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M Mahons Long Orange Capsicum Pepper ( Capsicum annuum )
M ajestic Orchid ( Lagerstroemia indica )
M. Chaguerand Ghent Hybrid Azalea ( Rhododendron hybrida )
M. Charles van Wambeke Mollis Hybrid Azalea ( Rhododendron )
M. Evelyn Stetson Hardy Water Lily ( Nymphaea )
M. Jules Putzeys Mollis Hybrid Azalea ( Rhododendron )
M. Koster Mollis Hybrid Azalea ( Rhododendron )
M. P. Mills Sword Fern ( Nephrolepis exaltata )
M. R. Mulford Pericat Hybrid Azalea ( Rhododendron )
M. x thompsoniana ( Magnolia thompsoniana )
M.A. Jeans Orchid Cactus ( Nopalxochia )
Ma Flodder Fuchsia ( Fuchsia )
Maanelys Potentilla ( Potentilla fruticosa )
Maas False Cypress ( Chamaecyparis lawsoniana )
Maasihatiko Lima Bean ( Phaseolus lunatus )
Maasii Cactus ( Parodia maasii )
Mabel Bryan Camellia ( Camellia japonica )
Mabel Corwin Begonia ( Begonia Mabel Corwin )
Mabel Grey Geranium ( Pelargonium )
Mabelle Edwards Fuchsia ( Fuchsia )
Mable Cody Siberian beardless Iris ( Iris )
Mac MacIntyre Begonia ( Begonia Mac MacIntyre )
Mac Pink Tomato ( Lycopersicon esculentum )
Mac-Alice Begonia ( Begonia Mac-Alice )
MacPenneys Pink Penstemon ( Penstemon )
MacSpur Apple ( Malus domestica )
Macarthur Palm ( Ptychosperma macarthurii )
Macartney Rose ( Rosa )
Macata Crabapple ( Malus )
Maccata Begonia ( Begonia Maccata )
Macedonian Pine ( Pinus peuce )
Macho Begonia ( Begonia Macho )
Machu Picchu Fuchsia ( Fuchsia )
Mackays Heath ( Erica mackaiana )
Mackliniae Lily ( Lilium mackliniae )
Macklottii Magnolia ( Magnolia macklottii )
Macon River Cane ( Arundinaria gigantea )
Macoun Apple ( Malus domestica )
Macracantha Cactus ( Opuntia macracantha )
Macrantha Campanula ( Campanula latifolia )
Macrantha Double Indica Azalea ( Rhododendron indicum )
Macrantha Dwarf Indica Azalea ( Rhododendron )
Macrantha Fl. PL Satsuki Azalea ( Rhododendron hybrida )
Macrantha Indica Azalea ( Rhododendron indicum )
Macrantha Pink Indica Azalea ( Rhododendron indicum )
Macrobotrys Wisteria ( Wisteria floribunda )
Macrocarpa Begonia ( Begonia macrocarpa hort. )
Macrocarpa Eucalyptus ( Eucalyptus macrocarpa )
Macrophylla Canadian Hemlock ( Tsuga canadensis )
Macrophylla Holly ( Ilex crenata )
Macrophylla Japanese Spiraea ( Spiraea japonica )
Macrophylla Marsh Andromdeda ( Andromeda polifolia )
Macrorhiza Cactus ( Opuntia macrorhiza )
Macrostachya Common Lilac ( Syringa vulgaris )
Macrostachys Scotch Laburnum ( Laburnum alpinum )
Macs Gold Begonia ( Begonia Mac s Gold )
Maculata Begonia ( Begonia maculata )
Maculata Eucalyptus ( Eucalyptus maculata )
Maculata Golden Elaeagnus ( Elaeagnus pungens )
Maculata Tolmiea ( Tolmiea menziesii )
Maculatum Lily ( Lilium maculatum )
Maculatus Cistus ( Cistus aguilarii )
Madagascar Jasmine ( Stephanotis jasminoides )
Madam Auban Fuchsia ( Fuchsia )
Madam Carnatt Fuchsia ( Fuchsia )
Madam Carolyn Fuchsia ( Fuchsia )
Madam Danjoux Fuchsia ( Fuchsia )
Madam Jacques Feuillet Fuchsia ( Fuchsia )
Madam Jules Chretein Fuchsia ( Fuchsia )
Madame Abel Chatney Tropical Water Lily ( Nymphaea )
Madame Alexander Hardy Ghent Hybrid Azalea ( Rhododendron hybrida )
Madame Ambroise Verschaffelt Mollis Hybrid Azalea ( Rhododendron )
Madame Anthony Koster Mollis Hybrid Azalea ( Rhododendron )
Madame Antoine Riviere Peony ( Paeonia lactiflora )
Madame Auguste Tezier Tropical Water Lily ( Nymphaea )
Madame Bocquet Mollis Hybrid Azalea ( Rhododendron )
Madame Bory Latour Marliac Hardy Water Lily ( Nymphaea )
Madame Briot English Holly ( Ilex aquifolium )
Madame Bucquet Peony ( Paeonia lactiflora )
Madame Butterfly Camellia ( Camellia japonica )
Madame Butterfly Snapdragon ( Antirrhinum majus )
Madame Carnot Fuchsia ( Fuchsia )
Madame Carvalho Catawba Rhododendron ( Rhododendron catawbiense )
Madame Chang Fuchsia ( Fuchsia )
Madame Charles Souchet Common Lilac ( Syringa vulgaris )
Madame Claude Allard Peony ( Paeonia lactiflora )
Madame Cochet Catawba Rhododendron ( Rhododendron catawbiense )
Madame Cornelissen Fuchsia ( Fuchsia )
Madame De Pompadour Tulip ( Tulipa )
Madame Ernest Saintin Ghent Hybrid Azalea ( Rhododendron hybrida )
Madame Galen Trumpet Vine ( Campsis tagliabuana )
Madame Ganna Walska Tropical Waterlily ( Nymphaea )
Madame Gaudichau Peony ( Paeonia lactiflora )
Madame Georges Berger Ghent Hybrid Azalea ( Rhododendron hybrida )
Madame Henri Fuchs Peony ( Paeonia lactiflora )
Madame Henry Belgian Indica Azalea ( Rhododendron )
Madame Herbert Cutbush Tropical Water Lily ( Nymphaea )
Madame Jean Bohn Peony ( Paeonia lactiflora )
Madame Joseph Baumann Ghent Hybrid Azalea ( Rhododendron hybrida )
Madame Julien Chifflot Hardy Water Lily ( Nymphaea )
Madame Lantelme Fuchsia ( Fuchsia )
Madame Le Page Viger Tropical Water Lily ( Nymphaea )
Madame Lefeber Tulip ( Tulipa )
