In war, it is important to profile your enemies. You should know the qualities and the weaknesses of the other party, to adequately predict their next move.
As I said on the results page, invasiveness is not a skill known to every plant. Plants need the combination of the right characteristics, with a little bit of additional luck. Here, I profile some of the most likely candidates for invasion: the ruderals (check those badasses out on the picture!).
These species are designed for the guerrilla-war: they travel fast, have fantastic germination capacities even in the most horrible circumstances and reproduce like rabbits in the shortest possible timespan.
They like human presence, because they are perfectly adapted to survived in disturbed plots where other plants fail to thrive. Between cracks in roads, on the railroad, vertically on walls, simply everywhere where they can find a tiny hole. This is the exact explanation for why they are so widespread in cities and all kind of places influenced by humans. They follow us everywhere were we expand our concrete world.
The above gives a traditional view of an ideal invader: quickly reproducing plants, always first to germinate on disturbed plots. However, as I will show later, we will need another profile if we look at invasion in mountains. There, the ruderals turn out to be not the main danger. We will have to re-profile our enemies there, or we will totally miss the point.