1. Yellow-green fern of rocky areas of northern hemisphere
   - limestone fern, northern oak fern

Type of: fern

• genus Melursus
• genus Menippe
• genus Meniscium
• genus Menispermum
• genus Menopon
• genus Mentha
• genus Menticirrhus
• genus Mentzelia
• genus Menura
• genus Menyanthes
• genus Menziesia
• genus Mephitis
• genus Mercenaria
• genus Mercurialis
• genus Mergus
• genus Meriones
• genus Merlangus
• genus Merluccius
• genus Merops
• genus Mertensia
• genus Meryta
• genus Mesembryanthemum
• genus Mesocricetus
• genus Mesohippus
• genus Mespilus