Quercus cerris
Turkey Oak
Quercus robur
Pedunculate Oak
Ranunculus repens
Creeping Buttercup
Ranunculus sardous
Hairy Buttercup
Reseda lutea
Wild Mignonette
Reseda luteola
Weld
Reynoutria japonica
Japanese Knotweed
Rhamnus cathartica
Buckthorn
Rhinanthus angustifolius
Greater Yellow-rattle
Ribes nigrum
Black Currant
Ribes uva-crispa
Gooseberry
Robinia pseudoacacia
False-acacia
Rosa arvensis
Field-rose
Rosa caesia
Hairy Dog-rose
Rosa canina
Dog-rose
Rosa canina agg
Dog-rose
Rosa rubiginosa
Sweet-briar
Rosa rugosa
Japanese Rose
Rosa sherardii
Sherard's Downy-rose
Rosa stylosa
Short-styled Field-rose
Rubus caesius
Dewberry
Rubus fruticosus agg.
Blackberry
Rubus spectabilis
Salmonberry
Rumex crispus
Curled Dock
Rumex obtusifolius
Broad-leaved Dock
Rumex pulcher
Fiddle Dock
Ruscus aculeatus
Butcher's-broom
Salvia pratensis
Meadow Clary
Salvia verbenaca
Wild Clary
Sambucus ebulus
Dwarf Elder
Sambucus nigra
Elder
Saponaria officinalis
Soapwort
Scrophularia nodosa
Common Figwort
Secale cereale
Rye
Sedum album
White Stonecrop
Senecio cambrensis
Welsh Groundsel
Senecio squalidus
Oxford Ragwort
Senecio viscosus
Sticky Groundsel
Senecio vulgaris
Groundsel
Setaria viridis
Green Bristle-grass
Sibthorpia europaea
Cornish Moneywort
Silene gallica
Small-flowered Catchfly
Silene latifolia
White Campion
Silene vulgaris
Bladder Campion
Silybum marianum
Milk Thistle
Sinapis alba
White Mustard
Sinapis arvensis
Charlock
Sison amomum
Stone Parsley
Sisymbrium officinale
Hedge Mustard
Smyrnium olusatrum
Alexanders
Solanum dulcamara
Bittersweet
Soleirolia soleirolii
Mind-your-own-business
Solidago canadensis
Canadian Goldenrod
Solidago gigantea
Early Goldenrod
Sonchus asper
Prickly Sow-thistle
Sonchus oleraceus
Smooth Sow-thistle
Spergularia marina
Lesser Sea-spurrey
Stachys alpina
Limestone Woundwort
Stachys arvensis
Field Woundwort
Stachys germanica
Downy Woundwort
Stachys sylvatica
Hedge Woundwort
Stellaria media
Common Chickweed
Stellaria neglecta
Greater Chickweed
Symphoricarpos albus
Snowberry
Symphyotrichum lanceolatum
Narrow-leaved Michaelmas-daisy
Symphytum orientale
White Comfrey
Symphytum tuberosum
Tuberous Comfrey
Symphytum x uplandicum
Russian Comfrey
Tamus communis
Black Bryony
Tanacetum parthenium
Feverfew