List of Canadian plants by family A

Main page: List of Canadian plants by family

This is a dynamic list and may never be able to satisfy particular standards for completeness. You can help by expanding it with reliably sourced entries.

Families: A | B | C | D | E | F | G | H | I J K | L | M | N | O | P Q | R | S | T | U V W | X Y Z

Acanthaceae

Justicia americana — common water-willow

Aceraceae

Acer circinatum — vine maple
Acer glabrum — Douglas maple
Acer macrophyllum — bigleaf maple
Acer negundo — box-elder
Acer nigrum — black maple
Acer pensylvanicum — striped maple

Acer rubrum — red maple
Acer saccharinum — silver maple
Acer saccharum — sugar maple
Acer spicatum — mountain maple
Acer x freemanii — Freeman's maple

Acoraceae

Acorus americanus — sweetflag

Adelanthaceae

Odontoschisma denudatum
Odontoschisma elongatum
Odontoschisma gibbsiae

Odontoschisma macounii
Odontoschisma sphagni

Adoxaceae

Adoxa moschatellina — muskroot
Viburnum acerifolium — mapleleaf viburnum
Viburnum edule — squashberry
Viburnum lantanoides — alderleaf viburnum
Viburnum lentago — nannyberry
Viburnum nudum — possum-haw viburnum
Viburnum opulus — guelder-rose viburnum
Viburnum rafinesquianum — downy arrowwood
Viburnum recognitum — northern arrowwood

Agavaceae

Yucca filamentosa — common yucca

Yucca glauca — small soapweed yucca

Alismataceae

Alisma gramineum — narrowleaf water-plantain
Alisma subcordatum — broad-leaved water-plantain
Alisma triviale — northern water-plantain
Sagittaria brevirostra — short-beaked arrowhead
Sagittaria calycina — longlobe arrowhead

Sagittaria cristata — crested arrowhead
Sagittaria cuneata — Wapatum arrowhead
Sagittaria graminea — grassleaf arrowhead
Sagittaria latifolia — broadleaf arrowhead
Sagittaria rigida — sessile-fruit arrowhead

Amaranthaceae

Amaranthus albus — white pigweed
Amaranthus californicus — California amaranth
Amaranthus powellii — green amaranth

Amaranthus rudis — tall amaranth
Amaranthus tuberculatus — roughfruit amaranth

Amblystegiaceae

Amblystegium serpens — amblystegium moss
Amblystegium varium
Calliergon cordifolium — calliergon moss
Calliergon giganteum — giant calliergon moss
Calliergon megalophyllum
Calliergon obtusifolium
Calliergon orbicularicordatum
Calliergon richardsonii
Calliergon stramineum
Calliergon trifarium
Calliergonella cuspidata
Campylium cardotii
Campylium chrysophyllum
Campylium halleri
Campylium hispidulum
Campylium polygamum — campylium moss
Campylium radicale
Campylium stellatum — yellow starry fen moss
Conardia compacta
Cratoneuron filicinum
Drepanocladus aduncus — drepanocladus moss
Drepanocladus brevifolius
Drepanocladus capillifolius
Drepanocladus crassicostatus
Drepanocladus sendtneri
Hamatocaulis lapponicus
Hamatocaulis vernicosus
Hygroamblystegium fluviatile
Hygroamblystegium noterophilum
Hygroamblystegium tenax
Hygrohypnum alpestre
Hygrohypnum alpinum
Hygrohypnum bestii

Hygrohypnum cochlearifolium
Hygrohypnum duriusculum
Hygrohypnum eugyrium
Hygrohypnum luridum
Hygrohypnum micans
Hygrohypnum molle
Hygrohypnum montanum
Hygrohypnum norvegicum
Hygrohypnum ochraceum
Hygrohypnum polare
Hygrohypnum smithii
Hygrohypnum styriacum
Hygrohypnum subeugyrium
Leptodictyum humile
Leptodictyum riparium
Limprichtia cossonii
Limprichtia revolvens — limprichtia moss
Loeskypnum badium
Loeskypnum wickesiae
Palustriella commutata
Palustriella decipiens
Platylomella lescurii
Pseudocalliergon turgescens
Sanionia uncinata
Sarmenthypnum sarmentosum
Scorpidium scorpioides
Warnstorfia exannulata — warnstorfia moss
Warnstorfia fluitans — warnstorfia moss
Warnstorfia procera
Warnstorfia pseudostraminea
Warnstorfia trichophylla
Warnstorfia tundrae

