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 adding missing items with reliable sources.

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