.
| Genus | |
|---|---|
| 
                                                
                                                
                                                 | 
                                            Babiana Ker Gawl. | 
| 
                                                
                                                
                                                 | 
                                            Baccaurea Lour. | 
| Bactris Jacq. ex Scop. | |
| Badula Juss. | |
| 
                                                
                                                
                                                 | 
                                            Baeometra Salisb. ex Endl. | 
| Baeriopsis J.T.Howell | |
| 
                                                
                                                
                                                 | 
                                            Balanophora J.R.Forst. & G.Forst. | 
| Baliospermum Blume | |
| 
                                                
                                                
                                                 | 
                                            Ballota L. | 
| Baloghia Endl. | |
| 
                                                
                                                
                                                 | 
                                            Banksia L.f. | 
| 
                                                
                                                
                                                 | 
                                            Baptisia Vent. | 
| 
                                                
                                                
                                                 | 
                                            Barbacenia Vand. | 
| Barbaceniopsis L.B.Sm. | |
| 
                                                
                                                
                                                 | 
                                            Barbarea Scop. | 
| 
                                                
                                                
                                                 | 
                                            Barclaya Wall. | 
| Barfussia Manzan. & W.Till | |
| Barkleyanthus H.Rob. & Brettell | |
| 
                                                
                                                
                                                 | 
                                            Barleria L. | 
| 
                                                
                                                
                                                 | 
                                            Barnardia Lindl. | 
| Barneoudia Gay | |
| 
                                                
                                                
                                                 | 
                                            Barringtonia J.R.Forst. & G.Forst. | 
| 
                                                
                                                
                                                 | 
                                            Bartonia Muhl. ex Willd. | 
| 
                                                
                                                
                                                 | 
                                            Bassecoia B.L.Burtt | 
| 
                                                
                                                
                                                 | 
                                            Bauhinia B.Heyne ex Wight & Arn. | 
| Bdallophytum Eichler | |
| Beaucarnea Lem. | |
| Beauprea Brongn. & Gris | |
| Beaupreopsis Virot | |
| Bedfordia DC. | |
| 
                                                
                                                
                                                 | 
                                            Beesia Balf.f. & W.W.Sm. | 
| Behnia Didr. | |
| 
                                                
                                                
                                                 | 
                                            Bejaria Mutis | 
| 
                                                
                                                
                                                 | 
                                            Bellendena R.Br. | 
| 
                                                
                                                
                                                 | 
                                            Bellevalia Lapeyr. | 
| Belosynapsis Hassk. | |
| 
                                                
                                                
                                                 | 
                                            Benthamiella Speg. | 
| 
                                                
                                                
                                                 | 
                                            Berberidopsis Hook.f. | 
| 
                                                
                                                
                                                 | 
                                            Berberis L. | 
| Bergeranthus Schwantes | |
| Bergerocactus Britton & Rose | |
| 
                                                
                                                
                                                 | 
                                            Berlinia Sol. ex Hook.f. & Benth. | 
| 
                                                
                                                
                                                 | 
                                            Berteroa DC. | 
| 
                                                
                                                
                                                 | 
                                            Berzelia Brongn. | 
| 
                                                
                                                
                                                 | 
                                            Beschorneria Kunth | 
| 
                                                
                                                
                                                 | 
                                            Besleria Plum. ex L. | 
| Bessera Schult.f. | |
| Bethencourtia Choisy | |
| 
                                                
                                                
                                                 | 
                                            Betula L. | 
| 
                                                
                                                
                                                 | 
                                            Biarum Schott | 
| 
                                                
                                                
                                                 | 
                                            Bidens L. | 
| 
                                                
                                                
                                                 | 
                                            Bignonia L. | 
| 
                                                
                                                
                                                 | 
                                            Billardiera Sm. | 
| 
                                                
                                                
                                                 | 
                                            Billbergia Thunb. | 
| Biophytum DC. | |
| 
                                                
                                                
                                                 | 
                                            Bistorta (L.) Scop. | 
| 
                                                
                                                
                                                 | 
                                            Bituminaria Heist. ex Fabr. | 
| Blachia Baill. | |
| 
                                                
                                                
                                                 | 
                                            Blackstonia Huds. | 
| 
                                                
                                                
                                                 | 
                                            Blakea P.Browne | 
| 
                                                
                                                
                                                 | 
                                            Blancoa Lindl. | 
| 
                                                
                                                
                                                 | 
                                            Blandfordia Sm. | 
| Bleasdalea F.Muell. ex Domin | |
| 
                                                
                                                
                                                 | 
                                            Blechnum L. | 
| Blennosperma Less. | |
| 
                                                
                                                
                                                 | 
                                            Blepharipappus Hook. | 
| 
                                                
                                                
                                                 | 
                                            Blephilia (L.) Raf. | 
| Bloomeria Kellogg | |
| 
                                                
