Die Natürlichen Pflanzenfamilien is a botanical work in German language, first published in many volumes between 1887–1915 and written by Adolf Engler (1844–1930) and Karl Anton Prantl (1849–1893).

It contained a complete revision of plant families down to generic level and often even further.

[5] His modified Eichler schema first appeared in 1886 in his Guide to Breslau Botanic Garden[6] (of which he was the director).

The complete 23 volume work was published in four parts (Teil(e)), together with supplements and indices.

Each part was further divided in Abteilung(en) (sections).The volumes are arranged as follows: The major groupings (Abteilung, Unterabteilung), with selected lower rankings are shown here with [Volume number] and page number.