Started in 1997 by J. Chrtek and Z. Skála, these international meetings regularly attract scientists and amateur Hieraciologists from all over the world. Typically, the meetings consist of approx. 30 participants from 8-10 countries. A mixture of scientific presentations, discussion of checklists and herbarium specimens and excursions offer excellent opportunities for (i) exchange of ideas and concepts, (ii) expert support for determination problems in this critical group and (iii) establishing of contacts for new collaborations and joint projects.
| 2011 | Spånhult, Sweden | (organized by T. Tyler) |
| 2010 | Průhonice, Czech Republic | (organized by J. Fehrer, J. Chrtek, K. Krak & P. Caklová) |
| 2007 | Villard d’Arène – Col du Lautaret, Hautes Alpes, France | (organized by P. Mráz, S. Aubert & R. Douzet) |
| 2006 | Trenta (Julian Alps), Slovenia | (organized by B. Vreš & V. Babij) |
| 2004 | Dedinky - Slovenský raj, Slovakia | (organized by P. Mráz) |
| 2003 | Křivoklát, Czech Republic | (organized by J. Chrtek, Z. Skála & T. Peckert) |
| 2002 | Hirschegg - Kleinwalsertal, Austria | (organized by W. Gutermann & F. Schuhwerk) |
| 2001 | Liptovský Hrádok, Slovakia | (organized by J. Chrtek, P. Mráz & P. Turis) |
| 2000 | Niederspree - Oberlausitz, Germany | (organized by S. Bräutigam & J. Fehrer) |
| 1999 | Ružomberok, Slovakia | (organized by P. Mráz & J. Chrtek) |
| 1998 | Mikulov, Czech Republic | (organized by J. Chrtek, Z. Skála & J. Danihelka) |
| 1997 | Horní Albeřice - Krkonoše, Czech Republic | (organized by J. Chrtek & Z. Skála) |
International Hieracium Workshops