Wikipedia defines the concept of a tree by listing 143 tree families. Each family is composed of a series of species, for example the Quercus family (oak) will contain the species Quercus robur (English oak).
These drawings show for each existing Wikidata language the available data in Wikidata for the 143 tree families and their relative species. The stem is always there. Each branch represents a tree family. Each subbranch represents a species of that family.
You can order these Wikidata language trees by their size or by alphabetical order. By clicking on the image, you can enjoy its details.