Rhinanthus angustifolius
Greater Yellow-rattle
Rhinanthus minor
Yellow-rattle
Rhizocarpon geographicum
Map Lichen
Rhodiola rosea
Roseroot
Rhododendron ponticum
Rhododendron
Rhynchospora alba
White Beak-sedge
Ribes rubrum
Red Currant
Ribes sanguineum
Flowering Currant
Ribes uva-crispa
Gooseberry
Romulea columnae
Sand Crocus
Rosa arvensis
Field-rose
Rosa canina
Dog-rose
Rosa canina agg
Dog-rose
Rosa sherardii
Sherard's Downy-rose
Rosa spinosissima
Burnet Rose
Rubia peregrina
Wild Madder
Rubus ariconiensis
Rubus biloensis
Rubus fraxinifolius
Mountain Raspberry
Rubus fruticosus agg.
Blackberry
Rubus iscanus
Rubus ordovicum
Rubus spectabilis
Salmonberry
Rubus troiensis
Rubus tuberculatus
Rubus ulmifolius
Elmleaf Blackberry
Rubus vestitus
Rumex acetosella
Sheep's Sorrel
Rumex crispus
Curled Dock
Rumex maritimus
Golden Dock
Rumex obtusifolius
Broad-leaved Dock
Rumex rupestris
Shore Dock
Ruscus aculeatus
Butcher's-broom
Russula sp.
Sagina nodosa
Knotted Pearlwort
Sagina procumbens
Procumbent Pearlwort
Salicornia dolichostachya
Long-spiked Glasswort
Salicornia europaea
Common Glasswort
Salicornia fragilis
Yellow Glasswort
Salix cinerea
Grey Willow
Salix herbacea
Dwarf Willow
Salix pentandra
Bay Willow
Salix repens
Creeping Willow
Salix viminalis
Osier
Salix x fragilis
Crack-willow
Salvia elegans
Pineapple sage
Salvia farinacea
Mealy Sage
Salvia involucrata
Rosy-leaf sage
Salvia pratensis
Meadow Clary
Salvia splendens
Bonfire Salvia
Salvia verbenaca
Wild Clary
Samanea saman
Raintree
Sambucus ebulus
Dwarf Elder
Sambucus nigra
Elder
Samolus valerandi
Brookweed
Sanguisorba officinalis
Great Burnet
Sanicula europaea
Sanicle
Sarcoscypha austriaca
Scarlet Cup
Saxifraga aizoides
Yellow Saxifrage
Saxifraga granulata
Meadow Saxifrage
Saxifraga hypnoides
Mossy Saxifrage
Saxifraga oppositifolia
Purple Saxifrage
Saxifraga rosacea
Irish Saxifrage
Saxifraga spathularis
St Patrick's-cabbage
Saxifraga tridactylites
Rue-leaved Saxifrage
Scabiosa columbaria
Small Scabious
Schaueria calytricha
Golden Plume
Schoenoplectus tabernaemontani
Grey Club-rush
Schoenus nigricans
Black Bog-rush
Scilla autumnalis
Autumn Squill