People Johan Oskar Hagström peoplepill id: johan-oskar-hagstroemJOH 15 views today 15 views this weekBotanist (1860-1922)Johan Oskar HagströmBiographyBibliography (2)ListsAlso ViewedThe worksBooksSources:Openlibrary1916Critical researches on the potamogetonsAuthors:Johan Oskar HagströmFrom our partnersSponsoredJohan Oskar Hagström