Canada

Ajuga

Ajuga reptans

Endangered

Alder

Alnus glutinosa

Alexanders

Angelica atropurpurea

Allegheny Serviceberry

Amelanchier arborea

Common Silver Hairgrass

Aira caryophyllea

Endangered

All Species in Canada

Amethyst Aster

Symphyotrichum amethystinum

Amphibious Watercress

Rorippa amphibia

Amur maple

Acer japonicum

Amur Peppervine

Ampelopsis glandulosa

Amur Silver Grass

Miscanthus sacchariflorus

Analogue sedge

Carex simulata

Andean Water Milfoil

Myriophyllum quitense

Anderson's alkali grass

Puccinellia andersonii

Andrews' Bog Orchid

Platanthera andrewsii

An Eyebright

Euphrasia stricta

an Eyebright

Euphrasia ostenfeldii

An Eyebright

Euphrasia tetraquetra

Angell'S Violet

Viola subsinuata

Extinct

Angel'S Trumpet

Datura innoxia

Angled Burr Cucumber

Sicyos angulatus

Angoumois grain moth

Sitotroga cerealella

Animated oat

Avena sterilis

Anise

Myrrhis odorata

Aniseed-Weed

Foeniculum vulgare

Anise Hyssop

Agastache foeniculum

Anise-Root

Osmorhiza longistylis

Anise Swallowtail

Papilio zelicaon

Annual bastardcabbage

Rapistrum rugosum

Annual Bluegrass

Poa annua

Annual canarygrass

Phalaris canariensis

Annual candytuft

Iberis amara

Annual Coreopsis

Coreopsis tinctoria

Annual Cosmos

Cosmos bipinnatus

Annual Dropseed

Sporobolus neglectus

Annual False Pimpernel

Lindernia dubia

Annual Honesty

Lunaria annua

Annual Knawel

Scleranthus annuus

Annual Marsh Fleabane

Pluchea odorata

Annual Mercury

Mercurialis annua

Annual rabbitsfoot grass

Polypogon monspeliensis

Annual Ragweed

Ambrosia artemisiifolia

Annual Sea-Blite

Suaeda maritima

Annual Wall-rocket

Diplotaxis muralis

Annual wheatgrass

Eremopyrum triticeum

Annual yellow sweetclover

Melilotus indicus

anoda-weed

Anoda cristata

Ant Beetle

Thanasimus formicarius

Anticosti Island aster

Symphyotrichum anticostense

Antirrhinum Beetle

Brachypterolus pulicarius

Antlike flower beetle

Omonadus formicarius

Aphid Trap

Proboscidea louisianica

Appalachian Barren Strawberry

Geum fragarioides

Appalachian Polypody

Polypodium appalachianum

Appalachian Quillwort

Isoetes engelmannii

Appalachian Tea

Ilex glabra

Apple

Malus domestica

Apple Capsid

Lygocoris rugicollis

Apple Mint

Mentha suaveolens

Apple Of Peru

Nicandra physalodes

Aquatic Pygmyweed

Crassula aquatica

Vulnerable

arching bushweed

Flueggea suffruticosa

Arctic Alkali Grass

Puccinellia arctica

arctic-alpine fleabane

Erigeron humilis

Arctic Bentgrass

Agrostis mertensii

Arctic bladderpod

Physaria arctica