Abies procera
Noble Fir
Acanthus mollis
Bear's-breech
Acer campestre
Field Maple
Acer platanoides
Norway Maple
Acer pseudoplatanus
Sycamore
Achillea millefolium
Yarrow
Achillea ptarmica
Sneezewort
Aconitum napellus
Monk's-hood
Acroloxus lacustris
Lake Limpet
Adoxa moschatellina
Moschatel
Aegopodium podagraria
Ground-elder
Aesculus hippocastanum
Horse-chestnut
Agrostis capillaris
Common Bent
Aira caryophyllea
Silver Hair-grass
Ajuga reptans
Bugle
Alchemilla filicaulis
Hairy Lady's-mantle
Alchemilla glabra
Smooth Lady's-mantle
Alchemilla mollis
Garden Lady's-mantle
Alchemilla xanthochlora
Intermediate Lady's-mantle
Alisma lanceolatum
Narrow-leaved Water-plantain
Alisma plantago-aquatica
Water-plantain
Alliaria petiolata
Garlic Mustard
Allium ampeloprasum
Wild Leek
Allium siculum
Honey Garlic
Allium triquetrum
Three-cornered Garlic
Allium ursinum
Ramsons
Alnus glutinosa
Alder
Alopecurus geniculatus
Marsh Foxtail
Alopecurus pratensis
Meadow Foxtail
Amanita muscaria
Fly Agaric
Amanita rubescens
Blusher
Anacamptis pyramidalis
Pyramidal Orchid
Anaphalis margaritacea
Pearly Everlasting
Andromeda polifolia
Bog-rosemary
Anemone nemorosa
Wood Anemone
Angelica sylvestris
Wild Angelica
Antennaria dioica
Mountain Everlasting
Anthoxanthum odoratum
Sweet Vernal-grass
Aphanes arvensis
Parsley-piert
Aphanes australis
Slender Parsley-piert
Arabidopsis thaliana
Thale Cress
Arabis hirsuta
Hairy Rock-cress
Araucaria araucana
Monkey-puzzle
Arctia caja
Garden Tiger Caterpillar
Arctium minus
Lesser Burdock
Arctium minus sens. str.
Lesser Burdock
Arenaria serpyllifolia
Argyroneta aquatica
Water Spider
Arrhenatherum elatius
False Oat-grass
Arum maculatum
Lords-and-Ladies
Asplenium adiantum-nigrum
Black Spleenwort
Asplenium ceterach
Rustyback
Asplenium ruta-muraria
Wall-rue
Asplenium trichomanes
Maidenhair Spleenwort
Asplenium viride
Green Spleenwort
Astrantia major
Astrantia
Auricularia auricula-judae
Jelly Ear
Baldellia ranunculoides
Lesser Water-plantain
Ballota nigra
Black Horehound
Berula erecta
Lesser Water-parsnip
Betonica officinalis
Betony
Betula pendula
Silver Birch
Betula pubescens
Downy Birch
Bidens cernua
Nodding Bur-marigold
Bidens tripartita
Trifid Bur-marigold
Bistorta officinalis
Common Bistort
Blechnum spicant
Hard-fern
Blysmus compressus
Flat-sedge
Borago pygmaea
Slender Borage
Brachypodium sylvaticum
False-brome