Acer campestre
Field Maple
Acer platanoides
Norway Maple
Acer pseudoplatanus
Sycamore
Achillea ptarmica
Sneezewort
Adoxa moschatellina
Moschatel
Aegopodium podagraria
Ground-elder
Aesculus hippocastanum
Horse-chestnut
Aglaia odorata
Chinese Perfume Plant
Agrimonia eupatoria
Agrimony
Agrimonia procera
Fragrant Agrimony
Agrostemma githago
Corncockle
Alisma lanceolatum
Narrow-leaved Water-plantain
Alisma plantago-aquatica
Water-plantain
Alliaria petiolata
Garlic Mustard
Allium cepa
Onion
Alnus glutinosa
Alder
Andromeda polifolia
Bog-rosemary
Anemone nemorosa
Wood Anemone
Anemone ranunculoides
Yellow Anemone
Angelica sylvestris
Wild Angelica
Antennaria dioica
Mountain Everlasting
Anthoxanthum odoratum
Sweet Vernal-grass
Anthriscus caucalis
Bur Chervil
Aphanamixis polystachya
Pithraj Tree
Arabidopsis petraea
Northern Rock-cress
Arabidopsis thaliana
Thale Cress
Arabis caucasica
Garden Arabis
Arabis hirsuta
Hairy Rock-cress
Arbutus menziesii
Pacific Madrone
Arbutus unedo
Strawberry-tree
Ardisia crenata
Christmas Berry
Arenaria serpyllifolia
Thyme-leaved Sandwort
Armoracia rusticana
Horse-radish
Arum maculatum
Lords-and-Ladies
Astragalus glycyphyllos
Wild Liquorice
Atriplex littoralis
Grass-leaved Orache
Atropa belladonna
Deadly Nightshade
Avicennia marina
Grey Mangrove
Baldellia ranunculoides
Lesser Water-plantain
Barbarea verna
American Winter-cress
Barbarea vulgaris
Winter-cress
Barringtonia racemosa
Powder-puff Tree
Bartramia stricta
Berberis vulgaris
Barberry
Beta vulgaris
Sea Beet
Betula pubescens
Iberian Birch
Blysmus compressus
Flat-sedge
Brachypodium sylvaticum
False-brome
Brassica juncea
Chinese Mustard
Brassica rapa
Turnip
Breynia vitis-idaea
Officinal Breynia
Cakile maritima
Sea Rocket
Callitriche stagnalis
Common Water-starwort
Caltha palustris
Marsh-marigold
Campanula latifolia
Giant Bellflower
Campanula patula
Spreading Bellflower
Capsella bursa-pastoris
Shepherd's-purse
Capsicum frutescens
Guinea Pepper
Cardamine flexuosa
Wavy Bitter-cress
Cardamine hirsuta
Hairy Bitter-cress
Cardamine impatiens
Narrow-leaved Bitter-cress
Cardamine pratensis
Cuckooflower
Cardiocrinum giganteum
Carex arenaria
Sand Sedge
Carex caryophyllea
Spring-sedge
Carex depauperata
Starved Wood-sedge
Carex dioica
Dioecious Sedge
Carex divulsa
Grey Sedge
Carex echinata
Star Sedge
Carex lepidocarpa
Long-stalked Yellow-sedge