Master of Science, Gdansk University, 1985. Doctor of Philosophy, Gdansk University, 1990. Doctor Habilitation, Poznan University, Poland, 1996.
Assistant Gdansk University, 1985-1990, lecturer, 1990-1997, professor, since 1998, head laboratory plant taxonomy, since 1998, head department plant taxonomy and nature conservation, since 1999, vice dean biology, geography and oceanology faculty, since 2002. Visiting professor Museum National Natural History, Paris, 1992, Paris, 95, Paris, 96, Paris, 98.
Member of Polish Academy of Sciences (member botanical committee), International Association Plant Taxonomy, Polish Botanical Society.
Married Alina Jusis, April 30, 1983. Children: Jakub, Aleksandra.