Anacardiaceae

Rhus aromatica — fragrant sumac
Rhus copallinum — winged sumac
Rhus glabra — smooth sumac
Rhus trilobata — skunkbush
Rhus typhina — staghorn sumac

Rhus x pulvinata
Toxicodendron diversilobum — western poison-oak
Toxicodendron radicans — eastern poison-ivy
Toxicodendron rydbergii — northern poison-oak
Toxicodendron vernix — poison-sumac

Andreaeaceae

Andreaea alpestris
Andreaea blyttii
Andreaea crassinervia
Andreaea heinemannii
Andreaea megistospora
Andreaea mutabilis

Andreaea nivalis
Andreaea obovata
Andreaea rothii
Andreaea rupestris
Andreaea schofieldiana
Andreaea sinuosa

Andreaeobryaceae

Andreaeobryum macrosporum

Aneuraceae

Aneura pinguis
Riccardia chamedryfolia
Riccardia latifrons

Riccardia multifida — comb liverwort
Riccardia palmata

Annonaceae

Asimina triloba — pawpaw

Anomodontaceae

Anomodon attenuatus
Anomodon minor
Anomodon rostratus
Anomodon rugelii

Anomodon viticulosus
Haplohymenium triste
Pterogonium gracile

Antheliaceae

Anthelia julacea

Anthelia juratzkana

Anthocerotaceae

Anthoceros agrestis
Anthoceros fusiformis

Anthoceros macounii

Apiaceae

Angelica archangelica — Norwegian angelica
Angelica arguta — Lyall's angelica
Angelica atropurpurea — great angelica
Angelica dawsonii — Dawson's angelica
Angelica genuflexa — kneeling angelica
Angelica laurentiana — St. Lawrence angelica
Angelica lucida — seacoast angelica
Angelica venenosa — hairy angelica
Berula erecta — wild parsnip
Bupleurum americanum — American thorowax
Chaerophyllum procumbens — spreading chervil
Chaerophyllum tainturieri — Tainturier's chervil
Cicuta bulbifera — bulb-bearing water-hemlock
Cicuta douglasii — western water-hemlock
Cicuta maculata — spotted water-hemlock
Cicuta virosa — MacKenzie's water-hemlock
Cnidium cnidiifolium — Jakutsk snow parsley
Conioselinum chinense — Chinese hemlock-parsley
Conioselinum gmelinii — western hemlock-parsley
Cryptotaenia canadensis — Canada honewort
Cymopterus acaulis — plains wavewing
Daucus pusillus — southwestern carrot
Erigenia bulbosa — harbinger-of-spring
Glehnia littoralis — American glehnia
Heracleum maximum — cow-parsnip
Hydrocotyle americana — American water-pennywort
Hydrocotyle umbellata — many-flowered pennywort
Hydrocotyle verticillata — whorled pennywort
Ligusticum calderi — Calder's lovage
Ligusticum canbyi — Canby's wild lovage
Ligusticum scoticum — Scotch lovage
Ligusticum verticillatum — Idaho lovage
Lilaeopsis chinensis — eastern lilæopsis
Lilaeopsis occidentalis — western lilæopsis
Lomatium ambiguum — streambank desert-parsley
Lomatium brandegeei — Brandegee's desert-parsley
Lomatium cous — cousroot desert-parsley
Lomatium dissectum — fernleaf desert-parsley
Lomatium foeniculaceum — carrotleaf desert-parsley

Lomatium geyeri — Geyer's desert-parsley
Lomatium grayi — mountain desert-parsley
Lomatium macrocarpum — largefruit desert-parsley
Lomatium martindalei — coast range lomatium
Lomatium nudicaule — nakedstem desert-parsley
Lomatium orientale — Oriental desert-parsley
Lomatium sandbergii — Sandberg's desert-parsley
Lomatium simplex — umbrella desert-parsley
Lomatium triternatum — ternate desert-parsley
Lomatium utriculatum — foothill desert-parsley
Musineon divaricatum — wild parsley
Oenanthe sarmentosa — water-parsley
Osmorhiza berteroi — Chilean sweet-cicely
Osmorhiza claytonii — hairy sweet-cicely
Osmorhiza depauperata — bluntfruit sweet-cicely
Osmorhiza longistylis — smoother sweet-cicely
Osmorhiza occidentalis — western sweet-cicely
Osmorhiza purpurea — purple sweet-cicely
Oxypolis occidentalis — western cowbane
Oxypolis rigidior — stiff cowbane
Perideridia gairdneri — Gairdner's yampah
Podistera macounii — Macoun's podistera
Podistera yukonensis — Yukon podistera
Sanicula arctopoides — bear's-foot sanicle
Sanicula bipinnatifida — purple black snakeroot
Sanicula canadensis — short-styled sanicle
Sanicula crassicaulis — Pacific black snakeroot
Sanicula graveolens — sierra sanicle
Sanicula marilandica — Maryland black snakeroot
Sanicula odorata — clustered black snakeroot
Sanicula trifoliata — large-fruited sanicle
Sium suave — hemlock water-parsnip
Taenidia integerrima — yellow pimpernel
Thaspium barbinode — hairyjoint meadow-parsnip
Thaspium trifoliatum — purple meadow-parsnip
Yabea microcarpa — California hedge-parsley
Zizia aptera — golden alexanders
Zizia aurea — common alexanders

