Blechnum (Blechnaceae)

Fern phylogeny:
Fern families and family relationships

Osmunda regalis - Royal fern (Osmundaceae)

A chart of fern families

Fern classification: Early-branching fern families

Suitable for
  • Professional, student and amateur botanists.
  • School, colleges and universities.
  • Wildlife conservation.
  • Gardeners and others involved in horticulture.
  • Ecological studies.
  • All those interested in understanding the natural world.
  • An attractive chart displaying all families of living ferns.
  • Familiar fern names included.
  • Uses the latest molecular (genetic) phylogenies.
  • Fine-structure of relationships between families depicted.
  • Available for on-line viewing or as a poster.
View fern family chart

View and navigate the chart: Choose a suitable magnification for your display.

Chart guide, contacts and links

How to understand the chart, useful sources and contacts.

Availability as poster

Request a printed wallchart.

Chart of flowering plant families

Switch to Angiosperm chart.

The chart is designed by David Rydeheard, who owns the copyright. It should not be distributed in any form other than that available on this website and must always include the copyright notice. It is available for personal use or for teaching and research purposes only. Please contact the author (at for permission to use in commerce or for personal gain.