Canada

Aconite

Aconitum napellus

Critically Endangered

Allegheny Serviceberry

Amelanchier arborea

Ajuga

Ajuga reptans

Endangered

Alder

Alnus glutinosa

Alexanders

Angelica atropurpurea

Agrimony

Agrimonia eupatoria

2-spot ladybird

Adalia bipunctata

All Species in Canada

Black Gooseberry

Ribes lacustre

Black-grass

Alopecurus myosuroides

Black Gum

Nyssa sylvatica

Black Haw

Viburnum lentago

blackheaded fireworm, Holly Tortrix

Rhopobota naevana

Black hellebore

Helleborus niger

Black Hemlock

Tsuga canadensis

Black Henbane

Hyoscyamus niger

Endangered

Black Horehound

Ballota nigra

Black Huckleberry

Gaylussacia baccata

Black Knapweed

Centaurea nigra

Black larder beetle

Dermestes ater

Black Locust

Robinia pseudoacacia

Black Locust Leafminer

Macrosaccus robiniella

Black Medic

Medicago lupulina

Black Mustard

Brassica nigra

Black Nightshade

Solanum nigrum

Black Oak

Quercus velutina

black pea

Lathyrus niger

Argent & Sable

Rheumaptera hastata

Argid Sawfly

Arge ochropus

Arkansas Grape

Vitis aestivalis

Arolla Pine

Pinus cembra

Arrow Arum

Peltandra virginica

Arrow bamboo

Pseudosasa japonica

Arrow-Grass

Triglochin maritima

Arsène's mountain-ash

Sorbaronia arsenii

Artemisia

Artemisia vulgaris

athenarian burrowing anemone

Nematostella vectensis

Atlantic Bay Scallop

Argopecten irradians

Atlantic Cordgrass

Sporobolus alterniflorus

Atlantic Mudwort

Limosella australis

Atlantic Ninebark

Physocarpus opulifolius

Aubretia

Aubrieta deltoidea

August Flower

Scorzoneroides autumnalis

August-Lily

Hosta plantaginea

Aunt Lucy

Ellisia nyctelea

auricled twayblade

Neottia auriculata

Arum-Leaf Arrowhead

Sagittaria cuneata

Asa Gray'S Sedge

Carex grayi

Ascending Grapefern

Botrychium ascendens

ascending saxifrage

Saxifraga adscendens

ash

Fraxinus excelsior

Ashy Cinquefoil

Potentilla inclinata

ashy sunflower

Helianthus mollis

Ashy Willow

Salix cinerea

Asian Ambrosia Beetle

Xyleborinus attenuatus

Asian Bittersweet

Celastrus orbiculatus

Asian forget-me-not

Myosotis asiatica

Asian Longhorned Beetle

Anoplophora glabripennis

Asian oak fern

Gymnocarpium continentale

Asian wavy bittercress

Cardamine occulta

Asiatic Dayflower

Commelina communis

Asiatic tearthumb

Persicaria perfoliata

Asian drill snail

Ocinebrellus inornatus

Asian Fly-Honeysuckle

Lonicera morrowii

Asian kelp

Undaria pinnatifida

Asian Lady Beetle

Harmonia axyridis

Asian Spring Bulb

Scilla forbesii

Asian Tiger Mosquito

Aedes albopictus