'Phytogeography' is the branch of
biogeography that is concerned with the geographic distribution of
plant species, or more generally, plants. Phytogeography is concerned with all aspects of plant distribution, from the controls on the distribution of individual species ranges to the factors that govern the composition of entire communities and
floras.
The basic data elements of phytogeography are occurrence records (presence or absence of a species) with operational geographic units such as political units or geographical coordinates. These data are often used to construct phytogeographic provinces (
floristic provinces) and elements.