Arabidopsis arenosa
A. arenosa is a wonderful model for understanding the mechanisms and effects of repeated genome duplication and hybridization events, and for studying ecological adaptation. It is found throughout Europe in a variety of disturbed area types (mountain slopes, forest margins, roadsides, railroad tracks, river banks and grassy and sandy areas), and from sea level up to 2000 m, with genetic specializations to a wide variety of edaphic conditions.