Count Friedrich Carl Eugen Vsemir von Berchtold, baron von Ungarschitz (; 25 October 1781 â 3 April 1876), was a German-speaking Bohemian physician and botanist of Austrian descent.
Berchtold was born in StrÃ¡à ¾ nad Neà ¾Ã¡rkou () (now Jindà Âichà ¯v Hradec District), in the Austrian Empire. He graduated from medical school in 1804, after which he practiced medicine and devoted much of his time to botany and natural history. He eventually abandoned regular medical practice and travelled throughout Europe, the Middle East and Brazil. He co-authored several research papers with brother botanists Carl Borivoj Presl and Jan Svatopluk Presl, including an important taxonomic work, O Pà Âirozenosti Rostlin.
An avid worker for Czech national revival, Berchtold was involved in the establishment of the Prague National Museum. He died in 1876 in Buchlau (now Buchlovice), Moravia (now part of the Czech Republic).
The genus Berchtoldia C.Presl (syn. Chaetium Nees) was named in his honor.