Madame Margotten Satsuki Azalea ( Rhododendron hybrida )
Madame Masson Catawba Rhododendron ( Rhododendron catawbiense )
Madame Maurice Laydeker Hardy Water Lily ( Nymphaea )
Madame Moire Fuchsia ( Fuchsia )
Madame P. Cazeneuve Hardy Water Lily ( Nymphaea )
Madame Paufique Lotus ( Nelumbo )
Madame Paul Gervais Ghent Hybrid Azalea ( Rhododendron hybrida )
Madame Petrick Belgian Indian Hybrid Azalea ( Rhododendron )
Madame Petrique Belgian Indica Azalea ( Rhododendron )
Madame Queen Fuchsia ( Fuchsia )
Madame Spoor Tulip ( Tulipa )
Madame Testout Tulip ( Tulipa )
Madame Van Der Strasse Fuchsia ( Fuchsia )
Madame Van Gele Belgian Indica Azalea ( Rhododendron )
Madame Wilfron Gonnere Water Lily ( Nymphaea )
Madame de Bonseigneur Hardy Water Lily ( Nymphaea )
Madame de Strekaloff Camellia ( Camellia japonica )
Madame de Vatry Peony ( Paeonia lactiflora )
Madamoiselle Sieber Mollis Hybrid Azalea ( Rhododendron )
Madcap Glenn Dale Azalea ( Rhododendron hybrida )
Madeira Glenn Dale Azalea ( Rhododendron hybrida )
Madeleine Exbury Azalea ( Rhododendron )
Madeline Spitta Maple ( Acer davidii )
Madelon Begonia ( Begonia octopetala )
Madelon Peony ( Paeonia lactiflora )
Mademoiselle Fuchsia ( Fuchsia )
Mademoiselle Jeanne Siere Ghent Hybrid Azalea ( Rhododendron hybrida )
Mademoiselle Jeanne Tissarand Ghent Hybrid Azalea ( Rhododendron hybrida )
Mademoiselle Paula Van Acker Belgian Indica Azalea ( Rhododendron belgian )
Madigascar Dragon Tree ( Dracaena marginata )
Madison Ave Gladiolus ( Gladiolus )
Madison Confederate Jasmine ( Trachelospermum jasminoides )
Madison Garden Tulip ( Tulipa )
Madison Magnolia ( Magnolia grandiflora )
Madison Peach ( Prunus persica )
Mado no tsuki Kyushu Azalea ( Rhododendron kiusianum )
Madonna Belgian Indica Azalea ( Rhododendron )
Madonna Brooks Azalea ( Rhododendron hybrida )
Madonna Flowering Crabapple ( Malus )
Madonna Lily ( Lilium candidum )
Madras Podding Radish ( Raphanus sativus )
Madrid Begonia ( Begonia Madrid )
Madrid Leach Rhododendron ( Rhododendron )
Madrigal Glenn Dale Azalea ( Rhododendron hybrida )
Madrona ( Arbutus menziesii )
Madurodam Fuchsia ( Fuchsia )
Madylone Peony ( Paeonia lactiflora )
Mae ( Ilex opaca )
Mae Blanton Begonia ( Begonia Mae Blanton )
Mae Graham Daylily ( Hemerocallis hybrida )
Maestro Peony ( Paeonia lactiflora )
Maestro Shelling Pea ( Pisum sativum )
Mafolie Dahlia ( Dahlia )
Magda Geranium ( Pelargonium )
Magda Holly ( Ilex crenata )
Magdalena Big Cheese Summer Squash ( Cucurbita moschata )
Magdalena Cushaw Winter Squash ( Cucurbita argyrosperma )
Magdalene Madsen Begonia ( Begonia Magdalene Madsen )
Magdalene Mock Orange ( Philadelphus magdalenae )
Magellan Barberry ( Berberis buxifolia )
Maggadan Iris ( Iris germanica )
Maggie Little Fuchsia ( Fuchsia )
Maggie Makepiece Fuchsia ( Fuchsia )
Magic Berry ( Symphoricarpos doorenbosii )
Magic Carpet Begonia ( Begonia Magic Carpet )
Magic Carpet Gladiolus ( Gladiolus )
Magic Carrousel Rose ( Rosa )
Magic Dragon Rose ( Rosa )
Magic Elf Begonia ( Begonia Magic Elf )
Magic Filigree Daylily ( Hemerocallis hybrida )
Magic Flute Fuchsia ( Fuchsia )
Magic Fuchsia ( Fuchsia )
Magic Glenn Dale Azalea ( Rhododendron hybrida )
Magic Lace Begonia ( Begonia Magic Lace )
Magic Man Tall Bearded Iris ( Iris )
Magic Moment Dahlia ( Dahlia )
Magic Orb Peony ( Paeonia )
Magic Pink Lily ( Lilium )
Magic Red Capsicum Pepper ( Capsicum annuum )
Magic Sunset Rose ( Rosa )
Magic Valley Begonia ( Begonia Magic Valley )
Magician Tulip ( Tulipa )
Magier Tulip ( Tulipa )
Magna Fuchsia ( Fuchsia )
Magna Semen ( Ilex opaca )
Magnate Fuchsia ( Fuchsia )
Magness Pear ( Pyrus communis )
Magnet Fuchsia ( Fuchsia )
Magnifica ( Nymphaea lotus var. dentata )
Magnifica Albicans Ghent Hybrid Azalea ( Rhododendron hybrida )
Magnifica Aurea False Cypress ( Chamaecyparis lawsoniana )
Magnifica Cactus ( Parodia magnifica )
Magnifica Chinese Arborvitae ( Platycladus orientalis )
Magnifica Compacta Hinoki False Cypress ( Chamaecyparis obtusa )
Magnifica Flowering Dogwood ( Cornus florida )
Magnifica Fuchsia ( Fuchsia )
Magnifica Ghent Hybrid Azalea ( Rhododendron hybrida )
Magnifica Honeysuckle ( Lonicera sempervirens )
Magnifica Peony ( Paeonia lactiflora )
Magnifica Rose ( Rosa )
Magnifica Sorbus ( Sorbus aria )
Magnifica Sword Fern ( Nephrolepis exaltata )
Magnifica Western Azalea ( Rhododendron occidentale )
Magnificence Daffodil ( Narcissus )
Magnificence Lupine ( Lupinus )
Magnificent Fuchsia ( Fuchsia )
Magnificent Willow ( Salix magnifica )
Magnolia ( Magnolia )
Magnolia Flower Peony ( Paeonia lactiflora )
Magnolia Gladiolus ( Gladiolus )
Magnolia King Camellia ( Camellia japonica )
Magnolia Shell Pink Belgian Indica Azalea ( Rhododendron )
Magnoliaeflora Camellia ( Camellia japonica )