Apocynaceae

Apocynum androsaemifolium — spreading dogbane
Apocynum cannabinum — clasping-leaf dogbane

Apocynum x floribundum — hybrid dogbane

Aquifoliaceae

Ilex glabra — ink-berry
Ilex verticillata — black holly

Nemopanthus mucronatus — mountain holly

Araceae

Arisaema dracontium — green dragon
Arisaema triphyllum — swamp Jack-in-the-pulpit
Calla palustris — wild calla

Lysichiton americanus — yellow skunk-cabbage
Peltandra virginica — green arrow-arum
Symplocarpus foetidus — skunk-cabbage

Araliaceae

Aralia hispida — bristly sarsaparilla
Aralia nudicaulis — wild sarsaparilla
Aralia racemosa — American spikenard

Oplopanax horridus — Devil's-club
Panax quinquefolius — American ginseng
Panax trifolius — dwarf ginseng

Archidiaceae

Archidium ohioense

Aristolochiaceae

Asarum canadense — Canada wild-ginger

Asarum caudatum — long-tailed wild-ginger

Arnelliaceae

Arnellia fennica

Asclepiadaceae

Asclepias exaltata — poke milkweed
Asclepias hirtella — green milkweed
Asclepias incarnata — swamp milkweed
Asclepias lanuginosa — woolly milkweed
Asclepias ovalifolia — dwarf milkweed
Asclepias purpurascens — purple milkweed
Asclepias quadrifolia — whorled milkweed

Asclepias speciosa — showy milkweed
Asclepias sullivantii — prairie milkweed
Asclepias syriaca — Kansas milkweed
Asclepias tuberosa — butterfly milkweed
Asclepias verticillata — whorled milkweed
Asclepias viridiflora — green milkweed

Aspleniaceae

Asplenium adulterinum — ladder spleenwort
Asplenium platyneuron — ebony spleenwort
Asplenium rhizophyllum — walking-fern spleenwort
Asplenium ruta-muraria — wallrue spleenwort

Asplenium scolopendrium — hart's-tongue fern
Asplenium trichomanes — maidenhair spleenwort
Asplenium viride — green spleenwort

