» Not to be confused with Cilium. For the mucilaginous health product, see Psyllium seed husks. Psyllium or Ispaghula is the common name used for several members of the plant genus Plantago whose seeds are used commercially for the production of mucilage. History The genus Plantago contains over 200 species. P. ovata and P. psyllium are produced commercially in several European countries, the former Soviet Union, Pakistan, and India. Plantago seed, known commercially as black, French, or Spanis… (More on Psyllium)