Magnum Bonum Pea ( Pisum sativum )
Magnus Begonia ( Begonia Magnus )
Magnus Coneflower ( Echinacea purpurea )
Magpie Bush Bean ( Phaseolus vulgaris )
Magpie Stachyrus ( Stachyurus praecox )
Magseed Rose ( Rosa )
Mahara Off-White Bougainvillea ( Bougainvillea x buttiana )
Maharaja Campbells Magnolia ( Magnolia campbellii )
Maharaja Fuchsia ( Fuchsia )
Maharanee Campbells Magnolia ( Magnolia campbellii )
Mahina Rose ( Rosa )
Mahler Torch Azalea ( Rhododendron kaempferi )
Mahogany Bee Balm ( Monarda )
Mahogany Japanese iris ( Iris kaempferi )
Mahogany Lily ( Lilium maculatum )
Mahogany Peony ( Paeonia lactiflora )
Mai Fleuri Peony ( Paeonia lactiflora )
Mai Hime Satsuki Azalea ( Rhododendron hybrida )
Mai Ogi Satsuki Azalea ( Rhododendron hybrida )
Mai Ohgi Kyushu Azalea ( Rhododendron kiusianum )
Mai-Hime Satsuki Azalea ( Rhododendron hybrida )
Maid Marian Peony ( Paeonia lactiflora )
Maid Marion Begonia ( Begonia Maid Marion )
Maid Marion Rose ( Rosa )
Maid of Orange Border Bearded Iris ( Iris )
Maid of Orleans Torch Flower ( Kniphofia )
Maiden Blush ( Ilex opaca )
Maiden Blush Apple ( Malus domestica )
Maiden Blush Moss Phlox ( Phlox subulata )
Maiden Grass ( Miscanthus sinensis )
Maiden Pink ( Dianthus deltoides )
Maidenblush Clarkia ( Clarkia amoena )
Maidenblush Sorbus ( Sorbus cashmiriana )
Maidenhair Fern ( Adiantum capillus veneris )
Maidenhair Fern Bausei ( Adiantum raddianum )
Maidenhair Fern Brillantelse ( Adiantum raddianum )
Maidenhair Fern Compactum ( Adiantum raddianum )
Maidenhair Fern Crested Gracillimum ( Adiantum raddianum )
Maidenhair Fern Cultivar A ( Adiantum raddianum )
Maidenhair Fern Cultivar B ( Adiantum raddianum )
Maidenhair Fern Cultivar C ( Adiantum raddianum )
Maidenhair Fern Cultivar D ( Adiantum raddianum )
Maidenhair Fern Cultivar E ( Adiantum raddianum )
Maidenhair Fern Cultivar F ( Adiantum raddianum )
Maidenhair Fern Cultivar G ( Adiantum raddianum )
Maidenhair Fern Flecked Grandiceps ( Adiantum raddianum )
Maidenhair Fern Gloriosum Roseum ( Adiantum tenerum )
Maidenhair Fern Legrandii ( Adiantum raddianum )
Maidenhair Tree ( Ginkgo biloba )
Maidens Blush Begonia ( Begonia Maiden s Blush )
Maidens Blush Camellia ( Camellia sasanqua )
Maidens Blush Daffodil ( Narcissus )
Maidens Blush Fuchsia ( Fuchsia )
Maidens Blush Kurume Hybrid Azalea ( Rhododendron )
Maidens Blush Poppy ( Papaver orientale )
Maidens Blush Rose ( Rosa )
Maidwell Hall Long Petalled Clematis ( Clematis macropetala )
Maigesho Satsuki Azalea ( Rhododendron hybrida )
Maigold Apple ( Malus domestica )
Maigold Rose ( Rosa )
Maigrun Boxleaf Honeysuckle ( Lonicera nitida )
Maika Camellia ( Camellia japonica )
Maike Fuchsia ( Fuchsia )
Maime Fuchsia ( Fuchsia )
Main Street Magnolia ( Magnolia grandiflora )
Maine Sunset Bush Bean ( Phaseolus vulgaris )
Maine Yellow Eye Bush Bean ( Phaseolus vulgaris )
Maingayi Magnolia ( Magnolia maingayi )
Maiogi Kyushu Azalea ( Rhododendron kiusianum )
Maioogi Kyushu Azalea ( Rhododendron kiusianum )
Mairisii Maidenhair Fern ( Adiantum capillus veneris )
Mairs Variety Heather ( Calluna vulgaris )
Maison Crousse Peony ( Paeonia lactiflora )
Maiz Blando Corn ( Zea mays )
Maja Ghent Hybrid Azalea ( Rhododendron hybrida )
Maja Tulip ( Tulipa )
Majestic Beauty Indian Hawthorn ( Raphiolepis indica )
Majestic Beauty Magnolia ( Magnolia grandiflora )
Majestic Camellia ( Camellia japonica )
Majestic Chrysanthemum ( Chrysanthemum )
Majestic Kerkrade Dahlia ( Dahlia )
Majestic Lilyturf ( Liriope muscari )
Majestic Rose Peony ( Paeonia lactiflora )
Majestica Fuchsia ( Fuchsia )
Majestica Sorbus ( Sorbus aria )
Majesticum Croton Codiaeum ( Codiaeum variegatum )
Majesty Corn ( Zea mays )
Majeure Rose ( Rosa )
Major Barbara Fuchsia ( Fuchsia )
Major Bearberry ( Cotoneaster dammeri )
Major Heaphy Fuchsia ( Fuchsia )
Major Ingold Fuchsia ( Fuchsia )
Major Japanese Holly ( Ilex crenata )
Major Kaffir Lily ( Schizostylis coccinea )
Major League Gladiolus ( Gladiolus )
Major Reticulata Bulbous Iris ( Iris histrioides )
Major Wheeler Honeysuckle ( Lonicera sempervirens )
Majorca Pink Rosemary ( Rosmarinus officinalis )
Majorca Rosemary ( Rosmarinus officinalis )
Majorcan Peony ( Paeonia cambessedesii )
Majorette Hollyhock ( Alcea rosea )
Majorica Pink Rosemary ( Rosmarinus officinalis )
Majus Staghorn Fern ( Platycerium bifurcatum )
Makade Camellia ( Camellia japonica )
Makamik Flowering Crabapple ( Malus )
Makassar Tulip ( Tulipa )
Make-up Tulip ( Tulipa )
Makessa Begonia ( Begonia Makessa )
Makinoi Bamboo ( Phyllostachys makinoi )
Malaga Rose ( Rosa )
Malagueta ( Capsicum baccatum )
Malahat Capsicum Pepper ( Capsicum annuum )
Malay Bamboo ( Dinochloa malayana )
Malaysian Evergreen ( Aglaonema costatum )
Malcolm Perkins Chrysanthemum ( Chrysanthemum )
Malde Begonia ( Begonia Malde )