Asteraceae

Achillea millefolium — common yarrow
Achillea sibirica — Siberian yarrow
Adenocaulon bicolor — American trail-plant
Ageratina altissima — white snakeroot
Agoseris aurantiaca — orange-flowered false-dandelion
Agoseris gaspensis — Gaspé Peninsula agoseris
Agoseris glauca — pale goat-chicory
Agoseris grandiflora — largeflower false-dandelion
Agoseris heterophylla — annual false-dandelion
Agoseris lackschewitzii — pink agoseris
Almutaster pauciflorus — marsh alkali aster
Ambrosia acanthicarpa — flatspine bursage
Ambrosia artemisiifolia — annual ragweed
Ambrosia chamissonis — silver bursage
Ambrosia coronopifolia — western ragweed
Ambrosia psilostachya — nakedspike ambrosia
Ambrosia trifida — great ragweed
Ambrosia x helenae
Anaphalis margaritacea — pearly everlasting
Antennaria alpina — alpine pussytoes
Antennaria anaphaloides — handsome pussytoes
Antennaria aromatica — aromatic pussytoes
Antennaria corymbosa — meadow pussytoes
Antennaria densifolia — dense-leaved antennaria
Antennaria dimorpha — two-form pussytoes
Antennaria eucosma — Newfoundland pussytoes
Antennaria flagellaris — stoloniferous pussytoes
Antennaria friesiana — Fries' pussytoes
Antennaria howellii — small pussytoes
Antennaria lanata — white-margined pussytoes
Antennaria luzuloides — silvery-brown pussytoes
Antennaria media — Stony Mountain pussytoes
Antennaria microphylla — small-leaf cat's-foot
Antennaria monocephala — single-head pussytoes
Antennaria neglecta — field pussytoes
Antennaria parlinii — Parlin's pussytoes
Antennaria parvifolia — Nuttall's pussytoes
Antennaria plantaginifolia — plantainleaf pussytoes
Antennaria pulcherrima — handsome pussytoes
Antennaria racemosa — Hooker's pussytoes
Antennaria rosea — rosy pussytoes
Antennaria stenophylla — narrowleaf pussytoes
Antennaria umbrinella — brown pussytoes
Antennaria x erigeroides
Antennaria x macounii
Antennaria x rousseaui
Arnica amplexicaulis — streambank arnica
Arnica angustifolia — narrowleaf leopardbane
Arnica chamissonis — leafy arnica
Arnica cordifolia — heart-leaved arnica
Arnica frigida — snow leopardbane
Arnica fulgens — hillside arnica
Arnica gracilis — slender leopardbane
Arnica lanceolata
Arnica latifolia — mountain arnica
Arnica lessingii — Lessing's arnica
Arnica lonchophylla — northern arnica
Arnica longifolia — longleaf arnica
Arnica louiseana — Lake Louise arnica
Arnica mollis — hairy arnica
Arnica parryi — nodding arnica
Arnica rydbergii — subalpine arnica
Arnica sororia — twin arnica
Arnica x diversifolia — rayless arnica
Arnoglossum plantagineum — Indian-plantain
Artemisia alaskana — Alaska wormwood
Artemisia arctica — boreal sagebrush
Artemisia biennis — biennial wormwood
Artemisia campestris — Pacific wormwood
Artemisia cana — hoary sagebrush
Artemisia dracunculus — dragon wormwood
Artemisia frigida — prairie sagebrush
Artemisia furcata — three-fork wormwood
Artemisia globularia — arctic wormwood
Artemisia glomerata — Pacific alpine wormwood
Artemisia laciniata — Siberian wormwood
Artemisia lindleyana — Columbia River wormwood
Artemisia longifolia — longleaf wormwood
Artemisia ludoviciana — white sagebrush
Artemisia michauxiana — Michaux's wormwood
Artemisia rupestris — rock wormwood
Artemisia suksdorfii — coastal wormwood
Artemisia tilesii — Tilesius' wormwood
Artemisia tridentata — big sagebrush
Artemisia tripartita — three-tip sagebrush
Aster alpinus — alpine aster
Baccharis halimifolia — eastern baccharis
Balsamorhiza deltoidea — deltoid balsamroot
Balsamorhiza sagittata — arrowleaf balsamroot
Bidens amplissima — Vancouver Island beggarticks
Bidens cernua — nodding beggarticks
Bidens connata — purplestem beggarticks
Bidens coronata — tickseed sunflower
Bidens discoidea — swamp beggarticks
Bidens eatonii — Eaton's beggarticks
Bidens frondosa — Devil's beggarticks
Bidens heterodoxa — Connecticut beggarticks
Bidens hyperborea — estuary beggarticks
Bidens tripartita — three-lobe beggarticks
Bidens vulgata — tall bur-marigold
Boltonia asteroides — aster-like boltonia
Brickellia grandiflora — tassel flower
Brickellia oblongifolia — narrowleaf brickell-bush
Cacaliopsis nardosmia — silvercrown
Canadanthus modestus — great northern aster
Chaenactis douglasii — hoary pincushion
Chrysothamnus viscidiflorus — sticky-leaf rabbitbrush
Cirsium brevistylum — shortstyle thistle
Cirsium canescens — prairie thistle
Cirsium discolor — field thistle
Cirsium drummondii — Drummond's thistle
Cirsium edule — edible thistle
Cirsium flodmanii — Flodman's thistle
Cirsium foliosum — leafy thistle
Cirsium hillii — Hill's thistle
Cirsium hookerianum — Hooker's thistle
Cirsium muticum — swamp thistle
Cirsium pitcheri — dune thistle
Cirsium scariosum
Cirsium undulatum — nodding thistle
Cirsium x vancouverense
Conyza canadensis — Canada horseweed
Coreopsis lanceolata — sand coreopsis
Coreopsis rosea — rose coreopsis
