| Bambusa vulgaris var. aureovariegata Beadle, 1914 |
| Bambusa vulgaris var. vittata Rivière & C. Rivière, 1878 |
| Bambuseae Kunth ex Dumort., 1829 |
| Bambusinae J. Presl, 1830 |
| Bambusoideae Luerss., 1893 |
| Batratherum Nees, 1835 |
| Bauchea E. Fourn., 1886 |
| Bauchea karwinskyi E. Fourn., 1886 |
| Bealia Scribn., 1890 |
| Bealia mexicana Scribn. ex Beal, 1896 |
| Bealia mexicana Scribn., 1890 |
| Bealia speciosa (Vasey) Beal, 1896 |
| Beckeria Bernh., 1800 |
| Beckeria (Bernh.) Asch., 1864 |
| Beckeropsis Fig. & De Not., 1853 |
| Bellardiochloa Chiov., 1929 |
| Bennetia Raf., 1830 |
| Bennetia juncea Raf. ex B.D. Jacks., 1893 |
| Berchtoldia J. Presl, 1830 |
| Berchtoldia bromoides J. Presl, 1830 |