Male Aquapaca ( Ilex opaca )
Male Bamboo ( Dendrocalamus strictus )
Male Fern ( Dryopteris filix mas )
Malibu Fuchsia ( Fuchsia )
Malicorne Rose ( Rosa )
Maliflora Camelia ( Camellia maliflora )
Maliformis Sorbus ( Sorbus domestica )
Mallory ( Ilex opaca )
Mallow ( Lavatera mauritanica )
Malones Hope Orchid ( Dendrobium )
Malonyana American Arborvitae ( Thuja occidentalis )
Malta Leach Rhododendron ( Rhododendron )
Maltese cross ( Lychnis chalcedonica )
Malvina Begonia ( Begonia Malvina )
Mama Bleuss Fuchsia ( Fuchsia )
Mamasa Tulip ( Tulipa )
Mamie Belgian Indica Azalea ( Rhododendron )
Mamie Eisenhower ( Ilex opaca )
Mamie Eisenhower Begonia ( Begonia Mamie Eisenhower )
Mamita Rose ( Rosa )
Mammillaria ( Mammillaria )
Mammoth Fennel ( Foeniculum vulgare )
Mammoth Russian Sunflower ( Helianthus annuus )
Mammoth Sweet Basil ( Ocimum basilicum )
Mammoth Wonder Tomato ( Lycopersicon esculentum )
Mammulosa Cactus ( Parodia mammulosa )
Man Size Camellia ( Camellia japonica )
Manalucie Tomato ( Lycopersicon esculentum )
Manapal Tomato ( Lycopersicon esculentum )
Manbeck Weeper Flowering Crabapple ( Malus )
Manchu Fan Umbrella Tree ( Magnolia macrophylla )
Manchu Potentilla ( Potentilla fruticosa )
Manchuria Eggplant ( Solanum melongena )
Manchurian Apricot ( Prunus mandshurica )
Manda Crested English Ivy ( Hedera helix )
Mandaianum Rabbits Foot Fern ( Phlebodium aureum )
Mandalay Chrysanthemum ( Chrysanthemum )
Mandalay Queen Camellia ( Camellia reticulata )
Mandaleen Peony ( Paeonia lactiflora )
Mandan Bride Corn ( Zea mays )
Mandan Strain #1 Summer Squash ( Cucurbita pepo )
Mandarin Begonia ( Begonia Mandarin )
Mandarin Fuchsia ( Fuchsia )
Mandarin Glenn Dale Azalea ( Rhododendron hybrida )
Mandarin Honeysuckle ( Lonicera brownii )
Mandarin Magic Flowering Crabapple ( Malus )
Mandarin Maid Knap Hill Azalea ( Rhododendron )
Mandarin Poppy ( Eschscholzia californica )
Mandarin Rose ( Rosa )
Mandarins Coat Peony ( Paeonia lactiflora )
Mandevilla My Fair Lady ( Mandevilla )
Mandevilla Red Riding Hood ( Mandevilla splendens )
Mandevilla Ruby Star ( Mandevilla )
Mandevilla Scarlet Pimpernel ( Mandevilla )
Mandevilla White Delight ( Mandevilla )
Mandschuria Japanese Tree Lilac ( Syringa reticulata )
Mandshurica Siberian Crabapple ( Malus baccata )
Manettii Rose ( Rosa )
Maney Chinese Juniper ( Juniperus chinensis )
Manginii Kalanchoe ( Kalanchoe manginii )
Mangles Kangaroo Paw ( Anigozanthos manglesii )
Manglietia ( Manglietia )
Mango ( Mangifera )
Mango Melon ( Cucumis melo )
Manhattan Blue Juniper ( Juniperus virginiana )
Manhattan Euonymus ( Euonymus kiautschovicus )
Manhattan Fuchsia ( Fuchsia )
Manhattan Glenn Dale Azalea ( Rhododendron hybrida )
Manhattan Perennial Ryegrass ( Lolium perenne )
Manhattan Plantain Lily ( Hosta )
Manifich Honeysuckle ( Lonicera sempervirens )
Manig ( Ilex opaca )
Manitoba Apple ( Malus domestica )
Manitoba Tomato ( Lycopersicon esculentum )
Mankichi-sugi Japanese Cedar ( Cryptomeria japonica )
Manna Gum ( Eucalyptus viminalis )
Mannii Bamboo ( Phyllostachys mannii )
Manning Miller Pear ( Pyrus communis )
Manor Sunset Dahlia ( Dahlia )
Mans Favorite Begonia ( Begonia Man s Favorite )
Mansaku Satsuki Azalea ( Rhododendron hybrida )
Mansfield Canadian Hemlock ( Tsuga canadensis )
Manteau dHermine Mock Orange ( Philadelphus )
Mantet Apple ( Malus domestica )
Mantilla Fuchsia ( Fuchsia )
Manuel Begonia ( Begonia Manuel )
Many Colours Begonia ( Begonia Many Colours )
Many Happy Returns Peony ( Paeonia lactiflora )
Many Happy Returns Rose ( Rosa )
Many Thanks Rose ( Rosa )
Manyusa Iris ( Iris germanica )
Manzano Yellow Corn ( Zea mays )
Maori Chief Mountain Flax ( Phormium cookianum )
Maori Ilam Hybrid Azalea ( Rhododendron )
Maori Maid Fuchsia ( Fuchsia )
Maori Pipes Fuchsia ( Fuchsia )
Maori Sunrise Mountain Flax ( Phormium cookianum )
Maoyuan Dahei Hong Camellia ( Camellia japonica )
Maphil Begonia ( Begonia Maphil )
Maple ( Acer tegmentosum )
Maple Leaf English Ivy ( Hedera helix )
Maple Leaf Tiarella ( Tiarella )
Maple Swamp ( Ilex opaca )
Maple of Fuji Begonia ( Begonia Maple of Fuji )
Mapleleaf Viburnum ( Viburnum acerifolium )
Mapleleaf White Mulberry ( Morus alba )
Maqux Xox Begonia ( Begonia Maqux Xox )
Maqux grex Begonia ( Begonia Maqux grex )
Marachal Le Clerc Rose ( Rosa )
Maranda Fuchsia ( Fuchsia )
Maranta Massangeana ( Maranta leuconeura )
Marathon P.J.M. Rhododendron ( Rhododendron )
Marble Faun Daylily ( Hemerocallis hybrida )
Marbles Capsicum Pepper ( Capsicum annuum )
Marbon Tomato ( Lycopersicon esculentum )
Marcel Moser Clematis ( Clematis )
Marcela ( Alternanthera flavescens )
Marcella Creeping Juniper ( Juniperus horizontalis )
Marcella Peony ( Paeonia lactiflora )
Marcellin Berthelot Fuchsia ( Fuchsia )
March Frost Juniper ( Juniperus scopulorum )