Coreopsis tinctoria — golden tickseed
Coreopsis tripteris — tall tickseed
Crepis atribarba — slender hawk's-beard
Crepis elegans — elegant hawk's-beard
Crepis intermedia — smallflower hawk's-beard
Crepis modocensis — Siskiyou hawk's-beard
Crepis nana — dwarf alpine hawk's-beard
Crepis occidentalis — grey hawk's-beard
Crepis runcinata — nakedstem hawk's-beard
Crocidium multicaule — common spring-gold
Dendranthema arcticum — arctic daisy
Doellingeria umbellata — flat-top white aster
Echinacea angustifolia — narrow-leaved purple coneflower
Echinacea pallida — pale purple coneflower
Eclipta prostrata — false daisy
Erechtites hieraciifolia — fireweed
Ericameria nauseosa — rubber rabbitbrush
Erigeron acris — bitter fleabane
Erigeron alpiniformis — alpine fleabane
Erigeron annuus — whitetop fleabane
Erigeron asper — rough fleabane
Erigeron aureus — alpine yellow fleabane
Erigeron borealis — boreal fleabane
Erigeron caespitosus — cæspitose fleabane
Erigeron compositus — dwarf mountain fleabane
Erigeron corymbosus — longleaf fleabane
Erigeron divergens — spreading fleabane
Erigeron elatus — tall bitter fleabane
Erigeron evermannii — Evermann's fleabane
Erigeron filifolius — threadleaf fleabane
Erigeron flagellaris — running fleabane
Erigeron formosissimus — beautiful fleabane
Erigeron glabellus — smooth fleabane
Erigeron grandiflorus — largeflower fleabane
Erigeron humilis — low fleabane
Erigeron hyperboreus — hyperboreal fleabane
Erigeron hyssopifolius — daisy fleabane
Erigeron lackschewitzii — front range fleabane
Erigeron lanatus — woolly fleabane
Erigeron leibergii — Leiberg's fleabane
Erigeron linearis — linearleaf fleabane
Erigeron lonchophyllus — short-ray fleabane
Erigeron mexiae — Mex' fleabane
Erigeron ochroleucus — buff fleabane
Erigeron pallens — pale fleabane
Erigeron peregrinus — foreign fleabane
Erigeron philadelphicus — Philadelphia fleabane
Erigeron poliospermus — hairyseed fleabane
Erigeron pulchellus — robin's-plantain
Erigeron pumilus — shaggy fleabane
Erigeron purpuratus — purple fleabane
Erigeron radicatus — tap-rooted fleabane
Erigeron salishii — Salish's daisy
Erigeron scotteri — Scotter's fleabane
Erigeron speciosus — Aspen fleabane
Erigeron strigosus — daisy fleabane
Erigeron subtrinervis — three-nerve fleabane
Erigeron uniflorus — one-flower fleabane
Erigeron x arthurii
Erigeron yukonensis — Yukon fleabane
Eriophyllum lanatum — common woolly-sunflower
Eucephalus engelmannii — Engelmann's aster
Eucephalus paucicapitatus — olympic aster
Eupatorium altissimum — tall boneset
Eupatorium dubium — joe-pye thoroughwort
Eupatorium fistulosum — hollow joe-pyeweed
Eupatorium maculatum — spotted joe-pyeweed
Eupatorium perfoliatum — common boneset
Eupatorium purpureum — sweet joe-pyeweed
Eupatorium x truncatum
Eurybia conspicua — showy aster
Eurybia divaricata — white wood-aster
Eurybia macrophylla — largeleaf wood-aster
Eurybia merita — arctic aster
Eurybia pygmaea — pygmy wood-aster
Eurybia radula — rough wood-aster
Eurybia radulina — roughleaf aster
Eurybia schreberi — Schreiber's aster
Eurybia sibirica — Siberian aster
Euthamia caroliniana — slender fragrant goldenrod
Euthamia galetorum — narrowleaf fragrant goldenrod
Euthamia graminifolia — flat-top fragrant goldenrod
Euthamia gymnospermoides — viscid bushy goldenrod
Euthamia occidentalis — western fragrant goldenrod
Gaillardia aristata — great blanket-flower
Gaillardia pulchella — firewheel blanket-flower
Gamochaeta ustulata — featherweed
Gnaphalium obtusifolium — fragrant cudweed
Gnaphalium palustre — western marsh cudweed
Gnaphalium viscosum — winged cudweed
Grindelia hirsutula — hairy gumweed
Grindelia integrifolia — Puget Sound gumweed
Grindelia nana — Idaho gumweed
Grindelia nuda — curly-top gumweed
Grindelia squarrosa — broadleaf gumweed
Grindelia stricta — Oregon gumweed
Gutierrezia sarothrae — broom snakeweed
Helenium autumnale — common sneezeweed
Helianthella uniflora — Rocky Mountain rockrose
Helianthus annuus — common sunflower
Helianthus couplandii — Coupland's sunflower
Helianthus decapetalus — thin-leaved sunflower
Helianthus divaricatus — woodland sunflower
Helianthus giganteus — tall sunflower
Helianthus maximiliani — Maximillian's sunflower
Helianthus nuttallii — Nuttall's sunflower
Helianthus pauciflorus — stiff sunflower
Helianthus petiolaris — prairie sunflower
Helianthus strumosus — paleleaf sunflower
Helianthus tuberosus — Jerusalem artichoke
Helianthus x alexidis
Helianthus x laetiflorus — hybrid prairie sunflower
Helianthus x luxurians
Heliopsis helianthoides — smooth oxeye
Heterotheca villosa — hairy false goldenaster
Hieracium albiflorum — whiteflower hawkweed
Hieracium canadense — Canada hawkweed
Hieracium cynoglossoides — hound's-tongue hawkweed
Hieracium gracile — alpine hawkweed
Hieracium groenlandicum — Greenland hawkweed
Hieracium gronovii — hairy hawkweed

