The Herbarium Senckenbergianum in Frankfurt/Main (FR) comprises more than 1 Million collections in total and ranks among the largest herbaria in Germany. The phanerogams amount to ca. 3/4 of this number. On average we receive an annual accession of some 10.000 specimens from exchange, donations, and own collections. Loans are generally made only to research institutions acknowledged in the Index Herbariorum.
Founded in 1817 with the Senckenberg Natural History Society, it harbours a number of important historic collections (e.g. J.R. & J.G.A. Forster, J.B.G.W. Fresenius, G. Gärtner, W.P.E.S. Rüppell).
Geographically, the collection is focussed on Hesse and Central Europe. There are however particular regions for which the collection is rich. These include Ethiopia, Mexico, Cuba, Nicaragua, Japan, Europe, the Mediterranean, the Mid-Atlantic Islands and the West African Savanna regions (esp. Burkina Faso, Bénin, Nigeria). The West African herbarium is presently being expanded and was digitized as part of the BIOTA W11 Project.
Searches are possible through SeSam, the Senckenberg collection management system. Further collections are constantly added.
Systematically, the collection is especially rich in Poaceae.