Fig. 1: The heat-loving milkweed is increasingly spreading in the lowlands of Austria. It can form dense stands and then...University of Vienna
Fig. 2: The orange hawkweed is planted as a garden plant, and then sometimes escapes cultivation in large stands....University of Vienna
Hemispheric view: the Americas Flyways AtlasConvention on the Conservation of Migratory Species of Wild Animals (CMS)
