Mealberry (spp.) Mealberry 'Massachusetts'
Mealberry 'Microphylla' Mealberry 'Point Reyes'
Mealberry 'Radiant' Mealie (spp.)
Mealie 'Bars & Stripes' Mealie 'Indian Summer'
Mealie 'King Arthur' Mealie 'Tiger Cub'
Mealie Variegated Mealy Blue Sage (spp.)
Mealy Blue Sage 'Argent' Mealy Blue Sage 'Signum'
Mealy Blue Sage 'Strata' Mealy Blue Sage 'Victoria Blue'
Mealycup Sage (spp.) Mealycup Sage 'Argent'
Mealycup Sage 'Signum' Mealycup Sage 'Strata'
Mealycup Sage 'Victoria Blue' Measles Plant (spp.)
Measles Plant 'Confetti Red' 'Meczek' Flowering Ash
'Medallion' Gold Medallion Flower Medicinal Aloe
Medinilla 'Medio' American Aloe
'Mediopicta' Mauritius Hemp Mediterranean Fan Palm
Mediterranean Hackberry 'Mediterranean Pink' Darley Dale Heath
Mediterranean Sea Holly Mediterranean Spurge (spp.)
Mediterranean Spurge 'Portuguese Velvet' Mediterranean Spurge: characias wulfenii
'Mediterranean White' Darley Dale Heath 'Medora' Colorado Red Cedar
'Meehannii' Rose of Sharon 'Meeting' Daffodil
Meeting Houses (spp.) Meeting Houses 'Corbett'
'Meijishi' Japanese Maple 'Meipeporia (Osos Easy® Double Red)' Rose
Melaleuca Melaleuca, Pink
Melaleuca: nesophila, Pink 'Melody' Ornamental Chili Pepper
'Melody Pink' Carnation: Dianthus 'Melody' Spinach
'Melrose' Rose of Sharon 'Memmingeri' Common Horsechestnut
'Memorial' American Boxwood Memorial Rose
Memorial Rose: wichuraiana 'Mendenhall' Moth Orchid
'Mendenhall' Orchid: Brassolaeliocattleya Mendocino Shore Pine
Mentor Barberry Menzies' Hebe
'Meriana' Cherry 'Merleau' Blue Salvia: superbahybrid
'Merlin Blue Morn' Garden Petunia 'Merritt Supreme' Bigleaf Hydrangea
Merrybells Merrybells: sessilifolia
Mesa Oak 'Mesa Verde' Ice Plant
Mescal Mescal Bean
Mescal Ceniza Mescal, Pelon
Mescal: parryi conesii Meserve Holly (spp.)
Meserve Holly 'Blue Prince®' Meserve Holly 'Blue Princess®'
Meserve Holly 'Castle Spire®' Meserve Holly 'Castle Wall™'
Meserve Holly 'Honey Maid™' Mespel, Wild
Mesquite, Argentine (spp.) Mesquite, Argentine 'Colorado'
Mesquite, Arizona Mesquite, Chilean
Mesquite, Honey Mesquite, Velvet
Mesquite: glandulosa torreyana, Honey Messmate
Messmate Stringybark 'Metallica' Carpet Bugle
'Metallica Crispa' Pyramidal Bugleweed 'Metallica' Elephant's Ear
'Meteor' Mountain Laurel Metrosideros