March Sunshine Daffodil ( Narcissus cyclamineus )
March of Time Tulip ( Tulipa )
Marchesa Boccella Rose ( Rosa )
Marchioness of Camden Fuchsia ( Fuchsia )
Marchioness of Cornwallis Fuchsia ( Fuchsia )
Marchioness of Lansdowne Catawba Rhododendron ( Rhododendron catawbiense )
Marco Jan Fuchsia ( Fuchsia )
Marco Polo Rose ( Rosa )
Marconi Mollis Hybrid Azalea ( Rhododendron )
Marconi Rossi Pepper ( Capsicum annuum )
Marconi Shasta Daisy ( Leucanthemum superbum )
Marcus Graham Fuchsia ( Fuchsia )
Mardi Fuchsia ( Fuchsia )
Mardi Gras Camellia ( Camellia japonica )
Mardi Gras Fuchsia ( Fuchsia )
Mardi Gras Southern Indian Hybrid Azalea ( Rhododendron )
Marechal Foch Common Lilac ( Syringa vulgaris )
Marechal Foch Grape ( Vitis )
Marechal Lannes Common Lilac ( Syringa vulgaris )
Marechal Niel Rose ( Rosa )
Marechal Niel Tulip ( Tulipa )
Marechal Vallant Peony ( Paeonia lactiflora )
Marechel Petain Hardy Water Lily ( Nymphaea )
Marfax Bush Bean ( Phaseolus vulgaris )
Margaret Aman Begonia ( Begonia Margaret Aman )
Margaret B. Herron Fuchsia ( Fuchsia )
Margaret Brown Fuchsia ( Fuchsia )
Margaret Chrysanthemum ( Chrysanthemum )
Margaret Davis Magnolia ( Magnolia grandiflora )
Margaret Davis Picotee Camellia ( Camellia japonica )
Margaret Fuschsia ( Fuchsia )
Margaret George Torch Azalea ( Rhododendron kaempferi )
Margaret Higdon Camellia ( Camellia japonica )
Margaret Hines Fuchsia ( Fuchsia )
Margaret Hunter Louisiana Beardless Iris ( Iris )
Margaret Jack Camellia ( Camellia japonica )
Margaret Jones Anemone Clematis ( Clematis montana )
Margaret Lawrence Camellia ( Camellia japonica )
Margaret Lough Peony ( Paeonia lactiflora )
Margaret Lyall Gladiolus ( Gladiolus )
Margaret Mary Waterlily ( Nymphaea )
Margaret Merril Rose ( Rosa )
Margaret Moran ( Ilex opaca )
Margaret Olive Knap Hill Azalea ( Rhododendron )
Margaret Piper Fuchsia ( Fuchsia )
Margaret Pride ( Ilex opaca )
Margaret Randig Waterlily ( Nymphaea )
Margaret Roberts Rose ( Rosa )
Margaret Rose ( Rosa )
Margaret Rose Amaryllis ( Hippeastrum johnsonii )
Margaret Rose Fuchsia ( Fuchsia )
Margaret Smith ( Ilex opaca )
Margaret Stevens Begonia ( Begonia Margaret Stevens )
Margaret Susan Fuchsia ( Fuchsia )
Margaret Swales Fuchsia ( Fuchsia )
Margaret Taylor Begonia ( Begonia Margaret Taylor )
Margaret Thatcher Rose ( Rosa )
Margaret Trueman Peony ( Paeonia lactiflora )
Margaret Turnbull Kohuhu ( Pittosporum tenuifolium )
Margaret Wood Clematis ( Clematis )
Margarete Hertrich Camellia ( Camellia japonica )
Margarete Japanese Anemone ( Anemone hybrida )
Margarete Klose Peony ( Paeonia lactiflora )
Margaretha Mollis Hybrid Azalea ( Rhododendron )
Margaretta Maidenhair Fern ( Adiantum raddianum )
Margarita Fuchsia ( Fuchsia )
Margaritacea Begonia ( Begonia Margaritacea )
Margaritae Begonia ( Begonia Margaritae )
Margery Blake Fuchsia ( Fuchsia )
Margery Fish ( Stachys byzantina )
Margery Fish Penstemon ( Penstemon )
Margharita Fuchsia ( Fuchsia )
Margie Camellia ( Camellia japonica )
Margie Fuchsia ( Fuchsia )
Margie Gable Hybrid Azalea ( Rhododendron )
Margie Sikkelee Begonia ( Begonia Margie Sikkelee )
Margil Apple ( Malus domestica )
Marginata ( Daphne odora )
Marginata Century Plant ( Agave americana )
Marginata Firedragon ( Acalypha wilkesiana )
Marginata Fuchsia ( Fuchsia )
Marginata Primrose ( Primula marginata )
Marginata Silver-Edge Elaeagnus ( Elaeagnus pungens )
Marginatum Harts Tongue Fern ( Phyllitis scolopendrium )
Margino-Maculata Ivy ( Hedera canariensis )
Marglobe Supreme Tomato ( Lycopersicon esculentum )
Marglobe Tomato ( Lycopersicon esculentum )
Margot Fonteyn Tulip ( Tulipa )
Margot Koster Clematis ( Clematis )
Margot Sneezeweed ( Helenium )
Marguerita Chrysanthemum ( Chrysanthemum )
Marguerite Daisy ( Leucanthemum vulgare )
Marguerite DeCola Begonia ( Begonia Marguerite DeCola )
Marguerite Gerard Peony ( Paeonia lactiflora )
Marguerite Gouilley Camellia ( Camellia japonica )
Marguerite Hilling Rose ( Rosa )
Marguerite Horn Begonia ( Begonia Marguerite Horn )
Marguerite Laplace Hardy Water Lily ( Nymphaea )
Marguerite Marilat Pear ( Pyrus communis )
Marguerite Tourje Camellia ( Camellia japonica )
Marhan Lily ( Lilium martagon album )
Maria Burkwood Deciduous Shrub ( Cytisus )
Maria Callas Rose ( Rosa )
Maria Derby Robin Hill Azalea ( Rhododendron hybrida )
Maria Elena Greenwood Hybrid Azalea ( Rhododendron )
Maria Flowering Crabapple ( Malus )
Mariafeld Pinot Noir Grape ( Vitis vinifera )
Marian Begonia ( Begonia Marian )
Marian Rutabaga ( Brassica napus )
Marian Strawn Waterlily ( Nymphaea )
Marianne ( Ilex opaca )
Marianne Greenwood Hybrid Azalea ( Rhododendron )
Maribeth Fuchsia ( Fuchsia )
Maricopa Corn ( Zea mays )
Marie Begonia ( Begonia Marie )
Marie Boisselot Clematis ( Clematis )
