Canada's Plant Hardiness Site
(Last updated Thu Jan 24 16:21:44 EST 2013)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
Abies amabilis Pacific silver fir
Abies balsamea balsam fir
Abies concolor white fir
Abies fraseri Fraser fir
Abies grandis lowland white fir
Abies lasiocarpa Rocky Mountain fir
Abies magnifica California red fir
Abies procera noble fir
Acer barbatum hammock maple
Acer circinatum western mountain maple
Acer glabrum Rocky Mountain maple
Acer grandidentatum canyon maple (var. sinuosum)
Acer macrophyllum Oregon maple
Acer negundo boxelder
Acer palmatum cutleaf Japanese maple (var. dissectum)
Acer pensylvanicum striped maple
Acer platanoides Schwedler maple
Acer rubrum red maple
Acer saccharinum silver maple
Acer saccharum sugar maple
Acer saccharum subsp. leucoderme chalk maple
Acer saccharum subsp. nigrum black maple
Acer saccharum subsp. saccharum
Acer spicatum mountain maple
Achillea millefolium common yarrow
Achillea ptarmica sneezeweed yarrow
Aconitum columbianum subsp. columbianum northern monkshood
Aconitum reclinatum
Acorus americanus American sweetflag
Acorus calamus European sweetflag
Actaea elata
Actaea pachypoda doll's-eyes
Actaea rubifolia
Actaea rubra red baneberry
Adenocaulon bicolor pathfinder
Adiantum capillus-veneris southern maidenhair
Adiantum pedatum northern maidenhair
Adlumia fungosa Allegheny vine
Adoxa moschatellina muskroot
Aegopodium podagraria goat's-foot
Aeschynomene virginica
Aesculus californica California horsechestnut
Aesculus flava yellow buckeye
Aesculus glabra fetid buckeye
Aesculus hippocastanum common horsechestnut
Aesculus parviflora dwarf horsechestnut
Aesculus pavia scarlet buckeye
Aesculus sylvatica painted buckeye
Agalinis acuta sandplain agalinis
Agalinis aphylla
Agalinis auriculata
Agalinis filicaulis
Agalinis gattingeri roundstem false foxglove
Agalinis paupercula smallflower gerardia
Agalinis purpurea purple false foxglove
Agalinis skinneriana Skinner's agalinis
Agalinis tenuifolia slenderleaf false foxglove
Agastache foeniculum blue giant hyssop
Agastache nepetoides
Agastache scrophulariifolia
Ageratina altissima white snakeroot
Ageratina altissima var. altissima white snakeroot
Ageratina luciae-brauniae Braun's thoroughwort
Agoseris aurantiaca var. aurantiaca orange agoseris
Agrimonia gryposepala tall hairy agrimony
Agrimonia incisa
Agrimonia parviflora swamp agrimony
Agrimonia pubescens soft agrimony
Agrimonia rostellata
Agrimonia striata woodland agrimony
Agrostis gigantea redtop
Agrostis mertensii northern bentgrass
Agrostis perennans upland bentgrass
Agrostis scabra tickle grass
Agrostis stolonifera creeping bentgrass
Ailanthus altissima tree-of-heaven
Ajuga reptans common bugle
Albizia julibrissin mimosa tree
Alcea rosea garden hollyhock
Alchemilla mollis giant lady’s mantle
Aletris farinosa white colicroot
Alisma gramineum grassleaf waterplantain
Alisma plantago-aquatica European waterplantain
Alisma triviale northern waterplantain
Alliaria petiolata hedge garlic
Allium campanulatum
Allium canadense Canada garlic
Allium cernuum nodding onion
Allium madidum swamp onion
Allium schoenoprasum wild chives
Allium schoenoprasum var. sibiricum wild chives
Allium stellatum autumn onion
Allium tricoccum wild leek
Allotropa virgata candystick
Alnus glutinosa European black alder
Alnus incana speckled alder (subsp. rugosa)
Alnus incana subsp. rugosa speckled alder
Alnus incana subsp. tenuifolia western mountain alder
Alnus maritima seaside alder
Alnus rhombifolia white alder
Alnus rubra Oregon alder
Alnus serrulata smooth alder
Alnus viridis green alder
Alnus viridis subsp. crispa mountain alder
