Mahonia aquifolium
Maianthemum bifolium
Malaxis monophyllos
Malus domestica
Malus sp.
Malva alcea
Malva moschata
Malva neglecta
Malva pusilla
Malva sylvestris
Malva sylvestris var. mauritiana
Malva sylvestris var. sylvestris
Marrubium vulgare
Marsilea quadrifolia
Matricaria discoidea
Matricaria chamomilla
Matteuccia struthiopteris
Meconopsis cambrica
Medicago × varia
Medicago falcata
Medicago lupulina
Medicago minima
Medicago rigidula
Medicago sativa
Melampyrum arvense
Melampyrum nemorosum
Melampyrum nemorosum var. nemorosum
Melampyrum pratense
Melampyrum sylvaticum
Melampyrum sylvaticum agg.
Melica ciliata
Melica nutans
Melica transsilvanica
Melica uniflora
Melilotus albus
Melilotus altissimus
Melilotus dentatus
Melilotus officinalis
Melilotus sp.
Melissa officinalis
Melittis melissophyllum
Mentha × dumetorum
Mentha × gracilis
Mentha × piperita
Mentha × rotundifolia
Mentha × verticillata
Mentha aquatica
Mentha arvensis
Mentha longifolia
Mentha sp.
Menyanthes trifoliata
Mercurialis annua
Mercurialis perennis
Microrrhinum litorale
Microrrhinum minus
Microthlaspi perfoliatum
Microthlaspi perfoliatum agg.
Milium effusum
Mimulus guttatus
Mimulus ringens
Minuartia rubra
Minuartia setacea
Mirabilis jalapa
Miscanthus × giganteus
Miscanthus sinensis
Misopates orontium
Moehringia trinervia
Molinia arundinacea
Molinia caerulea
Molinia caerulea agg.
Moneses uniflora
Monotropa hypophegea
Monotropa hypopitys
Monotropa hypopitys agg.
Monotropa sp.
Montia fontana
Montia sp.
Muscari armeniacum
Muscari botryoides
Muscari comosum
Muscari latifolium
Muscari neglectum
Muscari sp.
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 sparsiflora
Myosotis stricta
Myosotis sylvatica
Myosoton aquaticum
Myosurus minimus
Myricaria germanica
Myriophyllum spicatum
Myriophyllum verticillatum
Myrrhis odorata