Abstract
Aim Understanding global patterns in plant invasions is critical for improving our understanding of plant biogeography and for informing conservation strategies. However, the bioregional structure of invasive angiosperms remains unresolved globally. Here, we delineate global bioregions of invasive angiosperms and assess how these regions differ in species traits and reported human uses. Location Global. Major Taxon Studied Invasive angiosperms belong to 48 orders and 184 families. Methods We compiled a global dataset of 3016 invasive angiosperm species from the Global Register of Introduced and Invasive Species (GRIIS). We generated species occurrence records and performed bioregionalisation using network clustering analyses in three independent runs, using the Infomap Bioregions software based on: (1) all available occurrences, (2) non‐native records and (3) invasive species. We then characterised the resulting bioregions using biological traits (life form, pollination, dispersal and propagation modes and photosynthetic pathway) obtained from global biodiversity repositories. Results We identify three consistent bioregion patterns from the non‐native occurrence dataset that directly reflect the distribution of invasive species outside their native ranges. These bioregions correspond to major latitudinal zones named here as Holarctic, Holotropical and Austral. The traits differ in terms of dominance from what was expected, which means that the bioregions may be selecting for the characteristics of the plants analysed there. The common dominant traits across all bioregions are C3 photosynthesis, insect pollination, seed propagation and medicinal use. Over‐ and underrepresented traits are recorded across all bioregions. The Holarctic bioregion generally exhibits strongly over‐represented characteristics; the Holotropical bioregion shows an over‐representation of human uses; and the Austral bioregion presents under‐represented characteristics. Main Conclusions Invasive angiosperms, despite having achieved their current global distributions primarily through anthropogenic activities that could have led to spatial homogenisation, exhibit structured bioregionalisation patterns. These findings suggest that invasion dynamics are controlled primarily by regional environmental constraints and species' traits, offering novel insights for conservation biogeography and the management of invasive species across biogeographic realms.