41 Polygonaceae
- Casual: Fagopyrum (F. esculentum, F. tataricum), Fallopia (F. convolvulus).
Notes: Haraldson (1978), Ronse Decraene and Akeroyd (1988), and Karlsson (2000a) summarized the taxonomic options concerning Polygonum s. lat.. These authors stated Polygonum s. lat. to include two clearly different groups of genera belonging to different tribes: tribus Persicarieae with, e.g., Aconogonon, Koenigia, Persicaria, and Bistorta; and tribus Polygoneae with, e.g., Polygonum s. str. and Fallopia. They considered these two tribes to be as distant from each other as both are from the third tribe of the family, Rumiceae with, e.g., Rumex, Oxyria, and Rheum. Sanchez and Kron (2008) and Kim and Donoghue (2008) reached similar conclusions based on several molecular markers.
Lower Taxa (Show all)
- Polygonum
- The Polygonum aviculare aggregate P. aviculare, P. boreale, P. microspermum, P. neglectum
- Polygonum aviculare
- Polygonum boreale
- Polygonum neglectum
- Polygonum microspermum
- Polygonum humifusum
- Polygonum hudsonianum
- Polygonum raii
- Bistorta
- Bistorta vivipara
- The Bistorta officinalis aggregate B. elliptica, B. plumosa
- Bistorta elliptica
- Bistorta plumosa
- Persicaria
- Koenigia
- Aconogonon
- Oxyria
- Rumex
- Rumex longifolius
- Rumex crispus
- Rumex confertus
- The Rumex aquaticus-arcticus aggregate R. aquaticus, R. arcticus, R. occidentalis
- Rumex occidentalis
- Rumex aquaticus
- Rumex arcticus
- Rumex pseudonatronatus
- Rumex gmelinii
- The Rumex salicifolius aggregate R. hultenii, R. pallidus, R. sibiricus
- Rumex sibiricus
- Rumex hultenii
- Rumex pallidus
- The Rumex maritimus aggregate R. fueginus, R. maritimus
- Rumex maritimus
- Rumex fueginus
- The Rumex acetosa aggregate R. acetosa, R. lapponicus, R. pseudoxyria
- Rumex acetosa
- Rumex lapponicus
- Rumex pseudoxyria
- Rumex thyrsiflorus
- Rumex oblongifolius
- Rumex acetosella
- Rumex acetosella subsp. acetosella
- Rumex acetosella subsp. tenuifolius
- Rumex acetosella subsp. arenicola
- Rumex krausei
- Rumex beringensis
- Rumex aureostigmaticus
- Rumex graminifolius
- Rheum