
Salix maccalliana
Salix pellita
Salix pseudomonticola
Sanicula trifoliata
Sarcosoma globosum
Sassacus papenhoei
Saxifraga cernua
Saxifraga paniculata
Schedonnardus paniculatus
Schinia indiana
Schinia lucens
Schistostega pennata
Scleria triglomerata
Scleria verticillata
Scutellaria ovata var. versicolor
Selaginella selaginoides
Setodes guttatus
Setophaga cerulea
Setophaga citrina
Shepherdia canadensis
Shinnersoseris rostrata
Silene drummondii ssp. drummondii
Silene nivea
Simpsonaias ambigua
Sistrurus catenatus
Solidago mollis
Solidago sciaphila
Somatochlora brevicincta
Somatochlora forcipata
Sorex fumeus
Sparganium glomeratum
Speyeria idalia
Sphagnum compactum
Sphagnum lescurii
Spilogale putorius
Spiranthes casei var. casei
Splachnum rubrum
Stellaria longipes ssp. longipes
Stereocaulon pileatum
Sterna forsteri
Sterna hirundo
Sticta fuliginosa
Striatura ferrea
Stuckenia vaginata
Subularia aquatica ssp. americana
Suillus weaverae
Sullivantia sullivantii
Symphoricarpos orbiculatus
Symphyotrichum shortii
Synaptomys borealis
Taenidia integerrima
Tephrosia virginiana
Thaspium barbinode
Thelia hirtella
Theliderma metanevra
Thelocarpon epibolum
Thomomys talpoides
Tofieldia pusilla
Tomentypnum falcifolium
Torreyochloa pallida
Tortella inclinata
Triaenodes flavescens
Trichocolea tomentella
Trichophorum clintonii
Trillium nivale
Triplasis purpurea var. purpurea
Trisetum spicatum
Tritogonia verrucosa
Tropidoclonion lineatum
Truncilla donaciformis
Tsuga canadensis
Tutelina formicaria
Tympanuchus cupido
Umbilicaria torrefacta
Urocitellus richardsonii
Usnea longissima
Usnea mutabilis
Usnea rubicunda
Utricularia geminiscapa
Utricularia purpurea
Utricularia resupinata
Utterbackiana suborbiculata
Vaccinium uliginosum
Valeriana edulis var. ciliata
Venustaconcha ellipsiformis
Verbena simplex
Vertigo hubrichti hubrichti
Vertigo hubrichti variabilis n. subsp.
Vertigo meramecensis
Viola lanceolata var. lanceolata
Viola nuttallii
Vireo bellii
Vitis aestivalis var. argentifolia
Waldsteinia fragarioides var. fragarioides
Woodsia alpina
Woodsia glabella
Woodsia oregana ssp. cathcartiana
Woodsia scopulina ssp. laurentiana
Xanthisma spinulosum var. spinulosum
Xyris montana
Xyris torta
Ylodes frontalis
Zonitoides limatulus

Back to top