Hieracium kalmii — Kalm's hawkweed
Hieracium laevigatum — smooth hawkweed
Hieracium marianum — Maryland hawkweed
Hieracium paniculatum — panicled hawkweed
Hieracium plicatum — boreal hawkweed
Hieracium robinsonii — Robinson's hawkweed
Hieracium scabrum — rough hawkweed
Hieracium scouleri — Scouler's hawkweed
Hieracium triste — woolly hawkweed
Hieracium umbellatum — umbellate hawkweed
Hieracium venosum — rattlesnake hawkweed
Hieracium x dutillyanum
Hieracium x fassettii
Hieracium x fernaldii
Hieracium x flagellare
Hieracium x grohii
Hieracium x stoloniflorum
Hymenopappus filifolius — fineleaf woolly-white
Hymenoxys richardsonii — Richardson's bitterweed
Ionactis linariifolius — flaxleaf aster
Ionactis stenomeres — Rocky Mountain aster
Iva axillaris — small-flowered marsh-elder
Iva frutescens — bigleaf marsh-elder
Jaumea carnosa — fleshy jaumea
Krigia biflora — two-flower dwarf-dandelion
Krigia virginica — Virginia dwarf-dandelion
Lactuca biennis — tall blue lettuce
Lactuca canadensis — Canada lettuce
Lactuca floridana — woodland lettuce
Lactuca hirsuta — hairy lettuce
Lactuca ludoviciana — western lettuce
Lactuca tatarica — Tartarian lettuce
Lactuca terrae-novae — Newfoundland lettuce
Lasthenia maritima — maritime goldfields
Leucanthemum integrifolium — entire-leaf daisy
Liatris aspera — tall gayfeather
Liatris cylindracea — slender blazingstar
Liatris ligulistylis — strapstyle gayfeather
Liatris punctata — dotted gayfeather
Liatris spheroidea — spherical gayfeather
Liatris spicata — marsh blazingstar
Liatris x creditonensis
Liatris x gladewitzii
Luina hypoleuca — littleleaf silverback
Lygodesmia juncea — rush skeletonplant
Machaeranthera canescens — hoary tansy-aster
Machaeranthera grindelioides — western aster
Machaeranthera pinnatifida — spiny goldenaster
Madia exigua — little tarweed
Madia glomerata — mountain tarweed
Madia gracilis — grassy tarweed
Madia madioides — woodland tarweed
Madia minima — smallhead tarweed
Matricaria discoidea — pineapple-weed chamomile
Megalodonta beckii — Beck's water-marigold
Microseris bigelovii — coast microseris
Microseris borealis — northern microseris
Microseris lindleyi — Lindley's silverpuffs
Microseris nutans — nodding silverpuffs
Mikania scandens — climbing hempweed
Nothocalais cuspidata — prairie false-dandelion
Nothocalais troximoides — weevil false-dandelion
Oclemena acuminata — whorled aster
Oclemena nemoralis — bog aster
Oclemena x blakei — Blake's aster
Oligoneuron album — prairie goldenrod
Oligoneuron houghtonii — Houghton's goldenrod
Oligoneuron ohioense — Ohio goldenrod
Oligoneuron riddellii — Riddell's goldenrod
Oligoneuron rigidum — stiff goldenrod
Oligoneuron x bernardii
Oligoneuron x krotkovii
Oligoneuron x lutescens — upland aster
Oligoneuron x maheuxii
Omalotheca norvegica — Norwegian cudweed
Omalotheca supina — alpine cudweed
Omalotheca sylvatica — woodland cudweed
Packera aurea — golden ragwort
Packera cana — silvery ragwort
Packera contermina — northwestern groundsel
Packera cymbalaria — dwarf arctic groundsel
Packera hyperborealis — boreal groundsel
Packera indecora — plains ragwort
Packera macounii — Siskiyou Mountains butterweed
Packera moresbiensis — Queen Charlotte groundsel
Packera obovata — roundleaf groundsel
Packera ogotorukensis — Ogotoruk Creek groundsel
Packera pauciflora — few-flower ragwort
Packera paupercula — balsam ragwort
Packera plattensis — prairie ragwort
