Arachnothryx leucophylla
Bush Pentas
Araucaria araucana
Monkey-puzzle
Araucaria columnaris
New Caledonia Pine
Araucaria heterophylla
Norfolk Island Pine
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
Aristolochia clematitis
Birthwort
Armeria maritima
Thrift
Armoracia rusticana
Horse-radish
Artemisia vulgaris
Mugwort
Arthropodium candidum
Forest#Floor Lily
Artocarpus odoratissimus
Merang
Arum italicum
Italian Lords-and-Ladies
Arum maculatum
Lords-and-Ladies
Aruncus dioicus
Buck's-beard
Arundina graminifolia
Bamboo Orchid
Asarina procumbens
Trailing Snapdragon
Asparagus officinalis
Garden Asparagus
Asparagus verticillatus
Climbing Asparagus
Asperula cynanchica
Squinancywort
Asphodelus albus
White Asphodel
Asphodelus fistulosus
Hollow-stemmed Asphodel
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
Baldellia ranunculoides
Lesser Water-plantain
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
Bauhinia monandra
Pink Bauhinia
Beaumontia grandiflora
Easter Lily Vine
Begonia heracleifolia
Star Begonia
Begonia maculata
Polka Dot Begonia
Begonia sp.
Bellis perennis
Daisy
Berberis vulgaris
Barberry
Berberis x stenophylla
Hedge Barberry
Bergenia crassifolia
Elephant-ears
Bergera koenigii
Curry Tree
Berula erecta
Lesser Water-parsnip
Beta vulgaris
Sea Beet
Betonica officinalis
Betony
Betula pendula
Silver Birch
Betula pubescens
Downy Birch