Marie Bracey Camellia ( Camellia japonica )
Marie Crousse Peony ( Paeonia lactiflora )
Marie Crousse Primrose ( Primula vulgaris )
Marie Elizabeth Peony ( Paeonia lactiflora )
Marie Exbury Azalea ( Rhododendron )
Marie Fischer Peony ( Paeonia lactiflora )
Marie Freesia ( Freesia )
Marie Goretti Gladiolus ( Gladiolus )
Marie Jacquin Peony ( Paeonia lactiflora )
Marie Lagrange Tropical Water Lily ( Nymphaea )
Marie Legraye Common Lilac ( Syringa vulgaris )
Marie Lemoine Peony ( Paeonia lactiflora )
Marie Louisa Fuchsia ( Fuchsia )
Marie Louise Belgian Indian Hybrid Azalea ( Rhododendron )
Marie Punselie Fuchsia ( Fuchsia )
Marie Robert Rose ( Rosa )
Marie Schnugg Dahlia ( Dahlia )
Marie Simon ceanothus ( Ceanothus )
Marie Verschaffelt Ghent Hybrid Azalea ( Rhododendron hybrida )
Marie de Blois Rose ( Rosa )
Mariesii Doublefile Viburnum ( Viburnum plicatum )
Mariesii Gold Tip Hinoki False Cypress ( Chamaecyparis obtusa )
Mariesii Hinoki False Cypress ( Chamaecyparis obtusa )
Mariesii Japanese Holly ( Ilex crenata )
Mariesii hydrangea ( Hydrangea macrophylla )
Marietta Fuchsia ( Fuchsia )
Marietta Sisson Peony ( Paeonia lactiflora )
Mariette Tulip ( Tulipa )
Mariette Vallee Peony ( Paeonia lactiflora )
Marijt Fuchsia ( Fuchsia )
Marilee North Tisbury Azalea ( Rhododendron hybrida )
Marilla Beauty Peony ( Paeonia lactiflora )
Marillyn Kobus Magnolia ( Magnolia kobus )
Marilyn Blais Begonia ( Begonia Marilyn Blais )
Marilyn Plantain Lily ( Hosta )
Marilyn Rose ( Rosa )
Marilyn Tulip ( Tulipa )
Marilyns Delight Apple ( Malus domestica )
Marin Glow Fuchsia ( Fuchsia )
Marin Jewel Fuchsia ( Fuchsia )
Marin Monarch Fuchsia ( Fuchsia )
Marina Exbury Azalea ( Rhododendron )
Marina Rose ( Rosa )
Marine Heliotrope ( Heliotropium aborescens )
Marinka Fuchsia ( Fuchsia )
Marion Harkness Rose ( Rosa )
Marion Louise Begonia ( Begonia Marion Louise )
Marion Merriman Knap Hill Azalea ( Rhododendron )
Marion Tomato ( Lycopersicon esculentum )
Marion Vaughn Daylily ( Hemerocallis hybrida )
Marionette Fuchsia ( Fuchsia )
Marionette Glenn Dale Azalea ( Rhododendron hybrida )
Marionette Knap Hill Azalea ( Rhododendron )
Mariposa Japanese Plum ( Prunus salicina )
Maripose Fuchsia ( Fuchsia )
Maritime Lily ( Lilium maritimum )
Marj Gossler Magnolia ( Magnolia denudata )
Marj T. Kurume Azalea ( Rhododendron )
Marja Fuchsia ( Fuchsia )
Marjike Koopman Rose ( Rosa )
Marjolein Tulip ( Tulipa )
Marjolett Tulip ( Tulipa marjolettii )
Marjon Wit Fuchsia ( Fuchsia )
Marjorie Ann Pericat Hybrid Azalea ( Rhododendron )
Marjorie Chase Rose ( Rosa )
Marjorie Fair Rose ( Rosa )
Marjorie Glenn Dale Azalea ( Rhododendron hybrida )
Marjorie Hebe ( Hebe )
Marjorie Hillgers Fuchsia ( Fuchsia )
Marjorie Magnificent Camellia ( Camellia japonica )
Marjorie May Rose ( Rosa )
Marjorie Moss Phlox ( Phlox subulata )
Marjorie Sibley Begonia ( Begonia Marjorie Sibley )
Marjory Fuchsia ( Fuchsia )
Mark African Violet ( Saintpaulia ionantha )
Mark Fenwick Nerine ( Nerine bowdenii )
Mark Hanna Hardy Water Lily ( Nymphaea )
Mark Hardwick Dahlia ( Dahlia )
Mark Jury Campbells Magnolia ( Magnolia campbellii )
Mark Primrose ( Primula )
Mark Pullen Waterlily ( Nymphaea )
Marketmore 86 Cucumber ( Cucumis sativus )
Marketmore 97 Cucumber ( Cucumis sativus )
Markhams Pink Clematis ( Clematis macropetala )
Marks Pear ( Pyrus communis )
Marlboro Fuchsia ( Fuchsia )
Marleen Heather ( Calluna vulgaris )
Marlena Rose ( Rosa )
Marlene Jones Chrysanthemum ( Chrysanthemum )
Marliac Bamboo ( Phyllostachys bambusoides )
Marliacea Albida Hardy Waterlily ( Nymphaea )
Marliacea Carnea Hardy Waterlily ( Nymphaea marliacea )
Marliacea Chromatella Hardy Waterlily ( Nymphaea marliacea )
Marlies Fuchsia ( Fuchsia )
Marlies Knap Hill Azalea ( Rhododendron )
Marmalade Bush ( Streptosolen jamesonii )
Marmalade Gloriosa Daisy ( Rudbeckia hirta )
Marmalade Rose ( Rosa )
Marmalade Skies Intermediate Bearded Iris ( Iris )
Marmande Tomato ( Lycopersicon esculentum )
Marmion Mollis Hybrid Azalea ( Rhododendron )
Marmo Maple ( Acer freemanii )
Marmora Glenn Dale Azalea ( Rhododendron hybrida )
Marmorata Foam flower ( Tiarella cordifolia )
Marmorata Kalanchoe ( Kalanchoe marmorata )
Marmorata Stone Plant ( Lithops marmorata )
Maroon Beauty Tropical Water Lily ( Nymphaea )
Marquette Tulip ( Tulipa )
Marquis C. Lagergren Peony ( Paeonia lactiflora )
Marry Me Rose ( Rosa )
Mars Begonia ( Begonia Mars )
Mars Grape ( Vitis )
Mars Onion ( Allium cepa )
Mars Ox Eye ( Heliopsis helianthoides )
Mars Tropical Water Lily ( Nymphaea )
Marsh ( Ilex opaca )
Marsh Blue Violet ( Viola obliqua )
Marsh Clematis ( Clematis crispa )
Marsh Mutation ( Ilex opaca )
Marsh fern ( Thelypteris palustris )
Marshall Bl|cher Mollis Hybrid Azalea ( Rhododendron )
Marshall Douglas Fir ( Pseudotsuga menziesii )
