Juglans regia
Walnut
Juncus acutiflorus
Sharp-flowered Rush
Juncus articulatus
Jointed Rush
Juncus compressus
Round-fruited Rush
Juncus effusus
Soft-rush
Juncus inflexus
Hard Rush
Juncus squarrosus
Heath Rush
Juncus subnodulosus
Blunt-flowered Rush
Juncus tenuis
Slender Rush
Juniperus communis
Juniper
Kickxia elatine
Sharp-leaved Fluellen
Knautia arvensis
Field Scabious
Lactuca saligna
Least Lettuce
Lamium album
White Dead-nettle
Lamium amplexicaule
Henbit Dead-nettle
Lamium hybridum
Cut-leaved Dead-nettle
Lamium maculatum
Spotted Dead-nettle
Lamium purpureum
Red Dead-nettle
Lapsana communis
Nipplewort
Larix decidua
European Larch
Larix x marschlinsii
Hybrid Larch
Lathraea clandestina
Purple Toothwort
Lathyrus aphaca
Yellow Vetchling
Lathyrus japonicus
Sea Pea
Lathyrus latifolius
Broad-leaved Everlasting-pea
Lathyrus linifolius
Bitter-vetch
Lathyrus odoratus
Sweet Pea
Lathyrus oleraceus
Garden Pea
Lathyrus pratensis
Meadow Vetchling
Lathyrus sylvestris
Narrow-leaved Everlasting-pea
Laurus nobilis
Bay
Lemna trisulca
Ivy-leaved Duckweed
Leonurus cardiaca
Motherwort
Lepidium didymum
Lesser Swine-cress
Lepidium latifolium
Dittander
Lepidium ruderale
Narrow-leaved Pepperwort
Lepidium sativum
Garden Cress
Leucanthemum vulgare
Oxeye Daisy
Limonium binervosum agg.
Rock Sea-lavender (Newborough)
Limonium vulgare
Common Sea-lavender
Limosella aquatica
Mudwort
Linaria arenaria
Sand Toadflax
Linaria purpurea
Purple Toadflax
Linaria repens
Pale Toadflax
Linum catharticum
Fairy Flax
Lobelia urens
Heath Lobelia
Lolium perenne
Perennial Rye-grass
Lonicera xylosteum
Fly Honeysuckle
Lotus pedunculatus
Greater Bird's-foot-trefoil
Lotus subbiflorus
Hairy Bird's-foot-trefoil
Lotus tenuis
Narrow-leaved Bird's-foot-trefoil
Ludwigia palustris
Hampshire-purslane
Lunaria annua
Honesty
Luzula nivea
Snow-white Wood-rush
Lycopodium clavatum
Stag's-horn Clubmoss
Lycopsis arvensis
Bugloss
Lycopus europaeus
Gypsywort
Lysimachia arvensis
Scarlet Pimpernel
Lysimachia foemina
Blue Pimpernel
Lysimachia nemorum
Yellow Pimpernel
Lysimachia nummularia
Creeping-Jenny
Lysimachia tenella
Bog Pimpernel
Lysimachia vulgaris
Yellow Loosestrife
Lythrum portula
Water-purslane
Magnolia campbellii
Campbell's Magnolia
Maianthemum racemosum
Treacleberry
Malva arborea
Tree-mallow
Malva moschata
Musk-mallow
Malva multiflora
Smaller Tree-mallow
Malva sylvestris
Common Mallow