Mercurialis annua
Annual Mercury
Mercurialis perennis
Dog's Mercury
Mesosphaerum suaveolens
Chia
Meum athamanticum
Spignel
Micranthes stellaris
Starry Saxifrage
Mikania micrantha
Bitter Vine
Mimosa diplotricha
Giant Sensitive Plant
Mimosa pudica
Sensitive Plant
Minuartia recurva
Recurved Sandwort
Mirabilis jalapa
Marvel of Peru
Misopates calycinum
Pale Weasel's-snout
Misopates orontium
Weasel's-snout
Mitracarpus hirtus
Tropical Girdlepod
Moehringia trinervia
Three-nerved Sandwort
Moenchia erecta
Upright Chickweed
Momordica charantia
Bitter Gourd
Montia fontana
Blinks
Morus nigra
Black Mulberry
Muntingia calabura
Cotton Candy Berry
Murraya paniculata
Orange Jasmine
Mussaenda erythrophylla
Ashanti Blood
Mussaenda philippica
Agboy
Mycelis muralis
Wall Lettuce
Myosotis alpestris
Alpine Forget-me-not
Myosotis arvensis
Field 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 secunda
Creeping Forget-me-not
Myosotis stricta
Myosotis sylvatica
Wood Forget-me-not
Myosurus minimus
Mousetail
Myrica gale
Bog-myrtle
Myriophyllum alterniflorum
Alternate Water-milfoil
Myriophyllum aquaticum
Parrot's-feather
Myriophyllum spicatum
Spiked Water-milfoil
Myrrhis odorata
Sweet Cicely
Nasturtium officinale
Water-cress
Nepenthes spp.
Pitcherplant
Nepenthes truncata
Nepeta x faassenii
Garden Cat-mint
Nerium oleander
Oleander
Neustanthus phaseoloides
Tropical Kudzu
Nicandra physalodes
Apple-of-Peru
Noccaea caerulescens
Alpine Penny-cress
Nonea lutea
Yellow Nonea
Nothofagus alpina
Rauli
Nymphoides peltata
Fringed Water-lily
Ochna serrulata
Small-leaved Plane
Ocimum americanum
American Basil
Ocinum americanum
American Basil
Odontites vernus
Red Bartsia
Oenanthe aquatica
Fine-leaved Water-dropwort
Oenanthe crocata
Hemlock Water-dropwort
Oenanthe fistulosa
Tubular Water-dropwort
Oenanthe lachenalii
Parsley Water-dropwort
Oenanthe pimpinelloides
Corky-fruited Water-dropwort
Oenanthe silaifolia
Narrow-leaved Water-dropwort
Oenothera biennis
Small-flowered Evening-primrose
Oenothera glazioviana
Large-flowered Evening-primrose
Oenothera stricta
Fragrant Evening-primrose
Olearia macrodonta
New Zealand Holly
Onobrychis viciifolia
Sainfoin
Ononis arvensis
Ononis reclinata
Small Restharrow
Ononis repens
Common Restharrow
Ononis spinosa
Spiny Restharrow
Opuntia cochenillifera
Cochineal Cactus
Opuntia ficus-indica
Prickly Pear