Quaking grass
Queen Anne's Lace
Rabbit orchid
Rabbit's ears
Radiata pine
Rape
Raspwort
Rat's tail fescue
Rayless mayweed
Red beaks
Red clover
Red fescue
Red hot pokers
Red-leg grass
Reed sweet grass
Ribwort
Riceflower
Rice grass
Risdon peppermint
Rock orchid
Rock rose
Rocket
Roman chamomile
Rope twitch
Rose
Rose of Sharon
Rough bedstraw
Rough dog's tail
Rough clover
Round-leaved pigface
Running marsh flower
Running postman
Rush
Rush lily
Ryecorn
Ryegrass