Naturalists like to talk about "invasives" in derisive terms. Here's a snip from the wikipeida entry for the term:
They disrupt by dominating a region, wilderness areas, particular habitats, and/or wildland-urban interface land from loss of natural controls (i.e.: predators or herbivores). This includes non-native invasive plant species labeled as exotic pest plants and invasive exotics, in restoration parlance, growing in native plant communities.
But I wonder if this isn't an unfair take on the species we consider "invasive". I'm guessing the mothers and fathers of these so-called invasive plants think that their offspring are right at home!