Home›Ferns and Fern Allies›NatureServe RankBrowse ByNatureServe RankFactsNatureServe RankSourcesComments (0)Reader Challenges (0)FactsComparisonReproductive ModeWell-attestedSpores 1NatureServe RankG4 Apparently SecureNatureServe Rank8 entriesG5 SecureNatureServe Rank66 entriesGNR UnrankedNatureServe Rank7 entriesSources1. Wikipedia: Ferntier 2WikipediaFern, lead sectionQuote, Fern, lead sectionFerns (Polypodiopsida or Polypodiophyta) are a group of vascular plants that reproduce via spores and have neither seeds nor flowers.View the SourceComments (0)No comments yet. Be the first to share a thought.Sign in to join the discussion.Reader Challenges (0)No disputes yet. Spotted an error or a better source? Open the first one.Sign in to dispute this or suggest a correction.