United Kingdom

Artemisia

Artemisia vulgaris

Atlantic Giant Pumpkin

Cucurbita maxima

Atlantic Ninebark

Physocarpus opulifolius

Atlantic rangia

Rangia cuneata

Atlantic Stream Crayfish

Austropotamobius pallipes

Atlantic Surf Clam

Spisula solidissima

Atlas Cedar

Cedrus atlantica

Atlas Poppy

Papaver atlanticum

Aubretia

Aubrieta deltoidea

Auricula

Primula auricula

Ascochyta syringae

Ashy Cinquefoil

Potentilla inclinata

Asian Ambrosia Beetle

Xyleborinus attenuatus

Asian Bittersweet

Celastrus orbiculatus

Asian China-mark

Elophila difflualis

Asian Hornet

Vespa velutina

Asian Longhorned Beetle

Anoplophora glabripennis

Asian Skunk-cabbage

Lysichiton camtschatcensis

Asiatic Dayflower

Commelina communis

Asiatic red scale

Aonidiella taxus

Asparagus fern

Asparagus densiflorus

Astrantia

Astrantia major

Asian brush crab

Hemigrapsus takanoi

Asian Bush Mosquito

Aedes japonicus

Asian chestnut gall wasp

Dryocosmus kuriphilus

Asian Clam

Corbicula fluminalis

Asian date mussel

Arcuatula senhousia

Asian drill snail

Ocinebrellus inornatus

Asian kelp

Undaria pinnatifida

Asian Lady Beetle

Harmonia axyridis

Asian netvein hollyfern

Cyrtomium fortunei

Asian pigeonwings

Clitoria ternatea

Asian Pony'S-Foot

Dichondra micrantha

Asian Shore Crab

Hemigrapsus sanguineus

Asian Tiger Mosquito

Aedes albopictus

Asparagus

Asparagus officinalis

Asparagus Beetle

Crioceris asparagi

aspen daisy

Erigeron speciosus

Aster-Like Boltonia

Boltonia asteroides

Belgian Endive

Cichorium intybus

Bell-Bean

Vicia faba

Belvedere

Bassia scoparia

Bengal Gram

Cicer arietinum

Bermuda buttercup

Oxalis pes-caprae

Bermudagrass

Cynodon dactylon

Bermuda Thistle

Argemone mexicana

Bethlehem Lungwort

Pulmonaria saccharata

bigpod sesbania

Sesbania herbacea

Big quakinggrass

Briza maxima

Big-Seed False Flax

Camelina sativa

Billard's Bridewort

Spiraea billardii

Billion-Dollar Grass

Echinochloa frumentacea

Birdbill Dayflower

Commelina diffusa

Birdeye speedwell

Veronica persica

Bird-In-A-Bush

Corydalis solida

Bird'S-Eye Gilia

Gilia tricolor

birthwort

Aristolochia clematitis

Bhutan Pine

Pinus wallichiana

Bicolored trailing ant

Monomorium floricola

Bieberstein's Crocus

Crocus speciosus