Magnolia × soulangeana
Magnolia stellata
Mahonia aquifolium
Maianthemum bifolium
Malaxis monophyllos
Malus × dasyphylla
Malus domestica
Malus sylvestris
Malva alcea
Malva moschata
Malva neglecta
Malva pusilla
Malva sylvestris
Malva sylvestris var. mauritiana
Malva verticillata var. crispa
Marrubium vulgare
Matricaria discoidea
Matricaria chamomilla
Matteuccia struthiopteris
Medicago × varia
Medicago falcata
Medicago lupulina
Medicago minima
Medicago monspeliaca
Medicago sativa
Melampyrum arvense
Melampyrum cristatum
Melampyrum nemorosum
Melampyrum pratense
Melampyrum sp.
Melampyrum subalpinum
Melampyrum sylvaticum
Melica ciliata
Melica nutans
Melica picta
Melica transsilvanica
Melica uniflora
Melilotus albus
Melilotus altissimus
Melilotus officinalis
Melissa officinalis
Melittis melissophyllum
Mentha × dalmatica
Mentha × piperita
Mentha × rotundifolia
Mentha × verticillata
Mentha aquatica
Mentha arvensis
Mentha longifolia
Mentha sp.
Menyanthes trifoliata
Mercurialis annua
Mercurialis perennis
Mespilus germanica
Meum athamanticum
Microrrhinum minus
Microthlaspi perfoliatum
Milium effusum
Mimulus guttatus
Minuartia smejkalii
Miscanthus sinensis
Miscanthus sinensis
Miscanthus sp.
Misopates orontium
Moehringia trinervia
Molinia arundinacea
Molinia caerulea
Molinia caerulea agg.
Molinia sp.
Moneses uniflora
Monotropa hypophegea
Monotropa hypopitys
Montia fontana
Montia fontana subsp. amporitana
Montia sp.
Morus alba
Morus nigra
Muscari armeniacum
Muscari botryoides
Muscari comosum
Muscari tenuiflorum
Mycelis muralis
Myosotis arvensis
Myosotis caespitosa
Myosotis discolor
Myosotis nemorosa
Myosotis palustris
Myosotis palustris agg.
Myosotis palustris subsp. laxiflora
Myosotis palustris subsp. palustris
Myosotis ramosissima
Myosotis sp.
Myosotis sparsiflora
Myosotis stenophylla
Myosotis stricta
Myosotis sylvatica
Myosoton aquaticum
Myosurus minimus
Myriophyllum alterniflorum
Myriophyllum spicatum
Myriophyllum verticillatum
Myrrhis odorata