Link to English Wikipedia entry: Water Mattress
Link to German Wikipedia: Wegeriche
Link to French Wikipedia: Plantago
Link to EOL.org: Plantago rigida
Link to iNaturalist.org: Plantago rigida
Links to my pictures: Water Mattress
Binomial Links for Plantago rigida on www.guenther-eichhorn.com
Dr. Günther Eichhorn Travel Website
Soaring website