Anthyllis vulneraria
Kidney Vetch
Antirrhinum majus
Snapdragon
Aphanes arvensis
Parsley-piert
Aquilegia vulgaris
Columbine
Arabidopsis petraea
Northern Rock-cress
Arabidopsis thaliana
Thale Cress
Arabis scabra
Bristol Rock-cress
Arctium lappa
Greater Burdock
Arctium nemorosum
Wood Burdock
Aristolochia clematitis
Birthwort
Armeria maritima
Thrift
Arrhenatherum elatius
False Oat-grass
Asplenium ceterach
Rustyback
Asplenium trichomanes
Maidenhair Spleenwort (pachyrachis)
Asplenium viride
Green Spleenwort
Astragalus glycyphyllos
Wild Liquorice
Atriplex portulacoides
Sea-purslane
Atropa belladonna
Deadly Nightshade
Auricularia auricula-judae
Jelly Ear
Autographa gamma
Silver Y Moth
Avena sativa
Oat
Avenula pubescens
Downy Oat-grass
Baldellia ranunculoides
Lesser Water-plantain
Ballota nigra
Black Horehound