Bellis perennis
Daisy
Berberis vulgaris
Barberry
Berberis x stenophylla
Hedge Barberry
Bergenia crassifolia
Elephant-ears
Berula erecta
Lesser Water-parsnip
Beta vulgaris
Sea Beet
Betonica officinalis
Betony
Betula pendula
Silver Birch
Betula pubescens
Downy Birch
Bidens cernua
Nodding Bur-marigold
Bidens pilosa
Spanish-needles
Bidens tripartita
Trifid Bur-marigold
Bignonia magnifica
Glowvine
Bismarckia nobilis
Bismarck Palm
Bistorta officinalis
Common Bistort
Bistorta vivipara
Alpine Bistort
Blackstonia perfoliata
Yellow-wort
Blechnum orientale
Blechnum spicant
Hard-fern
Blitum bonus-henricus
Good-King-Henry
Blumea balsamifera
Sambong
Blysmus compressus
Flat-sedge
Bolboschoenus maritimus
Sea Club-rush
Borago officinalis
Borage