Marshall Haig Tulip ( Tulipa )
Marshall McIntosh Apple ( Malus domestica )
Marshall Oyama Flowering Crabapple ( Malus hybrida )
Marshall Salisbury Begonia ( Begonia Marshall Salisbury )
Marshall Strawberry ( Fragaria )
Marshalls Delight Bee Balm ( Monarda didyma )
Marshalls Seedless Green Ash ( Fraxinus pennsylvanica )
Marshas Pride Maidenhair Fern ( Adiantum tenerum )
Marshmallow Button Peony ( Paeonia lactiflora )
Marshmallow Puff Peony ( Paeonia lactiflora )
Marshmallow Tart Peony ( Paeonia lactiflora )
Marsun Peach ( Prunus persica )
Marta ( Ilex opaca )
Martell Fuchsia ( Fuchsia )
Martha Adams Daylily ( Hemerocallis hybrida )
Martha Bulloch Peony ( Paeonia lactiflora )
Martha Crabapple ( Malus )
Martha Floro Begonia ( Begonia Martha Floro )
Martha Franck Fuchsia ( Fuchsia )
Martha Fuchsia ( Fuchsia )
Martha Hermann Heather ( Calluna vulgaris )
Martha Hitchcock Glenn Dale Azalea ( Rhododendron hybrida )
Martha Marie Fuchsia ( Fuchsia )
Martha Pollock Peony ( Paeonia lactiflora )
Martha Reed Peony ( Paeonia lactiflora )
Martha Washington Asparagus ( Asparagus officinalis )
Martha Washington Daffodil ( Narcissus tazetta )
Martha Werle Fuchsia ( Fuchsia )
Martha-Dolgo Crabapple ( Malus )
Marthas Dream Camellia ( Camellia sasanqua )
Marthas Vineyard ( Ilex opaca )
Martian Boy Belgian Indica Azalea ( Rhododendron )
Martie Ilam Azalea ( Rhododendron )
Martin Stewart Torch Azalea ( Rhododendron kaempferi )
Martindale II Capsicuml Pepper ( Capsicum annuum )
Martindale IIl Capsicum Pepper ( Capsicum annuum )
Martini Rose ( Rosa )
Martins Carrot Capsicum Pepper ( Capsicum annuum )
Martins Magic Fuchsia ( Fuchsia )
Martins Midnight Fuchsia ( Fuchsia )
Martins Tea Tree ( Leptospermum scoparium )
Martins White Kurume Azalea ( Rhododendron )
Martinus Fuchsia ( Fuchsia )
Martoc Bean ( Vicia faba )
Martone Rose ( Rosa )
Marty Willy Fuchsia ( Fuchsia )
Maruba Tokaede Maple ( Acer buergerianum )
Marvee Greenwood Hybrid Azalea ( Rhododendron )
Marvel Fuchsia ( Fuchsia )
Marvel Glenn Dale Azalea ( Rhododendron hybrida )
Marvel Series Marigold ( Tagetes erecta )
Mary Alice Cox Camellia ( Camellia japonica )
Mary Allen Greenwood Hybrid Azalea ( Rhododendron )
Mary Ann Fuchsia ( Fuchsia )
Mary Ann Tulip ( Tulipa )
Mary Barnard Iris ( Iris unguicularis )
Mary Bell Glennan Camellia ( Camellia japonica )
Mary Belle Catawba Rhododendron ( Rhododendron catawbiense )
Mary Belle Frey Phlox ( Phlox stolonifera )
Mary Brand Peony ( Paeonia lactiflora )
Mary C. Ware Fuchsia ( Fuchsia )
Mary Christian Camellia ( Camellia )
Mary Claire Exbury Azalea ( Rhododendron )
Mary Clare Fuchsia ( Fuchsia )
Mary Copeland Daffodil ( Narcissus )
Mary Dalton Gable Hybrid Azalea ( Rhododendron )
Mary Di Barnardo Fuchsia ( Fuchsia )
Mary E. Nicholls Peony ( Paeonia lactiflora )
Mary Eddy Jones Peony ( Paeonia lactiflora )
Mary Ellen Flowering Dogwood ( Cornus florida )
Mary Ellen Fuchsia ( Fuchsia )
Mary Emily ( Ilex opaca )
Mary Fairclo Fuchsia ( Fuchsia )
Mary Frances Hawkins Gable Hybrid Azalea ( Rhododendron )
Mary Frances Hohman Kurume Azalea ( Rhododendron )
Mary Frances Tall Bearded Iris ( Iris )
Mary Fuchsia ( Fuchsia )
Mary Gable ( Ilex opaca )
Mary Gates Fuchsia ( Fuchsia )
Mary Guthrie Rose ( Rosa )
Mary Hart Climbing Rose ( Rosa )
Mary Helen Glenn Dale Azalea ( Rhododendron hybrida )
Mary Holman ( Ilex opaca )
Mary Holman Knap Hill Azalea ( Rhododendron )
Mary Horder Fuchsia ( Fuchsia )
Mary Jean Peace Lily ( Athurium africana )
Mary Jennie Dahlia ( Dahlia )
Mary Jo Dahlia ( Dahlia )
Mary Jo Legere Peony ( Paeonia lactiflora )
Mary Kay Rose ( Rosa )
Mary King Torch Azalea ( Rhododendron kaempferi )
Mary Lou Fuchsia ( Fuchsia )
Mary Lou Ilam Hybrid Azalea ( Rhododendron )
Mary Louise Fuchsia ( Fuchsia )
Mary Lyle Gentian ( Gentiana sino-ornata )
Mary Margaret Glenn Dale Azalea ( Rhododendron hybrida )
Mary Marie Ann Plantain Lily ( Hosta )
Mary Maslin Phlox ( Phlox nana )
Mary Meredith Torch Azalea ( Rhododendron kaempferi )
Mary Miloni Fuchsia ( Fuchsia )
Mary Mirgon waterlily ( Nymphaea )
Mary Nell Lusterleaf Holly ( Ilex latifolia )
Mary Nell Sibling Lusterleaf Holly ( Ilex latifolia )
Mary P. Turner ( Ilex opaca )
Mary Patricia Hardy Water Lily ( Nymphaea )
Mary Phoebe Taylor Camellia ( Camellia )
Mary Pope Rose ( Rosa )
Mary Poppins Knap Hill Azalea ( Rhododendron )
Mary Potter Flowering Crabapple ( Malus hybrida )
Mary Randall Iris ( Iris germanica )
Mary Rose ( Rosa )
Mary Rose Rose ( Rosa )
Mary Stoker Chrysanthemum ( Chrysanthemum )
Mary Stoker chrysanthemum ( Chrysanthemum rubellum )
Mary Sumner Rose ( Rosa )
Mary Thorne Fuchsia ( Fuchsia )
Mary Todd Daylily ( Hemerocallis hybrida )
Mary Torch Azalea ( Rhododendron kaempferi )
Mary Williams Campbells Magnolia ( Magnolia campbellii )
