Malva alcea Malva alcea 'Fastigiata'
Malva moschata Malva moschata 'Alba'
Malva sylvestris 'Zebrina' Malvaviscus arboreus
Mammea americana Mammillaria bocasana
Mammillaria bombycina Mammillaria compressa
Mammillaria dioica Mammillaria elongata
Mammillaria geminispina Mammillaria geminispina 'Cristata'
Mammillaria hahniana Mammillaria hertrichiana
Mammillaria longimamma Mammillaria muehlenpfordtii
Mammillaria mystax Mammillaria nivosa
Mammillaria parkinsonii Mammillaria plumosa
Mammillaria polythele Mammillaria pringlei
Mammillaria scrippsiana Mandevilla 'Sun Parasol® Crimson'
Mandevilla 'Sun Parasol® Giant Crimson' Mandevilla 'Sun Parasol® Giant Pink'
Mandevilla 'Sun Parasol® Giant White' Mandevilla 'Sun Parasol® Pretty Crimson'
Mandevilla 'Sun Parasol® Pretty Pink' Mandevilla x amoena 'Alice du Pont'
Mandevilla x amoena 'Janelle' Mandevilla x amoena 'Leah'
Mandevilla x amoena 'Rita Marie Green' Mandevilla splendens
Manettia cordifolia Manettia luteorubra
Mangifera indica Manglietia yunnanensis
Manihot esculenta 'Lani' Manihot esculenta 'Variegata'
Manilkara bahamensis Manilkara bidentata
Manilkara zapota Maranta leuconeura
Maranta leuconeura 'Erythroneura' Maranta leuconeura var. kerchoviana
Marrubium supinum Marsilea drummondi
Marsilea mutica Marsilea schelpiana
Mascagnia macroptera Masdevallia ignea
Mastichodendron foetidissimum Matelea obliqua
Matteuccia struthiopteris Matthiola incana
Matthiola incana 'White Christmas' Matucana aurantiaca
Matucana madisoniorum Maytenus boaria
Maytenus phyllanthoides Mazus reptans
Mazus reptans 'Albus' Mecardonia procumbens
Mecardonia procumbens 'Gold Flake' Meconopsis betonicifolia
Meconopsis betonicifolia 'Lingholm' Meconopsis cambrica
Medinilla magnifica Megaskepasma erythrochlamys
Melaleuca armillaris Melaleuca biconvexa
Melaleuca bracteata 'Revolution Green' Melaleuca cheelii
Melaleuca cuticularis Melaleuca elliptica
Melaleuca glomerata Melaleuca howeana
Melaleuca huegelii Melaleuca incana
Melaleuca linariifolia Melaleuca megacephala
Melaleuca nesophila Melaleuca nodosa
Melaleuca scabra Melaleuca squamea
Melaleuca styphelioides Melaleuca viridiflora var. rubriflora
Melaleuca xerophila Melampodium leucanthum
Melampodium paludosum 'Lemon Delight' Melampodium paludosum 'Lemon Yellow'
Melampodium paludosum 'Medallion' Melampodium paludosum 'Million Gold'
Melampodium paludosum 'Showstar' Melia azederach
Melia azederach 'Jade Snowflake' Melianthus major