Link to English Wikipedia entry: Tree Fern
Link to German Wikipedia: Becherfarne
Link to French Wikipedia: Alsophila
Link to EOL.org: Alsophila incana
Link to iNaturalist.org: Alsophila incana
Links to my pictures: Tree Fern
Binomial Links for Alsophila incana on www.guenther-eichhorn.com
Dr. Günther Eichhorn Travel Website
Soaring website