A fern is a member of a group of vascular plants (plants with xylem and phloem) that reproduce via spores and have neither seeds nor flowers. They differ from mosses by being vascular, i.e., having specialized tissues that conduct water and nutrients, in having branched stems and in having life cycles in which the sporophyte is the dominant phase. Like other vascular plants, ferns have complex leaves called megaphylls, that are more complex than the microphylls of clubmosses. Most ferns are leptosporangiate ferns, sometimes referred to as true ferns. They produce coiled fiddleheads that uncoil and expand into fronds. The group includes about 10,560 known extant species.


Tree Of Life

RNA Data

Chloroplast Data

RAD Data

Geographical Data

Phenotype Data

Data Statistics

  • RNA-seq samples: 60+
  • Homolog sequences: 150,000+
  • Chloroplast genomes: 60+
  • Geographical records: 2,400+
  • Phenotype records: 700+

Release Notes

  • iFern database is available online on November 2018.
  • Geographical and phenotype data is publicly accessible since August 2018.
  • RNA-Seq data is publicly accessible since 2017.

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