The graduation thesis addresses the 31 most invasive alien species in Slovenia. In Slovenia, invasive alien plants have become a major problem, since they are uncontrollably spreading and reproducing. In order to successfully limit their growth and spread, we need certain data on the reproduction and dissemination of these species.In my graduation thesis I gathered information about selected plant species from the relevant literature, and determined which data are most and which is the least complete. I was looking for information about the life form, distribution in Slovenia, and how the plants came to our territory. For each species I also gathered data on vegetative and sexual reproduction. I entered the data into three tables and analyzed them.
The results show, that the data on the life form, the distribution in Slovenia and how the plants came to our territory are the most complete. There are also sufficient data about how the species is vegetatively propagated: regarding the mechanism of vegetative reproduction and the propagation vector. There is enough data about the sexual reproduction, especially on distribution of propagules, their vectors and about the estimated seed number per plant. The most incomplete are data on spreading distance of propagules, germination rates and the survival of seedlings in nature.