Andromeda polifolia
Bog-rosemary
Androsace villosa
Hairy Androsace
Anemone nemorosa
Wood Anemone
Anemone ranunculoides
Yellow Anemone
Anemone sylvestris
Snowdrop Anemone
Angelica archangelica
Garden Angelica
Angelica sylvestris
Wild Angelica
Antennaria dioica
Mountain Everlasting
Anthemis arvensis
Corn Chamomile
Anthemis cotula
Stinking Chamomile
Anthriscus caucalis
Bur Chervil
Anthriscus sylvestris
Cow Parsley
Anthyllis vulneraria
Kidney Vetch
Antigonon leptopus
Coral Vine
Antirrhinum majus
Snapdragon
Aphanamixis polystachya
Pithraj Tree
Aphanes arvensis
Parsley-piert
Aphanes arvensis agg.
Parsley-piert
Aphanes australis
Slender Parsley-piert
Aquilegia alpina
Alpine Columbine
Aquilegia pyrenaica
Pyrenean Columbine
Aquilegia vulgaris
Columbine
Arabidopsis petraea
Northern Rock-cress
Arabidopsis thaliana
Thale Cress
Arabis caucasica
Garden Arabis
Arabis hirsuta
Hairy Rock-cress
Arabis scabra
Bristol Rock-cress
Arachis hypogaea
Penut
Arachnothryx leucophylla
Bush Pentas
Arbutus menziesii
Pacific Madrone
Arbutus sp.
Arbutus unedo
Strawberry-tree
Arctium lappa
Greater Burdock
Arctium minus
Lesser Burdock
Arctium minus sens. str.
Lesser Burdock
Arctium nemorosum
Wood Burdock
Arctium tomentosum
Woolly Burdock
Ardisia crenata
Christmas Berry
Ardisia elliptica
Coralberry
Arenaria montana
Mountain Sandwort
Arenaria serpyllifolia
Thyme-leaved Sandwort
Argemone subfusiformis
Prickly Poppy
Armeria maritima
Thrift
Armoracia rusticana
Horse-radish
Artemisia vulgaris
Mugwort
Artocarpus odoratissimus
Merang
Aruncus dioicus
Buck's-beard
Asarina procumbens
Trailing Snapdragon
Asperula cynanchica
Squinancywort
Astragalus glycyphyllos
Wild Liquorice
Astrantia major
Astrantia
Asystasia gangetica
Chinese Violet
Atriplex glabriuscula
Babington's Orache
Atriplex halimus
Shrubby Orache
Atriplex laciniata
Frosted Orache
Atriplex littoralis
Grass-leaved Orache
Atriplex portulacoides
Sea-purslane
Atriplex prostrata
Spear-leaved Orache
Atropa belladonna
Deadly Nightshade
Aubrieta deltoidea
Aubretia
Avicennia marina
Grey Mangrove
Azadirachta indica
Neem
Ballota nigra
Black Horehound
Baltimora recta
Beautyhead
Banksia blechnifolia
Southern#Blechnum Banksia
Barbarea verna
American Winter-cress
Barbarea vulgaris
Winter-cress
Barleria cristata
Philippine-violet
Barringtonia racemosa
Powder-puff Tree
Basella alba
Malabar Spinach