Lepidium heterophyllum
Smith's Pepperwort
Lepidium latifolium
Dittander
Lepidium ruderale
Narrow-leaved Pepperwort
Leptospermum scoparium
Broom Tea-tree
Leycesteria formosa
Himalayan Honeysuckle
Leymus arenarius
Lyme-grass
Ligustrum vulgare
Wild Privet
Lilium pyrenaicum
Pyrenean Lily
Limonium binervosum agg.
Rock Sea-lavender (Tywyn Trewan)
Limonium sinuatum
Wavyleaf Sea Lavender
Linaria repens
Pale Toadflax
Linaria supina
Prostrate Toadflax
Linaria vulgaris
Common Toadflax
Linum catharticum
Fairy Flax
Linum usitatissimum
Liparis loeselii
Fen Orchid
Lithodora diffusa
Purple Gromwell 'Heavenly Blue'
Lithospermum officinale
Common Gromwell
Littorella uniflora
Shoreweed
Lobelia dortmanna
Water Lobelia
Logfia minima
Small Cudweed
Lolium perenne
Perennial Rye-grass
Lonicera periclymenum
Honeysuckle
Lonicera xylosteum
Fly Honeysuckle
Lotus corniculatus
Common Bird's-foot-trefoil
Ludwigia palustris
Hampshire-purslane
Lunaria annua
Honesty
Lupinus polyphyllus
Garden Lupin
Luzula campestris
Field Wood-rush
Luzula nivea
Snow-white Wood-rush
Luzula pilosa
Hairy Wood-rush
Luzula sylvatica
Great Wood-rush
Lycopodium clavatum
Stag's-horn Clubmoss
Lycopus europaeus
Gypsywort
Lysichiton americanus
American Skunk-cabbage
Lysimachia arvensis
Scarlet Pimpernel
Lysimachia punctata
Dotted Loosestrife
Lysimachia vulgaris
Yellow Loosestrife
Lythrum salicaria
Purple-loosestrife
Macroptilium lathyroides
Phasey Bean
Maianthemum racemosum
Treacleberry
Malus domestica
Apple
Malus sylvestris
Apple
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