Common Name - -	Family : Order
Macana palm - -	Arecaceae : Arecales
Macaw palm - -	Arecaceae : Arecales
MacFarlane's four o'clock - -	Nyctaginaceae : Caryophyllales
Madagascar jasmine - -	Apocynaceae : Gentianales
Madonna lily - -	Liliaceae : Liliales
Mahogany - -	Meliaceae : Sapindales
Mahonia - -	Berberidaceae : Ranunculales
Maiden pink - -	Caryophyllaceae : Caryophyllales
Mango - -	Anacardiaceae : Sapindales
Mangrove apple - -	Lythraceae : Myrtales
Mangrove orchid - -	Orchidaceae : Asparagales
Mangrove palm - -	Arecaceae : Arecales
Marsh palm - -	Arecaceae : Arecales
Mauriti palm - -	Arecaceae : Arecales
Meadow sage - -	Lamiaceae : Lamiales
Meadowsweet - -	Rosaceae : Rosales
Mediterranean sage - -	Lamiaceae : Lamiales
Melon - -	Cucurbitaceae : Cucurbitales
Mexican calabash - -	Bignoniaceae : Lamiales
Mexican evergreen magnolia - -	Magnoliaceae : Magnoliales
Mirror orchid - -	Orchidaceae : Asparagales
Mistletoe - -	Loranthaceae : Santalales
Mistletoe fig - -	Moraceae : Rosales
Moccasin flower - -	Orchidaceae : Asparagales
Modoc bog orchid - -	Orchidaceae : Asparagales
Monkey goblet - -	Orchidaceae : Asparagales
Monkey pot - -	Lecythidaceae : Ericales
Moreton bay fig - -	Moraceae : Rosales
Moss phlox - -	Polemoniaceae : Ericales
Moth orchid - -	Orchidaceae : Asparagales
Mother of pearl flower - -	Orchidaceae : Asparagales
Mountain magnolia - -	Magnoliaceae : Magnoliales
Mountain orchid - -	Orchidaceae : Asparagales
Multi-flower orchid - -	Orchidaceae : Asparagales
Musk orchid - -	Orchidaceae : Asparagales