Malva verticillata L. (Synonym : Malva olitoria Nakai)

Family : Malvaceae

Mankyua chejuensis B.Y.Sun, M.H.Kim & C.H.Kim

Family : Ophioglossaceae

Marsdenia tomentosa C.Morren & Decne.

Family : Apocynaceae

Marsilea quadrifolia L. (Synonym : Spheroidia quadrifoliata Dulac)

Family : Marsileaceae

Matricaria chamomilla L.

Family : Asteraceae

Matricaria inodora L. (Synonym : Tripleurospermum maritimum (L.) W.D.J.Koch subsp. inodorum (L.) Appleq.)

Family : Asteraceae

Matricaria limosa (Maxim.) Kudô (Synonym : Chamaemelum limosum Maxim.)

Family : Asteraceae

Matricaria matricarioides (Less.) Porter ex Britton (Synonym : Chamomilla suaveolens (Pursh) Rydb.)

Family : Asteraceae [Naturalized plant]

Matteuccia struthiopteris (L.) Tod. (Synonym : Pterinodes struthiopteris (L.) Kuntze)

Family : Onocleaceae

Mazus miquelii Makino (Synonym : Mazus englerianus Bonati)

Family : Scrophulariaceae