M
- ``Maackia``
- ``Macfadyena``
- ``Machaeranthera``
- ``Mackaya``
- ``Macleania``
- ``Macleaya``
- ``Maclura`` - Monkey Osage
- ``Macropidia``
- ``Macrozamia``
- ``Magnolia`` - Manolya
- ``Mahonia``
- ``Maianthemum`` (May lily)
- ``Maihuenia``
- ``Malcolmia``
- ``Malephora``
- ``Malope``
- ``Malpighia``
- ``Malus`` - Elma -(apple, crabapple)
- ``Malva`` - Ebegümeci - (mallow)
- ``Malvastrum``
- ``Malvaviscus``
- ``Mammillaria``
- ``Mandevilla``
- ``Mandragora`` - Adam otu - (mandrake)
- ``Manettia``
- ``Manglietia``
- ``Maranta``
- ``Margyricarpus``
- ``Marrubium`` (horehound)
- ``Marsilea`` (pepperwort)
- ``Masdevallia`` (an orchid genus)
- ``Matteuccia``
- ``Matthiola`` (stock)
- ``Maurandella``
- ``Maurandya``
- ``Maxillaria`` (an orchid genus)
- ``Maytenus``
- ``Mazus``
- ``Meconopsis``
- ``Medicago`` - Yonca (``şark yoncası, kaba yonca``)- (Alfalfa)
- ``Medinilla``
- ``Meehania``
- ``Megacodon``
- ``Megaskepasma``
- ``Melaleuca`` (paperbark)
- ``Melasphaerula``
- ``Melastoma``
- ``Melia``
- ``Melianthus``
- ``Melica`` (melick)
- ``Melicytus``
- ``Melinis``
- ``Meliosma``
- ``Melissa`` (balm)
- ``Melittis`` (bastard balm)
- ``Melocactus``
- ``Menispermum`` (moonseed)
- ``Mentha`` (mint)
- ``Mentzelia`` (starflower)
- ``Menyanthes``
- ``Menziesia``
- ``Merendera``
- ``Merremia``
- ``Mertensia``
- ``Mespilus`` - Muşmula
- ``Metasquoia`` (dawn redwood)
- ``Metrosideros``
- ``Meum``
- ``Mexicoa``
- ``Michauxia``
- ``Michelia``
- ``Microbiota``
- ``Microcachrys``
- ``Microlepia``
- ``Micromeria``
- ``Mikania``
- ``Milium``
- ``Milla``
- ``Millettia``
- ``Miltonia`` (an orchid genus)
- ``Miltoniopsis`` (pansy orchid)
- ``Mimetes``
- ``Mimosa`` (mimosa, or sensitive plant)
- ``Mimulus`` (monkey flower)
- ``Mirabilis`` - Akşam Sefası
- ``Miscanthus``
- ``Mitchella`` (partridge berry)
- ``Mitella``
- ``Mitraria``
- ``Molinia``
- ``Moltkia``
- ``Moluccella``
- ``Monadenium``
- ``Monanthes``
- ``Monarda`` (bee balm)
- ``Monardella``
- ``Monstera``
- ``Moraea``
- ``Morina``
- ``Morisia``
- ``Morus`` - Dut - (mulberry)
- ``Mucuna``
- ``Muehlenbeckia``
- ``Mukdenia``
- ``Musa`` - Muz - (banana, plantain)
- ``Muscari`` - Misk Soğanı - (grape hyacinth)
- ``Mussaenda``
- ``Mutisia``
- ``Myoporum``
- ``Myosotidium``
- ``Myosotis`` - Unutmabeni - (forget-me-not)
- ``Myrica``
- ``Myriophyllum`` (milfoil)
- ``Myrrhis`` (sweet cicely)
- ``Myrsine``
- ``Myrteola``
- ``Myrtillocactus``
- ``Myrtus`` - Mersin
