Malus domestica
Malus sylvestris
Malva sylvestris
Matricaria discoidea
Matricaria maritima – synonym of Tripleurospermum maritimum
Matricaria perforata – synonym of Tripleurospermum inodorum
Meconopsis cambrica
Medicago lupulina
Medicago sativa
Melampyrum pratense
Mentha aquatica
Mentha arvensis
Mentha spicata
Mentha suaveolens
Menyanthes trifoliata
Mercurialis perennis
Mimulus guttatus
Minuartia verna
Moehringia trinervia
Monotropa hypopitys
Montia fontana
Mycelis muralis
Myosotis arvensis
Myosotis discolor
Myosotis laxa
Myosotis scorpioides
Myosotis secunda
Myrica gale
Myriophyllum alterniflorum
Myriophyllum spicatum
Myriophyllum verticillatum