| Specie | Famiglia | Autore |
|---|---|---|
| Maianthemum bifolium (L.) Schmidt | Asparagaceae | Voglino |
| Matricaria chamomilla L. | Asteraceae | Vari |
| Medicago arabica (L.) Hudson | Fabaceae | Gardini |
| Medicago lupulina L. | Fabaceae | Gardini |
| Medicago orbicularis (L.) Bartal. | Fabaceae | Vari |
| Medicago sativa L. subsp. falcata (L.) Arcang. | Fabaceae | Gardini |
| Medicago sativa L. | Fabaceae | Gardini |
| Melampyrum arvense L. | Orobanchaceae | Gardini |
| Melilotus albus Medik. | Fabaceae | Gardini |
| Melilotus officinalis (L.) Pallas | Fabaceae | Gardini |
| Mentha pulegium L. | Lamiaceae | Vari |
| Mercurialis annua L. | Euphorbiaceae | Vari |
| Moneses uniflora (L.) A. Grey | Ericaceae | Voglino |
| Morus alba L. | Moraceae | Vari |
| Muscari comosum (L.) Mill. | Asparagaceae | Gardini |
| Myosotis alpestris Schm. | Boraginaceae | Voglino |
| Myosotis arvensis (L.) Hill | Boraginaceae | Gardini |
| Myosotis scorpioides L. | Boraginaceae | Vari |
