I am an amateur botanist who spends all his spare time on fieldwork. Herbarium material is collected for new or rare finds and published about if necessary. I am a plant validator at waarneming.nl and observation.org.
Special interest in Juncaceae, Cyperaceae, Poacaea, Rosaceae, ferns, urban plants in Western Europe. Trendwatcher for alien plants.

Google my name for multiple articles and publications.