Asplenium dentatum
- Description and photograph of this fern growing in Cuba.
- http://www.cybertruffle.org.uk/vinales/eng/asplenium_dentatum.htm

Asplenium ruta-muraria
- Two photographs of Wall-rue and the identifying features of the plant.
- http://www.plant-identification.co.uk/skye/aspleniaceae/asplenium-ruta-muraria.htm

Asplenium adiantum-nigrum
- Photograph of Black Spleenwort and the identifying features of the plant.
- http://www.plant-identification.co.uk/skye/aspleniaceae/asplenium-adiantum-nigrum.htm

Asplenium viride
- Two photographs of Green Spleenwort and a description.
- http://www.plant-identification.co.uk/skye/aspleniaceae/asplenium-viride.htm

Asplenium trichomanes
- Two photographs of Maidenhair Spleenwort and some identifying features of the plant.
- http://www.plant-identification.co.uk/skye/aspleniaceae/asplenium-trichomanes.htm

Asplenium marinum
- Several photographs of Sea Spleenwort and a description.
- http://www.plant-identification.co.uk/skye/aspleniaceae/asplenium-marinum.htm

Asplenium scolopendrium
- Two photographs of Hartstongue Fern and a description of the plant.
- http://www.plant-identification.co.uk/skye/aspleniaceae/asplenium-scolopendrium.htm

The Mysterious American Hart's-Tongue Fern in Tennessee
- Article about Asplenium scolopendrium var. americanum discusses occurrences, growth requirements, and efforts to protect and propagate this rare plant.
- http://www.state.tn.us/environment/tn_consv/archive/AmHTfern.pdf

Asplenium
- Synonymized list of the world's species.
- http://homepages.caverock.net.nz/~bj/fern/asplenium.htm

Asplenium australasicum
- Bird's Nest Fern, photo and text from Chambers Wildlife Rainforest Lodge, Far North Queensland, Australia.
- http://www.rainforest-australia.com/Birds%20Nest%20Fern.htm

Asplenium dentatum L.
- Distribution and other information on what used to be called A. trichomanes-dentatum from Ferns of Barbados.
- http://scitec.uwichill.edu.bb/bcs/staff/lec/Fern_species/asplenium_dentatum.htm

Asplenium montanum Willd.
- Image and habitat and hybridisation data.
- http://www.frognet.net/~jaknouse/ferns.htg/asplmont.html

Asplenium bulbiferum
- Description and images of Mother Spleenwort from Canberra, Australia.
- http://www.home.aone.net.au/byzantium/ferns/descriptions/asplenium/aspbulb.html

Asplenium ceterach
- Image from the environmental resources of the Pays de Caux (Normandy) and of the Seine estuary.
- http://www.univ-lehavre.fr/cybernat/pages/asplcete.htm

Asplenium platyneuron
- Frond image.
- http://pluto.njcc.com/~ret/Roosevelt/ebonspln.jpg

Asplenium sp.
- Microscopic image showing section of sorus with sporangia.
- http://www.dipbot.unict.it/sistematica/Asple_sp.html

Pteridophyte Photographs by K & H Rasbach
- Nine of 21 photographs of Asplenium taxa, all expandable thumb-nails.
- http://www.nhm.ac.uk/hosted_sites/bps/rasbach/rasbach.htm

Asplenium nidus
- Collection record, Ecology and Evolutionary Biology Conservatory and Gardens, University of Connecticut.
- http://florawww.eeb.uconn.edu/acc_num/198500858.html