| But once the oaks die, grasses and exotics, like Scotch broom, will seed in aggressively, provoking a hotter flame. |
| There is a wide range of trees and shrubs, exotics and natives, and even in winter there is some colour. |
| A mixture of natives and exotics has been planted closely with a view to thinning later. |
| The black willow is native to Wisconsin and the weeping and crack willows are exotics brought into Wisconsin from somewhere else. |
| In Hawaii today, as in Australia, many exotics are aggressive and pushing out the indigenous plants. |
| And of course, all those wonderful exotics planted in Joubert Park are still there, thriving since they were planted over 100 years ago. |
