Arabis scabra
Bristol Rock-cress
Arbutus unedo
Strawberry-tree
Arctium minus
Lesser Burdock
Arctium minus sens. str.
Lesser Burdock
Arenaria serpyllifolia
Thyme-leaved Sandwort
Armeria maritima
Thrift
Arrhenatherum elatius
False Oat-grass
Arum italicum
Italian Lords-and-Ladies
Arum maculatum
Lords-and-Ladies
Asperula cynanchica
Squinancywort
Asplenium adiantum-nigrum
Black Spleenwort
Asplenium ceterach
Rustyback
Asplenium marinum
Sea Spleenwort
Asplenium onopteris
Irish Spleenwort
Asplenium ruta-muraria
Wall-rue
Asplenium scolopendrium
Hart's-tongue
Asplenium trichomanes
Maidenhair Spleenwort
Asplenium viride
Green Spleenwort
Astragalus glycyphyllos
Wild Liquorice
Atriplex glabriuscula
Babington's Orache
Atriplex laciniata
Frosted Orache
Atriplex littoralis
Grass-leaved Orache
Atriplex portulacoides
Sea-purslane
Atriplex prostrata
Spear-leaved Orache