Bulgaria

Argentine ant

Linepithema humile

Australian spider beetle

Ptinus tectus

Australian tubeworm

Ficopomatus enigmaticus

Autumn Millet

Panicum dichotomiflorum

Awl-Leaf Mudwort

Limosella aquatica

Awned Canary-grass

Phalaris paradoxa

Awnless Geranium

Geranium molle

Azadinium spinosum

Bacteriastrum hyalinum

Balkan Clouded Yellow

Colias caucasica

Balkan Fritillary

Boloria graeca

Balkan Green-veined White

Pieris balcana

Balkan Marbled White

Melanargia larissa

Balm

Melissa officinalis

balsam fir aphid

Cinara curvipes

Banana bud moth

Opogona sacchari

Barbary Matrimony Vine

Lycium barbarum

Barberry

Berberis vulgaris

Barnyard Grass

Echinochloa crus-galli

Bastard Cress

Thlaspi arvense

Bastard Cress

Lepidium campestre

Bastard Nodding Thistle

Carduus acanthoides

Bavius Blue

Pseudophilotes bavius

bay barnacle

Amphibalanus improvisus

Beanpodded Mustard

Chorispora tenella

Beardsley leafhopper

Balclutha saltuella

Beet

Beta vulgaris

Beetle

Carpophilus nepos

Beggar'S Button

Arctium minus

Black carpet beetle

Attagenus unicolor

Black Cherry

Prunus serotina

Blackdisk medick

Medicago orbicularis

Black Henbane

Hyoscyamus niger

Black Horehound

Ballota nigra

Black larder beetle

Dermestes ater

Black Locust

Robinia pseudoacacia

Black Medic

Medicago lupulina

Black Mulberry

Morus nigra

Black Mustard

Brassica nigra

Black Nightshade

Solanum nigrum

Artemisia

Artemisia vulgaris

Asiatic Dayflower

Commelina communis

Asian date mussel

Arcuatula senhousia

Asian Lady Beetle

Harmonia axyridis

Asian Tiger Mosquito

Aedes albopictus

Bermudagrass

Cynodon dactylon

Big-Seed False Flax

Camelina sativa

Big-Sting Nettle

Urtica dioica

Bine

Humulus lupulus

Birdeye speedwell

Veronica persica

birthwort

Aristolochia clematitis

Big-Leaved Periwinkle

Vinca major

Black Plantain

Plantago lanceolata

black rat

Rattus rattus

Black Ringlet

Erebia melas

black Sea jellyfish

Blackfordia virginica

Blackspot hornpoppy

Glaucium corniculatum

Bittercress

Cardamine hirsuta

Bitter Vetch

Vicia ervilia

Bladder Ketmia

Hibiscus trionum