Alnus viridis subsp. sinuata Sitka alder
Alopecurus aequalis shortawn foxtail
Alopecurus geniculatus water foxtail
Alopecurus magellanicus alpine foxtail
Alopecurus pratensis field foxtail
Amaranthus albus tumbleweed amaranth
Amaranthus hybridus smooth amaranth
Amaranthus pumilus seabeach amaranth
Amaranthus retroflexus redroot amaranth
Amaranthus tuberculatus roughfruit amaranth
Ambrosia artemisiifolia common ragweed
Ambrosia linearis Colorado bursage
Ambrosia psilostachya perennial ragweed
Ambrosia trifida giant ragweed
Amelanchier alnifolia saskatoonberry
Amelanchier arborea downy shadbush
Amelanchier bartramiana mountain shadbush
Amelanchier canadensis eastern shadbush
Amelanchier humilis low shadbush
Amelanchier interior Wiegand's shadbush
Amelanchier laevis smooth shadbush
Amelanchier sanguinea redtwig shadbush
Amelanchier spicata thicket shadbush
Amianthium muscitoxicum
Ammophila breviligulata American beachgrass
Amorpha canescens leadplant
Amorpha fruticosa indigobush amorpha
Amorpha nana dwarf false indigo
Amorpha ouachitensis
Amorpha schwerinii
Amphicarpaea bracteata hog peanut
Amsinckia lunaris
Amsonia hubrichtii Arkansas amsonia
Amsonia ludoviciana Louisiana bluestar
Amsonia tabernaemontana eastern bluestar
Anagallis arvensis scarlet pimpernel
Anagallis minima
Anaphalis margaritacea pearly everlasting
Ancistrocactus brevihamatus shortspine fishhook cactus
Andromeda polifolia bog rosemary
Andromeda polifolia var. latifolia glaucous-leaf bog rosemary
Andropogon arctatus pinewoods bluestem
Andropogon gerardii big bluestem
Andropogon virginicus broomsedge bluestem
Androsace septentrionalis northern fairy candelabra
Anemone acutiloba sharplobe liverleaf
Anemone americana American liverleaf
Anemone canadensis roundleaf thimbleweed
Anemone cylindrica longhead anemone
Anemone hepatica European liverleaf
Anemone multifida cliff anemone
Anemone multifida var. multifida cutleaf anemone
Anemone parviflora northern anemone
Anemone quinquefolia nightcaps
Anemone quinquefolia var. quinquefolia nightcaps
Anemone virginiana tall thimbleweed
Anethum graveolens dill
Angelica atropurpurea wild masterwort
Angelica lucida sea-watch
Angelica venenosa hairy angelica
Antennaria neglecta field pussytoes
Antennaria parlinii Parlin's pussytoes
Antennaria parvifolia small-leaf pussytoes
Antennaria pulcherrima showy pussytoes
Antennaria rosea rosy pussytoes
Antennaria solitaria singlehead pussytoes
Anthemis cotula stinking chamomile
Anthoxanthum nitens subsp. nitens sweetgrass
Anthriscus sylvestris cow parsley
Anticlea elegans death camas
Apios americana groundnut
Apios priceana
Aplectrum hyemale puttyroot
Apocynum androsaemifolium creeping dogbane
Apocynum cannabinum hemp dogbane
Aquilegia brevistyla shortstyle columbine
Aquilegia canadensis wild red columbine
Aquilegia flabellata fan columbine
Aquilegia vulgaris culverwort
Arabidopsis lyrata subsp. lyrata lyreleaf rockcress
Arabidopsis thaliana mouseear cress
Arabis hirsuta hairy rockcress
Arabis patens
Arabis pycnocarpa western hairy rockcress
Arabis pycnocarpa var. adpressipilis creamflower rockcress
Aralia hispida bristly spikenard
Aralia nudicaulis small spikenard
Aralia racemosa spikenard
Aralia spinosa devil's walkingstick
Arbutus menziesii Pacific arbutus
Arceuthobium pusillum eastern dwarf mistletoe
Arctium lappa great burdock
Arctium minus common burdock
Arctomecon californica
Arctomecon merriamii
Arctostaphylos andersonii Santa Cruz manzanita
Arctostaphylos columbiana bristly bearberry
Arctostaphylos uva-ursi common bearberry
Arctous alpina alpine bearberry
Arctous rubra red bearberry
