Fig. 1

Cladogram of 442 plant families documented in the Switchboard based on matching GBOTB tips for representative taxa. The circular heatmap shows the number of species native to Africa (1), tropical Asia (2), temperate Asia (3), southern America (4), northern America (5), Australasia (6), Pacific (7) and Europe (8) based on the WCVP. The bar graph shows the number of contributing databases to the Switchboard with information for each family.