Mary-Jean Rose ( Rosa )
Maryann Gable Hybrid Azalea ( Rhododendron )
Marybeth Fuchsia ( Fuchsia )
Marydel Coast Azalea ( Rhododendron atlanticum )
Marygold Honeydew Melon ( Cucumis melo )
Maryland Dwarf ( Ilex opaca )
Maryland Pinkroot ( Spigeli marilandica )
Maryland Purple Kurume Azalea ( Rhododendron )
Maryland Umbrella Tree ( Magnolia macrophylla )
Marylene Rose ( Rosa )
Marys Gold Daylily ( Hemerocallis hybrida )
Marzano Lampadina Extra Tomato ( Lycopersicon esculentum )
Masaniello Hardy Water Lily ( Nymphaea )
Masayoshi Camellia ( Camellia japonica )
Mascara Begonia ( Begonia Mascara )
Mascara Lettuce ( Lactuca sativa )
Mascara Rose ( Rosa )
Mascot Glenn Dale Azalea ( Rhododendron hybrida )
Mascotte Rose ( Rosa )
Masdevallia Orchid ( Masdevallia veitchiana )
Maskerade Tulip ( Tulipa )
Masonic Broom White Fir ( Abies concolor )
Masonii False Cypress ( Chamaecyparis lawsoniana )
Masons Bronze Chrysanthemum ( Chrysanthemum )
Masquerade Fuchsia ( Fuchsia )
Masquerade Glenn Dale Azalea ( Rhododendron hybrida )
Masquerade Plantain lily ( Hosta sieboldii )
Masquerade Rose ( Rosa )
Massachusetts Arctostaphylos uva ursi ( Arctostaphylos uva ursi )
Massachusetts Kinnikinick ( Arctostaphylos uva-ursi )
Massasoit Kurume Azalea ( Rhododendron )
Massena Common Lilac ( Syringa vulgaris )
Master Chinese Arborvitae ( Thuja orientalis )
Master Michael Olearia ( Olearia scilloniensis )
Master Stroke Fuchsia ( Fuchsia )
Masterpiece Bush Bean ( Phaseolus vulgaris )
Masterpiece Fuchsia ( Fuchsia )
Masterpiece Glenn Dale Azalea ( Rhododendron hybrida )
Mastersii American Arborvitae ( Thuja occidentalis )
Matador Begonia ( Begonia Matador )
Matador Flowering Crabapple ( Malus )
Matador Kurume Azalea ( Rhododendron )
Matador Rose ( Rosa )
Matador Snap Bean ( Phaseolus vulgaris )
Matangi Rose ( Rosa )
Matapan Daffodil ( Narcissus )
Match Dahlia ( Dahlia )
Mathewsii Maidenhair Fern ( Adiantum raddianum )
Mathilda Mollis Hybrid Azalea ( Rhododendron )
Mathot Chinese Juniper ( Juniperus chinensis )
Mathotiana Alba Camellia ( Camellia japonica )
Mathotiana Camellia ( Camellia japonica )
Mathotiana Fimbriata Camellia ( Camellia japonica )
Mathotiana Supreme Camellia ( Camellia japonica )
Matild Begonia ( Begonia Matild )
Matilda Lewis Peony ( Paeonia lactiflora )
Matin Bells Coral Flower ( Heuchera brizoides )
Matins Glenn Dale Azalea ( Rhododendron hybrida )
Matlock Chrysanthemum ( Chrysanthemum )
Matriarch ( Ilex opaca )
Matsu Kagami Satsuki Azalea ( Rhododendron hybrida )
Matsu no Hikari Satsuki Azalea ( Rhododendron hybrida )
Matsu no Homare Satsuki Azalea ( Rhododendron hybrida )
Matsu no Mei Satsuki Azalea ( Rhododendron hybrida )
Matsu no Tsukasa Satsuki Azalea ( Rhododendron hybrida )
Matsu-No-Hikan Satsuki Azalea ( Rhododendron hybrida )
Matsunami Satsuki Azalea ( Rhododendron hybrida )
Matsurabara Red Japanese Apricot ( Prunus mume )
Matsushima Satsuki Azalea ( Rhododendron hybrida )
Matthew Yates Holly ( Ilex cornuta )
Matthews Canadian Hemlock ( Tsuga canadensis )
Mattie Gates Iris ( Iris germanica )
Mattie Lafuze Peony ( Paeonia lactiflora )
Mattie O Reilly Camellia ( Camellia japonica )
Mattie R Camellia ( Camellia japonica )
Maud Notcutt Common Lilac ( Syringa vulgaris )
Maudiae Coloratum Orchid ( Paphiopedilum )
Maudiae Orchid ( Paphiopedilum )
Maui Buttercups Plantain Lily ( Hosta )
Maui Moonlight Intermediate Bearded Iris ( Iris )
Maui Peach Bovee Knap Hill Azalea ( Rhododendron )
Maui Sunset Bovee Knap Hill Azalea ( Rhododendron )
Maui Surf Border Bearded Iris ( Iris )
Mauna Loa Daylily ( Hemerocallis hybrida )
Mauna Loa Knap Hill Azalea ( Rhododendron )
Mauna Loa Spathiphyllum ( Spathiphyllum wallisii )
Maureece ( Ilex opaca )
Maureen Clematis ( Clematis )
Maureen Tulip ( Tulipa )
Maurice Barres Common Lilac ( Syringa vulgaris )
Maurice Gibbs Penstemon ( Penstemon )
Maurice Laydeker Hardy Water Lily ( Nymphaea )
Maurice River ( Ilex opaca )
Mauritania Geranium ( Pelargonium )
Mauritiana Tulip ( Tulipa mauritiana )
Mauve Beauty Fuchsia ( Fuchsia )
Mauve Beauty Geranium ( Pelargonium )
Mauve Beauty Kurume Azalea ( Rhododendron )
Mauve Beauty Poppy ( Eschscholzia californica )
Mauve Clusters Fairy Fan-Flower ( Scaevola aemula )
Mauve Mist Callistemon ( Callistemon macropunctatus )
Mauve Pink Knap Hill Azalea ( Rhododendron )
Mauve Poincare Fuchsia ( Fuchsia )
Mauve Queen Lupine ( Lupinus arboreus )
Mauve Salter Bevis Geranium ( Pelargonium )
Mauvette Fuchsia ( Fuchsia )
Mauvii ( Nymphaea flavovirens )
Mavis Glenn Dale Azalea ( Rhododendron hybrida )
Mavis Knap Hill Azalea ( Rhododendron )
Mavoureen Glenn Dale Azalea ( Rhododendron hybrida )
Max Frei Geranium ( Geranium sanguineum )
Max Havelaar Gladiolus ( Gladiolus )
Max Levering Coleus ( Solenostemon scutellarioides )
Max Petit G