'Miss Elie' Summer Phlox 'Miss Jessop' Rosemary
'Miss Kelly' Summer Phlox 'Miss Manners' Obedient Plant
'Miss Mary Russel' Globeflower Miss Willmott's Ghost (spp.)
Missouri Black-eyed Susan Missouri Coneflower
Missouri Evening Primrose (spp.) Missouri Evening Primrose 'Silver Wings'
Missouri Violet 'Missouri' Waterlily
Mist Flower Mist Flower, Blue
Mist Flower, West Texas Mistflower, Gregg's
Mistflower, Palm-leaf Mitrewort, False (spp.)
Mitrewort: Tiarella , False 'Adagio' Mitrewort: Tiarella , False 'Black Velvet'
Mitrewort: Tiarella , False 'Crow Feather' Mitrewort: Tiarella , False 'Cygnet'
Mitrewort: Tiarella , False 'Freckles' Mitrewort: Tiarella , False 'Heronswood Mist'
Mitrewort: Tiarella , False 'Iron Butterfly' Mitrewort: Tiarella , False 'Lacquer Leaf'
Mitrewort: Tiarella , False 'Lavid of Skye' Mitrewort: Tiarella , False 'Mint Chocolate'
Mitrewort: Tiarella , False 'Pink Brushes' Mitrewort: Tiarella , False 'Pink Pearls'
Mitrewort: Tiarella , False 'Pinwheel' Mitrewort: Tiarella , False 'Skeleton Key'
Mitrewort: Tiarella , False 'Spring Symphony' Mitrewort: Tiarella , False 'Tiger Stripe'
Miyagino Hagi (spp.) Miyagino Hagi 'Gilbraltar'
'Miyazaki' Hairy Toad Lily 'Mme Le Coultre' Hybrid Clematis
Moccasin Flower Moccasin Flower, Yellow
'Moerheim Beauty' Common Sneezeweed: Helenium Mojave Yucca
Molded Wax Agave 'Red Edge' Mole Plant (spp.)
Mole Plant 'Yokoi's White' 'Molimba® Pink' Marguerite Daisy
Molly The Witch 'Molten Lava™' Oxalis: vulcanicola
'Momo Botan' Sacred Lotus Monarch of the East
Monardella Monastery Bells (spp.)
Mondo Grass 'Arabicus' Mondo Grass (spp.)
Mondo Grass Dwarf 'Monet Moment' Cardinal Flower
Money Plant (spp.) Money Plant 'Honesty'
Money Tree Variegated Moneywort (spp.)
Moneywort 'Honesty' Moneywort: nummularia (spp.)
Moneywort: nummularia Golden Mongolian Stonecrop
'Monkey' Daylily Monkey Faced Pansy
Monkey Flower Monkey Flower 'Yellow Velvet'
Monkey Flower, Allegheny Monkey Flower, Bush
Monkey Flower, Common Monkey Flower, Cutpetal Bush
Monkey Flower, Scarlet Monkey Flower, Sea Spring
Monkey Flower, Sticky Monkey Flower: bifidus, Sticky
Monkey Grass (spp.) Monkey Grass Dwarf
Monkeyflower, Seep Monk's Hood (spp.)
Monk's Hood, Blue Monk's Hood, Garden (spp.)
Monk's Hood, Garden 'Bi-color' Monk's Hood, Garden White
Monk's Hood: carmichaelii (spp.) Monk's Hood: myriostigma
Monk's Hood: uncinatum Monkshood, Bicolor (spp.)
'Monroe White' Lilyturf 'Monstrosus' Column Cactus