                                                
                                                 | 
                                            Blossfeldia Werderm. | 
| 
                                                
                                                
                                                 | 
                                            Bobartia L. | 
| Boechera Á.Löve & D.Löve | |
| 
                                                
                                                
                                                 | 
                                            Boenninghausenia Rchb. | 
| 
                                                
                                                
                                                 | 
                                            Boesenbergia Kuntze | 
| Bolandra Gray | |
| 
                                                
                                                
                                                 | 
                                            Bomarea Mirb. | 
| 
                                                
                                                
                                                 | 
                                            Bonamia Thouars | 
| Bonellia | |
| 
                                                
                                                
                                                 | 
                                            Boophone Herb. | 
| 
                                                
                                                
                                                 | 
                                            Boopis Juss. | 
| Borodinia Busch | |
| 
                                                
                                                
                                                 | 
                                            Boronia Sm. | 
| 
                                                
                                                
                                                 | 
                                            Boswellia Roxb. ex Colebr. | 
| 
                                                
                                                
                                                 | 
                                            Botrychium Sw. | 
| 
                                                
                                                
                                                 | 
                                            Boucerosia Wight & Arn. | 
| 
                                                
                                                
                                                 | 
                                            Bourreria P.Browne | 
| Bouteloua Bouteloua | |
| 
                                                
                                                
                                                 | 
                                            Bouvardia Salisb. | 
| 
                                                
                                                
                                                 | 
                                            Bowiea Harv. ex Hook.f. | 
| 
                                                
                                                
                                                 | 
                                            Bowkeria Harv. | 
| Boykinia Nutt. | |
| Brabejum L. | |
| Brachycereus Britton & Rose | |
| 
                                                
                                                
                                                 | 
                                            Brachyclados D.Don | 
| Brachyglottis J.R.Forst. & G.Forst. | |
| 
                                                
                                                
                                                 | 
                                            Brachyotum (DC.) Triana | 
| 
                                                
                                                
                                                 | 
                                            Brachytome Hook.f. | 
| 
                                                
                                                
                                                 | 
                                            Brandisia Hook.f. & Thomson | 
| 
                                                
                                                
                                                 | 
                                            Brasenia Schreb. | 
| 
                                                
                                                
                                                 | 
                                            Brasilicereus Backeb. | 
| Brasiliopuntia (K. Schum.) A. Berger | |
| 
                                                
                                                
                                                 | 
                                            Brassica L. | 
| Braunsia Schwantes | |
| 
                                                
                                                
                                                 | 
                                            Brefeldia Rostaf. | 
| 
                                                
                                                
                                                 | 
                                            Brexia Noronha ex Thouars | 
| Brianhuntleya Chess. et al. | |
| 
                                                
                                                
                                                 | 
                                            Brighamia A.Gray | 
| 
                                                
                                                
                                                 | 
                                            Brimeura Salisb. | 
| 
                                                
                                                
                                                 | 
                                            Brocchinia Schult. & Schult.f. in J.J.Roemer & J.A.Schultes | 
| Brodiaea Sm. | |
| 
                                                
                                                
                                                 | 
                                            Bromelia L. | 
| 
                                                
                                                
                                                 | 
                                            Bromus L. | 
| 
                                                
                                                
                                                 | 
                                            Broussonetia Ortega | 
| 
                                                
                                                
                                                 | 
                                            Browallia L. | 
| 
                                                
                                                
                                                 | 
                                            Brownea Jacq. | 
| 
                                                
                                                
                                                 | 
                                            Browneopsis Huber | 
| 
                                                
                                                
                                                 | 
                                            Browningia Britton & Rose | 
| 
                                                
                                                
                                                 | 
                                            Brugmansia Pers. | 
| 
                                                
                                                
                                                 | 
                                            Brunfelsia L. | 
| Brunia L. | |
| 
                                                
                                                
                                                 | 
                                            Brunnera Steven | 
| 
                                                
                                                
                                                 | 
                                            Brunonia R.Br. | 
| 
                                                
                                                
                                                 | 
                                            Brunsvigia Heist. | 
| Bryocarpum Hook. f. & Thomson | |
| 
                                                
                                                
                                                 | 
                                            Bucephalandra Schott | 
| 
                                                
                                                
                                                 | 
                                            Buchnera L. | 
| Buckinghamia F.Muell. | |
| Bucklandiella Roiv. | |
| 
                                                
                                                
                                                 | 
                                            Buddleja L. | 
| 
                                                
                                                
                                                 | 
                                            Bufonia Sauvage | 
| 
                                                
                                                
                                                 | 
                                            Buglossoides Moench | 
| 
                                                
                                                
                                                 | 
                                            Bukiniczia Lincz. | 
| 
                                                
                                                
                                                 | 
                                            Buphthalmum Mill. | 
| 
                                                
                                                
                                                 | 
                                            Bupleurum L. | 
| 
                                                
                                                
                                                 | 
                                            Burmannia L. |