MACLEAYA kewensis ‘Flamingo’
MADDENIA hypoleuca
MAHOBERBERIS aquisargentii
MAHONIA aquifolium ‘Maqui’
MAHONIA fremontii
MAHONIA ‘Maharaja’
MAHONIA nervosa
MAHONIA nervosa ‘Calypso’
MAHONIA pinnata
MAHONIA pumila
MAHONIA repens
MAHONIA trifoliolata
MAHONIA ‘Well Meadow’
MAHONIA wilcoxii
MAHONIA wagneri ‘Vicaryi’
MAHONIA aquifolium ‘Green Ripple’
MAHONIA cultivar
MAHONIA aquifolium ‘Apollo’
MAHONIA haematocarpa ‘Variegated’
MAHONIA wagneri ‘Pinnacle’
MAHONIA gracilipes
MAHONIA wagneri ‘Hastings Elegant’
MAHONIA napaulensis
MAHONIA wagneri ‘Fireflame’
MAHONIA aquifolium ‘Orange Flame’
MAIANTHEMUM bifolium kamtschaticum minimum
MAIANTHEMUM canadense
MALVA moschata alba
MANDRAGORA autumnalis
MANDRAGORA officinarum
MATTEUCCIA orientalis
MECONOPSIS betonicifolia
MECONOPSIS betonicifolia ‘Hensol Violet’
MECONOPSIS betonicifolia alba
MECONOPSIS chelidoniifolia
MECONOPSIS ‘Lingholm’
MECONOPSIS George Sherriff Group
MECONOPSIS ‘Jimmy Bayne’
MECONOPSIS grandis
MECONOPSIS ‘Bobby Masterton’
MECONOPSIS ‘Crewdson Hybrid’
MECONOPSIS ‘Slieve Donard’
MECONOPSIS Kingsbarns hybrids
MECONOPSIS quintuplinervia
MECONOPSIS villosa
MECONOPSIS sheldonii cultivar
MECONOPSIS ‘Lingholm’ selected
MECONOPSIS cambrica ‘Frances Perry’
MECONOPSIS cambrica ‘Muriel Brown’
MECONOPSIS cambrica flore-pleno
MELANOSELINUM decipiens
MELIANTHUS major
MELICA uniflora ‘Variegata’
MENTHA requienii
MERTENSIA franciscana
MEUM athamanticum
MILIUM effusum ‘Aureum’
MILIUM effusum ‘Yaffle’
MILLIGANIA densiflora
MIMULUS ‘Orkney Lemon’
MIMULUS ‘Threave Variegated’
MIMULUS cardinalis
MISCANTHUS sinensis ‘Malepartus’
MISCANTHUS sinensis ‘Morning Light’
MISCANTHUS sinensis ‘Poseidon’
MISCANTHUS sinensis ‘Spätgrün’
MISCANTHUS sinensis ‘Variegatus’
MISCANTHUS giganteus
MISCANTHUS sinensis ‘Yaku-jima’
MISCANTHUS sinensis ‘Gracillimus’
MISCANTHUS sinensis ‘Dixieland’
MISCANTHUS sinensis ‘Zebrinus’
MISCANTHUS sinensis ‘Cabaret’
MISCANTHUS oligostachyus
MISCANTHUS sinensis ‘Kleine Silberspinne’
MISCANTHUS sinensis ‘Silberfeder’
MISCANTHUS sinensis ‘Yakushima Dwarf’
MITELLA breweri
MITRARIA coccinea
MITRARIA coccinea ‘Lake Caburgua’
MOLINIA caerulea ‘Bergfreund’
MOLINIA caerulea ‘Moorhexe’
MOLINIA caerulea ‘Claerwen’
MOLINIA caerulea ‘Skyracer’
MOLINIA caerulea Dauerstrahl’
MOLINIA caerulea ‘Moorflamme’
MOLINIA caerulea ‘Variegata’
MOLINIA caerulea ‘Edith Dudszus’
MOLINIA caerulea ‘Strahlenquelle’
MOLINIA caerulea ‘Transparent’
MOLINIA caerulea ‘Fontäne’
MOLOPOSPERMUM peloponnesiacum
MONARDA ‘Adam’
MONARDA ‘Beauty of Cobham’
MONARDA ‘Gardenview’
MONARDA ‘Gardenview Scarlet’
MONARDA ‘Marshall’s Delight’
MONARDA ‘Sagittarius’
MONARDA ‘Prärienacht’
MONARDA ‘Balance’
MONARDA menthifolia
MORAEA species
MORAEA spathulata
MORINA longifolia
MOSLA grosseserrata
MUEHLENBECKIA complexa trilobata
MUEHLENBECKIA axillaris
MUKDENIA rossii ex. Japan
MUKDENIA rossii
MUKDENIA rossii dwarf
MUSA valentina
MUSA basjoo
MYOSOTIDIUM hortensia white
MYOSOTIDIUM hortensia
MYOSOTIS australis
MYRRHIS odorata ‘Forncett Chevron’