Malva moschata
Musk-mallow
Malva setigera
Rough Marsh-mallow
Matricaria chamomilla
Scented Mayweed
Matricaria discoidea
Pineappleweed
Medicago arabica
Spotted Medick
Medicago lupulina
Black Medick
Medinilla magnifica
Rose Grape
Megaskepasma erythrochlamys
Brazilian Red-cloak
Melaleuca leucadendra
Cajaput-tree
Melampodium divaricatum
Gold Medallion
Melampyrum arvense
Field Cow-wheat
Melampyrum pratense
Common Cow-wheat
Melanolepis multiglandulosa
Alim
Melastoma malabathricum
Malabar Melastome
Melica nutans
Mountain Melick
Melica uniflora
Wood Melick
Melilotus albus
White Melilot
Melilotus altissimus
Tall Melilot
Melilotus officinalis
Ribbed Melilot
Melinis repens
Sourgrass
Melittis melissophyllum
Bastard Balm
Mentha aquatica
Water Mint
Mentha arvensis
Corn Mint
Mentha x piperita
Peppermint
Menyanthes trifoliata
Bogbean
Mercurialis annua
Annual Mercury
Mercurialis perennis
Dog's Mercury
Meum athamanticum
Spignel
Miscanthus sinensis
Chinese Silver Grass
Mitracarpus hirtus
Tropical Girdlepod
Moehringia trinervia
Three-nerved Sandwort
Molinia caerulea
Purple Moor-grass
Montia fontana
Blinks
Mussaenda erythrophylla
Ashanti Blood
Mussaenda frondosa
Dhobi Tree
Mussaenda philippica
Agboy
Myosotis alpestris
Alpine Forget-me-not
Myosotis discolor
Changing Forget-me-not
Myosotis laxa
Tufted Forget-me-not
Myosotis ramosissima
Early Forget-me-not
Myosotis scorpioides
Water Forget-me-not
Myosotis stricta
Myriophyllum alterniflorum
Alternate Water-milfoil
Myriophyllum aquaticum
Parrot's-feather
Myriophyllum spicatum
Spiked Water-milfoil
Myrrhis odorata
Sweet Cicely
Narcissus nobilis
Large-flowered Daffodil
Narcissus pseudonarcissus
Nardus stricta
Mat-grass
Narthecium ossifragum
Bog Asphodel
Neottia cordata
Lesser Twayblade
Neottia nidus-avis
Bird's-nest Orchid
Neottia ovata
Common Twayblade
Nepenthes spp.
Pitcherplant
Neustanthus phaseoloides
Tropical Kudzu
Nicandra physalodes
Apple-of-Peru
Nonea lutea
Yellow Nonea
Nuphar lutea
Yellow Water-lily
Ocinum americanum
American Basil
Odontites vernus
Red Bartsia
Oenanthe crocata
Hemlock Water-dropwort
Oenanthe fistulosa
Tubular Water-dropwort
Oenanthe lachenalii
Parsley Water-dropwort
Oenanthe silaifolia
Narrow-leaved Water-dropwort
Oenothera biennis
Common Evening-primrose
Olearia macrodonta
New Zealand Holly
Ononis reclinata
Small Restharrow
Ononis repens
Common Restharrow
Ophioglossum azoricum
Small Adder's-tongue
Ophioglossum vulgatum
Adder's-tongue