| Boebera pinnata (Cav.) Rydb., 1915 |
| Boebera pubescens (Lag.) Spreng., 1826 |
| Boebera roseata Rydb., 1915 |
| Boebera subintegerrima (Lag.) Spreng., 1826 |
| Boebera tagetiflora (Lag.) Spreng., 1826 |
| Boeberastrum (A. Gray) Rydb., 1915 |
| Boeberastrum anthemidifolium (Benth.) Rydb., 1915 |
| Boeberastrum concinnum (A. Gray) Rydb., 1915 |
| Boeberastrum littoralis (Brandegee) Rydb., 1915 |
| Boeberoides (DC.) Strother, 1986 |
| Boeberoides grandiflora (DC.) Strother, 1986 |
| Bolanosa A. Gray, 1852 |
| Bolanosa coulteri A. Gray, 1852 |
| Boltoniinae G.L. Nesom, 2000 |
| Bombycilaena (DC.) Smoljan., 1955 |
| Bombycilaena californica (Fisch. & C.A. Mey.) Smoljan., 1955 |
| Borrichia Adans., 1763 |
| Borrichia arborescens (L.) DC., 1836 |
| Borrichia argentea (Kunth) DC., 1836 |
| Borrichia frutescens (L.) DC., 1836 |