Arenaria serpyllifolia thymeleaf sandwort
Arethusa bulbosa swamp pink
Argentina anserina silverweed
Arisaema dracontium green dragon
Arisaema triphyllum Jack-in-the-pulpit
Arisaema triphyllum subsp. stewardsonii Stewardson Brown's Jack-in-the-pulpit
Arisaema triphyllum subsp. triphyllum Jack-in-the-pulpit
Aristida longespica slimspike threeawn grass
Aristida longespica var. geniculata Kearney's threeawn grass
Aristida purpurascens arrowfeather threeawn grass
Aristida tuberculosa seaside threeawn grass
Aristolochia macrophylla Dutchman's pipe
Aristolochia serpentaria Virginia snakeroot
Armoracia rusticana red cole
Arnica angustifolia narrowleaf arnica
Arnica chamissonis Chamisso's arnica
Arnica cordifolia heartleaf arnica
Arnica fulgens hillside arnica
Arnica lonchophylla northern arnica
Arnoglossum plantagineum tuberous Indian-plantain
Arnoglossum reniforme great Indian plantain
Aronia melanocarpa black chokeberry
Aronia Xprunifolia purple chokeberry
Arrhenatherum elatius tall oatgrass
Artemisia absinthium common wormwood
Artemisia annua annual wormwood
Artemisia biennis biennial wormwood
Artemisia campestris field wormwood
Artemisia campestris subsp. caudata tall wormwood
Artemisia cana silver wormwood
Artemisia dracunculus dragon wormwood
Artemisia frigida prairie sagebrush
Artemisia ludoviciana silver wormwood
Artemisia tridentata big sagebrush
Artemisia vulgaris common wormwood
Aruncus dioicus goatsbeard
Asarum canadense wild ginger
Asarum caudatum western wild ginger
Asclepias amplexicaulis clasping milkweed
Asclepias exaltata poke milkweed
Asclepias hirtella prairie milkweed
Asclepias incarnata swamp milkweed
Asclepias lanuginosa sidecluster milkweed
Asclepias meadii Mead's milkweed
Asclepias ovalifolia ovalleaf milkweed
Asclepias pedicellata savannah milkweed
Asclepias purpurascens purple milkweed
Asclepias quadrifolia whorled milkweed
Asclepias rubra red milkweed
Asclepias sullivantii prairie milkweed
Asclepias syriaca common milkweed
Asclepias tuberosa pleurisy root
Asclepias variegata redring milkweed
Asclepias verticillata whorled milkweed
Asclepias viridiflora green milkweed
Asclepias viridis green antlopehorn
Asimina triloba pawpaw
Asparagus officinalis garden asparagus
Asplenium bradleyi Bradley's spleenwort
Asplenium pinnatifidum
Asplenium platyneuron ebony spleenwort
Asplenium rhizophyllum walking fern
Asplenium ruta-muraria wallrue spleenwort
Asplenium scolopendrium var. americanum American hart's-tongue fern
Asplenium septentrionale forked spleenwort
Asplenium trichomanes maidenhair spleenwort
Asplenium viride green spleenwort
Aster alpinus alpine aster
Astragalus alpinus alpine milkvetch
Astragalus alpinus var. brunetianus
Astragalus americanus American milkvetch
Astragalus atratus var. inseptus
Astragalus barrii
Astragalus canadensis Carolina milkvetch
Astragalus eucosmus elegant milkvetch
Astragalus flexuosus
Astragalus laxmannii var. robustior prairie milkvetch
Astragalus lotiflorus
Astragalus michauxii
Astragalus missouriensis
Astragalus musiniensis
Astragalus neglectus Cooper's milkvetch
Astragalus paysonii
Astragalus solitarius
Astragalus tener var. tener
Astragalus tennesseensis
Astragalus umbraticus
Athyrium filix-femina common lady fern
Atriplex cordulata heartleaf orach
Atriplex glabriuscula glabrous saltbush
Atriplex joaquiniana San Joaquin orach
Atriplex littoralis narrowleaf orache
Atriplex parishii var. depressa depressed orach
Atriplex patula common orache
Aureolaria patula
Aureolaria pedicularia fernleaf yellow false foxglove
Avena sativa cultivated oats
Azolla caroliniana eastern mosquito fern