Belgium

arch-fronted swimming crab

Liocarcinus navigator

Arctic barrel-bubble

Retusa obtusa

Arctic Burreed

Sparganium natans

Arctic cancellate chiton

Leptochiton cancellatus

Arctic cowrie

Trivia arctica

Arctic dwarf birch

Betula nana

Arctic Rush

Juncus arcticus

Arcyria affinis

Arcyria ferruginea

Arcyria stipata

argali

Ovis ammon

Argentine ant

Linepithema humile

Argentine Barley

Hordeum euclaston

Australian Bur-grass

Tragus australianus

Australian Carrot

Daucus glochidiatus

Australian cup grass

Eriochloa australiensis

Australian fingergrass

Chloris truncata

Australian Goosefoot

Dysphania pumilio

Australian lovegrass

Eragrostis leptostachya

Australian Magpie

Gymnorhina tibicen

Australian millet

Panicum decompositum

Australian Pigweed

Dysphania glomulifera

Australian spider beetle

Ptinus tectus

Australian Spinach

Chenopodiastrum murale

Australian stork's bill

Erodium cygnorum

Australian tubeworm

Ficopomatus enigmaticus

Australian waterbuttons

Cotula australis

Australian windmill grass

Chloris ventricosa

Austrian flax

Linum austriacum

Austrian Yellow-cress

Rorippa austriaca

Autumnal Moth

Epirrita autumnata

Autumnal Rustic

Eugnorisma glareosa

Autumn Crocus

Colchicum autumnale

Autumn Crocus

Crocus nudiflorus

Autumn fern

Dryopteris erythrosora

autumn green carpet

Chloroclysta miata

Autumn Hawkweed

Hieracium sabaudum

Avens

Geum urbanum

Avian goosefoot

Chenopodium hircinum

Awl Aster

Symphyotrichum pilosum

Awl-Leaf Mudwort

Limosella aquatica

Awlwort

Subularia aquatica

Awned Canary-grass

Phalaris paradoxa

Awnless Geranium

Geranium molle

Azalea Gall

Exobasidium japonicum

Azalea lace bug

Stephanitis pyrioides

Azalea leafminer

Caloptilia azaleella

Babington's Orache

Atriplex glabriuscula

Baby blue eyes

Nemophila menziesii

Baby'S Breath

Galium sylvaticum

Badhamia affinis

Badhamia capsulifera

Badhamia foliicola

Badhamia utricularis

Bahia lovegrass

Eragrostis bahiensis

Bald brome

Bromus racemosus

Bald Inkcap

Parasola leiocephala

Balfour'S Jewelweed

Impatiens balfourii

Balkan Catchfly

Silene csereii

Balkan Clary

Salvia nemorosa