Lemna trisulca
Ivy-leaved Duckweed
Leontodon hispidus
Rough Hawkbit
Leonurus cardiaca
Motherwort
Lepidium didymum
Lesser Swine-cress
Lepidium draba
Hoary Cress
Lepidium heterophyllum
Smith's Pepperwort
Lepidium latifolium
Dittander
Lepidium ruderale
Narrow-leaved Pepperwort
Leptospermum scoparium
Broom Tea-tree
Leucanthemum vulgare
Oxeye Daisy
Leucojum aestivum
Summer Snowflake
Leycesteria formosa
Himalayan Honeysuckle
Licuala peltata
Fan Palm
Ligustrum vulgare
Wild Privet
Lilium pyrenaicum
Pyrenean Lily
Limbarda crithmoides
Golden-samphire
Limonium binervosum agg.
Rock Sea-lavender (Newborough)
Limosella aquatica
Mudwort
Linaria repens
Pale Toadflax
Linaria supina
Prostrate Toadflax
Linaria vulgaris
Common Toadflax
Linum catharticum
Fairy Flax
Linum usitatissimum
Liparis loeselii
Fen Orchid
Liriodendron tulipifera
Tulip-tree
Littorella uniflora
Shoreweed
Lobaria pulmonaria
Oak Lungwort
Lobelia dortmanna
Water Lobelia
Lobelia urens
Heath Lobelia
Logfia minima
Small Cudweed
Lonicera periclymenum
Honeysuckle
Lotus corniculatus
Common Bird's-foot-trefoil
Ludwigia palustris
Hampshire-purslane
Lunaria annua
Honesty
Luzula campestris
Field 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 maritima
Sea-milkwort
Lysimachia nemorum
Yellow Pimpernel
Lysimachia nummularia
Creeping-Jenny
Lysimachia tenella
Bog Pimpernel
Lythrum portula
Water-purslane
Lythrum salicaria
Purple-loosestrife
Magnolia campbellii
Campbell's Magnolia
Malus domestica
Apple
Malus sylvestris
Crab Apple
Malva arborea
Tree-mallow
Malva moschata
Musk-mallow
Malva multiflora
Smaller Tree-mallow
Malva neglecta
Dwarf Mallow
Malva sylvestris
Common Mallow
Manikara zapota
Sapodilla
Matricaria chamomilla
Scented Mayweed
Medicago arabica
Spotted Medick
Medicago littoralis
Shore Medick
Medicago polymorpha
Toothed Medick
Melampyrum pratense
Common Cow-wheat
Melampyrum sylvaticum
Small Cow-wheat
Melica nutans
Mountain Melick
Melica uniflora
Wood Melick
Melilotus albus
White Melilot
Melilotus altissimus
Tall Melilot
Melilotus officinalis
Ribbed Melilot
Mentha aquatica
Water Mint
Mentha arvensis
Corn Mint
Mentha pulegium
Pennyroyal
Mentha x piperita
Peppermint