Melicoccus bijugatus Melicope erythrococca
Melicytus ramiflorus Melinus nerviglumis 'Pink Crystals'
Melissa officinalis Melissa officinalis 'All Gold'
Melissa officinalis 'Aurea' Melocactus curvispinus
Melocactus intortus Melocactus pachyacanthus
Mentha aquatica Mentha aquatica 'Variegata'
Mentha arvensis Mentha x piperita
Mentha x piperita 'Chocolate Mint' Mentha x piperita 'Citrata'
Mentha x piperita 'Orangemint' Mentha x piperita 'Swiss'
Mentha x piperita 'Variegata' Mentha requienii
Mentha spicata 'Emerald and Gold' Mentha spicata 'Kentucky Colonel'
Mentha suaveolens 'Variegata' Mentzelia lindleyi
Menyanthes trifoliolata Mertensia sibirica
Mertensia virginica Meryta sinclairii
Metasequoia glyptostroboides Metasequoia glyptostroboides 'Gold Rush'
Metasequoia glyptostroboides 'Ogon' Metasequoia glyptostroboides 'Spire'
Metopium toxiferum Metrosideros excelsus
Metrosideros operculata Metrosideros perforata
Metrosideros robusta Metrosideros spp.
Michelia champaca Michelia crassipes
Michelia doltsopa Michelia doltsopa x figo
Michelia doltsopa x figo 'Allspice' Michelia doltsopa x figo 'Foveolata'
Michelia figo Michelia maudii
Michelia platypetala Michelia repens
Micranthocereus dolichos permaticus Microbiota decussata
Microbiota decussata 'Prides (Celtic Pride™)' Microgramma nitida
Microlepia strigosa Micromyrtus ciliata
Microstegium vimineum Microstrobos niphophilus
Mikania dentata Mikania scandens
Millettia taiwanensis Millettia thonningii
Miltonia Miltonia 'Hudson Bay'
Mimosa dysocarpa Mimosa grahamii
Mimosa pudica Mimulus 'Valentine'
Mimulus aurantiacus Mimulus bifidus
Mimulus bigelovii Mimulus cardinalis
Mimulus guttatus Mimulus luteus 'Yellow Velvet'
Mimulus ringens Minuartia verna
Mirabilis jalapa Miscanthus 'Super Stripe'
Miscanthus floridulus Miscanthus sinensis
Miscanthus sinensis 'Adagio' Miscanthus sinensis 'Autumn Light'
Miscanthus sinensis 'Cabaret' Miscanthus sinensis 'Central Park'
Miscanthus sinensis 'Cosmopolitan' Miscanthus sinensis 'Ferner Olsten'
Miscanthus sinensis 'Gracillimus' Miscanthus sinensis 'Graziella'
Miscanthus sinensis 'Huron Sunrise' Miscanthus sinensis 'Malepartus'
Miscanthus sinensis 'Morning Light' Miscanthus sinensis 'Nippon'
Miscanthus sinensis 'Puenktchen' Miscanthus sinensis 'Purpurascens'
Miscanthus sinensis 'Sarabande' Miscanthus sinensis 'Silberfeder'
Miscanthus sinensis 'Strictus' Miscanthus sinensis 'Variegatus'
Miscanthus sinensis 'Yaku Jima' Miscanthus sinensis 'Zebrinus'
Miscanthus sinensis condensatus 'Silverbell' Mitchella repens