Background
He was the son of Johann Friedrich and Wilhelmine Friederike Berg.
He was the son of Johann Friedrich and Wilhelmine Friederike Berg.
He studied in Berlin and married in 1848, Caroline Albertine Florentine Witthaus, with whom he had six children.
The official transcript of his name, in botany, is O. Berg. He joined the faculty of Botany and Pharmacology at the University of Berlin in 1849. In 1862 he was appointed associate professor
Helped to make an independent discipline of pharmacology.
He also specialized in South American flora.