Packera pseudaurea — western golden groundsel
Packera schweinitziana — Robbin's squawweed
Packera streptanthifolia — cleftleaf ragwort
Packera tridenticulata — three-tooth groundsel
Petasites frigidus — arctic butterbur
Petasites sagittatus — arrowleaf sweet colt's-foot
Petasites x vitifolius
Picradeniopsis oppositifolia — oppositeleaf false bahia
Polymnia canadensis — whiteflower leafcup
Prenanthes alata — western rattlesnake-root
Prenanthes alba — white rattlesnake-root
Prenanthes altissima — tall rattlesnake-root
Prenanthes nana — dwarf rattlesnake-root
Prenanthes racemosa — glaucous rattlesnake-root
Prenanthes sagittata — arrowleaf rattlesnake-root
Prenanthes trifoliolata — three-leaved rattlesnake-root
Prenanthes x mainensis
Pseudognaphalium canescens — Wright's cudweed
Psilocarphus brevissimus — round woolly-heads
Psilocarphus elatior — tall woolly-heads
Psilocarphus tenellus — slender woolly-heads
Pyrrocoma carthamoides — largeflower goldenweed
Pyrrocoma lanceolata — lance-leaved goldenweed
Pyrrocoma uniflora — plantain goldenweed
Ratibida columnifera — upright prairie coneflower
Ratibida pinnata — greyhead prairie coneflower
Rudbeckia fulgida — orange coneflower
Rudbeckia hirta — black-eyed susan
Rudbeckia laciniata — cut-leaved coneflower
Saussurea americana — American saw-wort
Saussurea angustifolia — narrowleaf saw-wort
Saussurea densa — clustered saw-wort
Saussurea viscida — sticky saw-wort
Senecio congestus — marsh ragwort
Senecio cymbalarioides — cleftleaf groundsel
Senecio elmeri — Elmer's ragwort
Senecio eremophilus — desert groundsel
Senecio fremontii — Fremont's ragwort
Senecio hydrophiloides — sweet marsh ragwort
Senecio hydrophilus — great swamp ragwort
Senecio integerrimus — entire-leaf ragwort
Senecio lugens — blacktip groundsel
Senecio megacephalus — Nuttall's ragwort
Senecio pseudoarnica — seabeach groundsel
Senecio sheldonensis — Mount Sheldon groundsel
Senecio triangularis — arrowleaf groundsel
Sericocarpus rigidus — Curtus' aster
Shinnersoseris rostrata — annual skeletonweed
Silphium laciniatum — compass plant
Silphium perfoliatum — cup-plant
Silphium terebinthinaceum — prairie rosinweed
Sinosenecio newcombei — Newcombe's groundsel
Solidago altissima — tall goldenrod
Solidago arguta — cutleaf goldenrod
Solidago bicolor — white goldenrod
Solidago caesia — bluestem goldenrod
Solidago calcicola — rock goldenrod
Solidago canadensis — Canada goldenrod
Solidago cutleri — Cutler's goldenrod
Solidago flexicaulis — broad-leaved goldenrod
Solidago gigantea — smooth goldenrod
Solidago hispida — hairy goldenrod
Solidago juncea — early goldenrod
Solidago latissimifolia — Elliott's goldenrod
Solidago macrophylla — largeleaf goldenrod
Solidago missouriensis — Missouri goldenrod
Solidago mollis — ground goldenrod
Solidago multiradiata — alpine goldenrod
Solidago nemoralis — field goldenrod
Solidago patula — roundleaf goldenrod
Solidago puberula — downy goldenrod
Solidago rugosa — roughleaf goldenrod
Solidago sempervirens — seaside goldenrod
Solidago simplex — sticky goldenrod
Solidago speciosa — showy goldenrod
Solidago squarrosa — squarrose goldenrod
Solidago uliginosa — bog goldenrod
Solidago ulmifolia — elmleaf goldenrod
Solidago victorinii — Victorin's goldenrod
Solidago x asperula
Solidago x beaudryi
Solidago x erskinei
Solidago x luteus
Solidago x raymondii
Stenotus acaulis — stemless mock goldenweed
Stenotus armerioides — thrift mock goldenweed
