Polygonum arenastrum
Equal-leaved Knotgrass
Polygonum aviculare
Knotgrass
Polygonum oxyspermum
Ray's Knotgrass
Reynoutria japonica
Japanese Knotweed
Rheum officinale
Tibetan Rhubarb
Rhipsalis salicornioides
Spice Cactus
Rumex acetosa
Common Sorrel
Rumex acetosella
Sheep's Sorrel
Rumex confertus
Russian Dock
Rumex crispus
Curled Dock
Rumex cristatus
Greek Dock
Rumex hydrolapathum
Water Dock
Rumex maritimus
Golden Dock
Rumex obtusifolius
Broad-leaved Dock
Rumex palustris
Marsh Dock
Rumex pulcher
Fiddle Dock
Rumex rupestris
Shore Dock
Rumex sanguineus
Wood Dock
Rumex scutatus
French Sorrel
Sabulina verna
Spring Sandwort
Sagina apetala
Annual Pearlwort
Sagina filicaulis
Slender Pearlwort
Sagina nodosa
Knotted Pearlwort
Sagina procumbens
Procumbent Pearlwort