The ten major tree species in Brussels (1977)
| Number | % of total | Healthy % | Decaying % | Dead % | |
|---|---|---|---|---|---|
| Platanus acerifolia (Ait) W. | 9,953 | 12.2 | 96.2 | 1.8 | 2.0 |
| Prunus serrulate Ldl | 9,912 | 12.1 | 93.2 | 4.0 | 2.8 |
| Robinia pseudoacacia L. | 7,441 | 9.1 | 95.1 | 2.4 | 2.5 |
| Acer platanoides L. | 5,641 | 7.0 | 92.4 | 3.6 | 3.0 |
| Tilia platyphylla Scop. | 5,500 | 6.7 | 93.9 | 4.4 | 1.7 |
| Aesculus hippocastanum L. | 4,652 | 5.7 | 96.0 | 2.6 | 1.9 |
| Prunus cerasifera Ehrh. | 4,363 | 5.3 | 97.1 | 1.8 | 1.1 |
| Acer pseudoplatanus L. | 3,952 | 4.8 | 94.5 | 4.5 | 1.0 |
| Populus nigra L. | 2,903 | 3.6 | 96.7 | 2.1 | 1.2 |
| Crataegus oxycantha L. | 2,730 | 3.3 | 97.6 | 1.0 | 1.4 |