Gypsum soils are amongst the most widespread unique soil types in the world. They possess a suite of chemical and physical properties that make them highly restrictive to plant life, posing serious limitations to agriculture and livestock . However, gypsum soils harbour rich endemic floras that have evolved independently on five continents, constituting an international conservation priority. Despite their relevance in extent and diversity and the millions of people they sustain, gypsum soils have received far less attention.
