Jürgen is a senior botanist for the State Herbarium. He is responsible for the State Herbarium's publications, editor of the new fifth edition of Flora of South Australia and of the Journal of the Adelaide Botanic Gardens, one of five systematic journals published by Australian Herbaria. With Peter Lang, he is responsible for maintaining the SA Census of vascular plants.
His research focuses on the taxonomy and nomenclature of vascular plants, in particular, the plant family Rhamnaceae. He approaches these questions with both morphological and molecular methods in collaboration with colleagues from Australia and overseas.
Current projects include the preparation of the Flora of Australia treatment for Rhamnaceae. He works on several plant families for the Flora of South Australia and the Flora of Tasmania. He collaborates with colleagues in Australia and overseas on the morphology and taxonomy of the family.
He is a Visiting Research Fellow at the School of Biological Sciences, The University of Adelaide, and member of the Australian Centre for Evolutionary Biology & Biodiversity (ACEBB).
Jürgen is also interested in botanical nomenclature and the history of botany.
Species and populations