United Kingdom

American Twinflower

Linnaea borealis

American Wainscot

Mythimna unipuncta

American Walnut

Juglans nigra

American White Moth

Hyphantria cunea

American Willowherb

Epilobium ciliatum

Anchor worm

Lernaea cyprinacea

Andean Water Milfoil

Myriophyllum quitense

Andromeda Lacebug

Stephanitis takeyai

An Eyebright

Euphrasia stricta

Angel's-tears

Narcissus triandrus

Angel'S Trumpet

Datura innoxia

Angel's-trumpets

Datura ferox

Angel's-wings

Opuntia microdasys

Angled Burr Cucumber

Sicyos angulatus

Angled Hydromedusa

Gonionemus vertens

Angled pea

Lathyrus angulatus

Angoumois grain moth

Sitotroga cerealella

Animated oat

Avena sterilis

Anise

Myrrhis odorata

Aniseed-Weed

Foeniculum vulgare

Ankara Crocus

Crocus ancyrensis

Annual-Aster

Callistephus chinensis

Annual bastardcabbage

Rapistrum rugosum

Annual canarygrass

Phalaris canariensis

Annual candytuft

Iberis amara

Annual Clary

Salvia viridis

Annual Cosmos

Cosmos bipinnatus

Annual Dropseed

Sporobolus neglectus

Annual False Pimpernel

Lindernia dubia

Annual Honesty

Lunaria annua

Annual Mercury

Mercurialis annua

Annual rabbitsfoot grass

Polypogon monspeliensis

Annual Ragweed

Ambrosia artemisiifolia

Annual Toadflax

Linaria incarnata

Annual trampweed

Facelis retusa

Annual Valerian

Centranthus calcitrapae

Annual Wall-rocket

Diplotaxis muralis

Annual yellow sweetclover

Melilotus indicus

anoda-weed

Anoda cristata

Ant

Tetramorium insolens

Ant

Technomyrmex albipes

Ant

Strumigenys rogeri

Ant

Technomyrmex vitiensis

Ant

Tetramorium simillimum

Ant

Tetramorium caldarium

Antarctic Barley

Hordeum pubiflorum

Antirrhinum Rust

Puccinia antirrhini

Aphanomyces astaci

Aphid

Tinocallis saltans

Aphid

Cinara confinis

Aphid Trap

Proboscidea louisianica

Apple

Malus domestica

Apple Mint

Mentha suaveolens

Apple Of Peru

Nicandra physalodes

Arborvitae Leafminer

Argyresthia thuiella

Arctic cancellate chiton

Leptochiton cancellatus

Arctic dwarf birch

Betula nana

Argentina Vervain

Verbena bonariensis

Argentine ant

Linepithema humile

Argentine Barley

Hordeum euclaston