Macho, Ocotillo 'Macrantha' Royal Purple Brunfelsia
Macranthum Azalea (spp.) Macranthum Azalea 'Kate Arendall'
'Macrostachya' Common Lilac Madagascar Dragon Tree
'Madame Emile Mouillere' Bigleaf Hydrangea 'Madame GJ Bier' Bigleaf Hydrangea
'Madonna' Black Elderberry Madwort: spinosum
Magellan Barberry Dwarf 'Magenta Red' Crapemyrtle
'Maggie Brown' Azalea 'Magic Berry' Snowberry
'Magic Carpet' Japanese Spirea Magic Flower
Magic Flower of the Incas 'Magician' Rose Deutzia
'Magnifica' Rugose Rose 'Magnificia' Trumpet Honeysuckle
Magnolia 'Ann' Magnolia 'Betty'
Magnolia 'Dark Shadow' Magnolia 'Elisa Odenwald'
Magnolia 'Encore' Magnolia 'Hattie Carthan'
Magnolia 'Jane' Magnolia 'Judy'
Magnolia 'King Rose' Magnolia 'Legend'
Magnolia 'Marillyn' Magnolia 'Nimbus'
Magnolia 'Pinkie' Magnolia 'Purple'
Magnolia 'Susan' Magnolia 'Winelight'
Magnolia 'Yellow Bird' Magnolia 'Yellow Lantern'
Magnolia, Ashe Magnolia, Big-leaf
Magnolia, Chinese 'Verbanica' Magnolia, Huangshan
Magnolia, Korean Mountain Magnolia, Oyama
Magnolia, Siebold's Magnolia, Star 'Leonard Russell'
Magnolia, Star 'Rubra' Magnolia: cylindrica, Chinese
Magnolia: soulangianahybrid, Saucer 'Verbanica' 'Magpie' Chinese Stachyurus
Mahoe Variegated Mahogany, Birch Leaved Mountain
Mahogany, Brush Mahogany, Desert
Mahogany, Mountain Mahogany, Small leaf
Mahogany: montanus blancheae, Mountain Mahonia, Fortune's
Mahonia, Leatherleaf Mahonia, Nevin's
'Mai mori' Japanese Maple Maidenbush
'Maiden's Blush' Lilac: hyacinthiflorahybrid Maiden's Wattle
'Maike' Rose of Sharon 'Maki' Southern Yew
Mallee, Bell-fruited Mallee, Blue
Mallee, Bookleaf Mallee, Curly
Mallee, Kruse's Mallee, Rose
Mallee, Scrub Mallow, African (spp.)
Mallow, African 'Tara's Pink' Mallow, California Tree
Mallow, Cape (spp.) Mallow, Island Shrub
Mallow, Jew's (spp.) Mallow, Jew's 'Albaflora'
Mallow, Jew's 'Aureovitla' Mallow, Jew's 'Golden Guinea'
Mallow, Jew's 'Picta' Mallow, Jew's 'Shannon'
Mallow, Superstition Mallow, Tree 'Salmon Beauty'
Mallow, Wax Malva Rosa
Manchurian Lilac 'Miss Kim' Manchurian Viburnum
Mandioca 'Lani' Mandioca Variegated
'Mandrin Lights' Great Rhododendron 'Manelys' Shrubby Cinquefoil
'Maney' Chinese Juniper Mangle Dulce
Mangrove, Gray Mangrove, Red
'Manhattan' Spreading Euonymus