Stenotus macleanii — MacLean's goldenweed
Stephanomeria minor — narrowleaf skeletonplant
Stephanomeria runcinata — desert skeletonplant
Stephanomeria spinosa — thorny wire-lettuce
Symphyotrichum anticostense — Anticosti aster
Symphyotrichum ascendens — western aster
Symphyotrichum boreale — boreal aster
Symphyotrichum campestre — western meadow-aster
Symphyotrichum ciliatum — alkali American-aster
Symphyotrichum ciliolatum — Lindley's aster
Symphyotrichum cordifolium — heartleaf aster
Symphyotrichum dumosum — bushy aster
Symphyotrichum eatonii — Eaton's aster
Symphyotrichum ericoides — white heath aster
Symphyotrichum falcatum — white prairie aster
Symphyotrichum foliaceum — leafy-bracted aster
Symphyotrichum frondosum — alkali aster
Symphyotrichum hendersonii — Henderson's American-aster
Symphyotrichum laeve — smooth blue aster
Symphyotrichum lanceolatum — panicled aster
Symphyotrichum lateriflorum — starved aster
Symphyotrichum laurentianum — St. Lawrence aster
Symphyotrichum novae-angliae — New England aster
Symphyotrichum novi-belgii — longleaf aster
Symphyotrichum ontarionis — Ontario aster
Symphyotrichum oolentangiense — sky blue aster
Symphyotrichum pilosum — white heath aster
Symphyotrichum praealtum — willow aster
Symphyotrichum prenanthoides — crooked-stem aster
Symphyotrichum puniceum — swamp aster
Symphyotrichum racemosum — small white aster
Symphyotrichum robynsianum — Robyns' American-aster
Symphyotrichum sericeum — western silvery aster
Symphyotrichum shortii — Short's aster
Symphyotrichum spathulatum — western mountain aster
Symphyotrichum subspicatum — Douglas' aster
Symphyotrichum subulatum — annual saltmarsh aster
Symphyotrichum tradescantii — Tradescant's aster
Symphyotrichum undulatum — wavyleaf aster
Symphyotrichum urophyllum — white-arrow aster
Symphyotrichum x amethystinum
Symphyotrichum yukonense — Yukon aster
Tanacetum bipinnatum — Lake Huron tansy
Taraxacum carneocoloratum — pink dandelion
Taraxacum eriophorum — wool-bearing dandelion
Taraxacum lyratum — alpine dandelion
Taraxacum officinale — common dandelion
Taraxacum phymatocarpum — northern dandelion
Tephroseris atropurpurea — dark purple groundsel
Tephroseris kjellmanii — Kjellman's squawweed
Tephroseris lindstroemii — twice-hairy groundsel
Tephroseris yukonensis — Yukon groundsel
Tetradymia canescens — grey horsebrush
Tetraneuris acaulis — stemless four-nerve daisy
Tetraneuris herbacea — lakeside daisy
Thelesperma subnudum — border goldthread
Tonestus lyallii — Lyall's haplopappus
Townsendia condensata — cushion townsend-daisy
Townsendia exscapa — silky townsend-daisy
Townsendia hookeri — Hooker's townsend-daisy
Townsendia parryi — Parry's townsend-daisy
Tripleurospermum maritima — false chamomile
Verbesina alternifolia — wingstem
Vernonia fasciculata — fascicled ironweed
Vernonia gigantea — giant ironweed
Vernonia missurica — Missouri ironweed
Xanthium strumarium — rough cocklebur

Aulacomniaceae

Aulacomnium acuminatum — acutetip aulacomnium moss
Aulacomnium androgynum

Aulacomnium heterostichum
Aulacomnium palustre — aulacomnium moss
Aulacomnium turgidum

Aytoniaceae

Asterella gracilis
Asterella lindenbergiana
Asterella saccata
Asterella tenella
Mannia fragrans

Mannia pilosa
Mannia sibirica
Mannia triandra
Reboulia hemisphaerica

Azollaceae

Azolla caroliniana — eastern mosquito-fern

Azolla mexicana — Mexican mosquito-fern

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