| Attributes | Categories |
| Origin | • taxa that evolved in the region, or reached it from another area where they are native without human interference (native) • taxa which owe their presence in the region to contemporary human activity (non-native) |
| Natural regeneration potential | • taxa that occur only temporarily in the area, and are not able to persist for a long time without human assistance • form sustainable populations without human interference, but do not necessarily spread |
| Habitat type | • do not establish in natural (undisturbed) ecosystems, spreading preferable over disturbed areas • form sustainable populations without human interference and spread over natural (undisturbed) ecosystems |
| Dominance | • do not inhibit native species regeneration and growth • change the composition or structure of the native plant community, inhibiting or suppressing the regeneration of native species |