Choose one of the categories above for a list of plant-related websites. Selected websites are all non-commercial, without advertisements, and free-access sites. The links provided have all been checked as of March 1, 2018; however, websites are occasionally moved or deleted without notice by the authors or sponsoring agency. If you do encounter a link that no longer works or a website that has changed location, please report the problematic link to the NOPD so that we can update the link.

Pteridophytes

A Classification for Extant Ferns

This PDF file of a classic 2006 Taxon paper (Smith, A.R., K.M. Pryer, E. Schuettpelz, P. Korall, H. Schneider, and P.G. Wolf. 2006. A classification for extant ferns. Taxon 55(3): 705-731) provides a common-sense revision of fern classification at the family level. It divides the paraphyletic Dryopteridaceae into much more logical families, such as placing the dimorphic genera Matteuccia and Onoclea in the family Onocleaceae. Appendix 2 lists synonymy for the new accepted family names, which are printed in bold.

British Grasses, Sedges, Rushes, and Ferns

Part of the excellent British Wildflowers website by John Somerville.

Connecticut Ferns

A very useful collection of fern images from the Connecticut Botanical Society.

Ferns and Fern Allies of Minnesota

Another excellent collection of images and descriptions of of ferns, horsetails, clubmosses, and spikemoss species from the Minnesota Wildflowers website.

FloralImages - Ferns of the UK and Ireland

Ferns and horsetails from John Crellin's excellent FloralImages website.

Hardy Fern Library

An excellent website on ferns, developed by Tom Stewart, which provides good descriptions, illustrations, and images of North American ferns. A number of browsing options are available at the top of the website and a very useful illustrated glossary is also available.

Michigan Ferns

A very useful website with excellent digital images of ferns in Michigan. A companion website to Charles Peirce's Michigan Wildflowers. Most of the images are habit shots, which will assist in field identification. All of the species featured in this website are also found in northern Ontario.

Moonwort (Botrychium) Systematics

Included in this website are links to PDF descriptions of Botrychium species in the subgenus Botrychium. Be sure to read the information on moonwort morphology in the Moonwort Systematics link before trying to identify any of these moonworts.

Non-Flowering Vascular Plant Family Access Page

Another part of the Dr. Gerald D. Carr's excellent website on vascular plants from the University of Hawaii; includes excellent images of Pteridophytes.

Pteridophytes of Commanster, Belgium

A website with excellent habitat and closeup images of Belgian ferns and fern allies, part of the Ecology of Commanster website by Jim Lindsey. Plants are organized according to scientific name, but common names are provided in English, French, Dutch, and German.

Non-seed-bearing plants of the Southeastern U.S.

A pteridophyte website from Bioimages, hosted by Vanderbilt University, Nashville, TN.

Pteridophytes of Wisconsin: Ferns & Fern Allies

An extremely well-constructed website, by Gary Fewless, of the Cofrin Center for Biodiversity, University of Wisconsin-Green Bay, which includes an interactive key to Ferns and Fern Allies of Wisconsin and an excellent interactive glossary to terms relating to ferns and fern allies.