United States

Bamboo longhorn beetle

Chlorophorus annularis

Early Blight

Alternaria solani

Baltic Grayling

Oeneis jutta

Balsam Fir

Abies concolor

Balkan Spurge

Euphorbia oblongata

Bahia lovegrass

Eragrostis bahiensis

Baeospora myriadophylla

Badhamia utricularis

Easter lily

Lilium longiflorum

Badhamia foliicola

Badhamia affinis

Bacterial Speck

Pseudomonas syringae

Microsporean parasite

Ichthyosporidium hertwigi

Bacterial kidney disease

Renibacterium salmoninarum

Early water grass

Echinochloa oryzoides

Golden Ear

Naematelia aurantia

Earthy Powdercap

Cystoderma amianthinum

Bacterial Crown Gall

Agrobacterium radiobacter

Baby blue eyes

Nemophila menziesii

Azulejo

Cornutia pyramidata

Tapioca Slime Mold

Brefeldia maxima

Corn borer microsporidium

Nosema pyrausta

Chocolate Tube Slime

Stemonitis splendens

Eastern American Jack-O'-Lantern

Omphalotus illudens

Azores buttercup

Ranunculus cortusifolius

Azalea leafminer

Caloptilia azaleella

Azalea lace bug

Stephanitis pyrioides

Awkward Clusterfly

Pollenia rudis

Armenian marshmallow

Althaea armeniaca

Ashen Knight

Tricholoma virgatum

Avian malaria

Plasmodium relictum

Autumn zephyrlily

Zephyranthes candida

Autumn fern

Dryopteris erythrosora

Australian windmill grass

Chloris ventricosa

Australian teatree

Leptospermum laevigatum

Australian tallowwood

Eucalyptus microcorys

Australian stork's bill

Erodium cygnorum

Australian spotted jellyfish

Phyllorhiza punctata

Australian spider beetle

Ptinus tectus

Australian saltbush

Atriplex semibaccata

Australian redcedar

Toona ciliata

Australian lovegrass

Eragrostis leptostachya

Australian Bur-grass

Tragus australianus

Australian brake

Pteris tremula

Argentine ant

Linepithema humile

Arcyria versicolor

Arcyria stipata

Arcyria insignis

Arctic Rocktripe Lichen

Umbilicaria arctica

Arctic Mushroom Scales Lichen

Lichenomphalia hudsoniana

Arctic Kidney Lichen

Nephroma arcticum

Arctic Grayling

Oeneis bore

Arctic Forestfly

Nemoura arctica

Arctic Fingernailclam

Sphaerium nitidum

Arctic-alpine Pea Clam

Euglesa conventus

Horsefly's eye

Dopatrium junceum

eccentric grass snail

Vallonia excentrica

Arched Woodwax

Hygrophorus camarophyllus

Arched Earthstar

Geastrum fornicatum

Arborvitae Leafminer

Argyresthia thuiella