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Top 5 plants with the largest known genomes

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Genome size (haploid, Gbp) — Living-world superlatives

Snapshot · 2026-05-31

  1. 1

    Tmesipteris oblanceolata (fork fern)

    ~160 Gbp (largest genome of any organism)

  2. 2

    Paris japonica

    ~149 Gbp

  3. 3

    Tmesipteris obliqua

    ~147 Gbp

  4. 4

    Fritillaria assyriaca

    ~130 Gbp

  5. 5

    Lilium longiflorum

    ~36 Gbp