B
- Churchill Babington
- Curt Backeberg
- James Eustace Bagnall
- Liberty Hyde Bailey
- Ibn al-Baitar
- Giovanni Battista Balbis
- John Hutton Balfour
- Joseph Banks
- César Barbosa
- Benjamin Smith Barton
- John Bartram
- William Bartram
- Johann Bauhin
- Gaspard Bauhin
- Chauncey Beadle
- Rolla Kent Beattie
- Richard Henry Beddome
- Martinus Beijerinck
- David Bellamy
- George Bentham
- Robert Bentley
- Miles Joseph Berkeley
- Karl August von Bergen
- Edward W. Berry
- Clarence Bicknell
- Gustaf Johan Billberg
- Johannes Bisse
- Andrew Bloxam
- Carl Ludwig Blume
- Tyge W. Böcher
- Hieronymus Bock
- Herman Boerhaave
- Wenceslas Bojer
- Henry Nicholas Bolander
- Harry Bolus
- August Gustav Heinrich von Bongard
- Charles Bonnet
- Aimé Bonpland
- Antonina Georgievna Borissova
- Frederik Børgesen
- David Bowman
- Alexander Braun
- John Patrick Micklethwait Brenan
- William Henry Brewer
- Charles-François Brisseau de Mirbel
- Elizabeth Gertrude Britton
- Nathaniel Lord Britton
- Adolphe Theodore Brongniart
- Nicholas Edward Brown
- Robert Brown
- Patrick Browne
- Louis-Ovide Brunet
- Francis Buchanan-Hamilton
- Alexander von Bunge
- Elsa Beata Bunge
- Luther Burbank
- Frederick William Burbidge
- William John Burchell
- Alan Burges
- David Burke
- Joseph Burke II
- Johannes Burman
- Nicolaas Laurens Burman
Read more about this topic: List Of Botanists