| Name | From | To | Age range |
|---|---|---|---|
| Polygonum | Tertiary | Recent |
|
| Polygonum aconogonon | Pliocene | Middle Pleistocene |
|
| Polygonum amphibium | Middle Eocene | Early Miocene |
|
| Polygonum aviculare | Paleogene | Pleistocene |
|
| Polygonum avicularia | Miocene | Middle Pleistocene |
|
| Polygonum aviculate | Late Miocene | Early Pliocene |
|
| Polygonum barredae | Late Givetian | Early Frasnian |
|
| Polygonum bistoria | Pliocene | Middle Pleistocene |
|
| Polygonum bistorta | Late Oligocene | Early Pleistocene |
|
| Polygonum californicum | Pliocene | Pliocene |
|
| Polygonum carneum | Late Pliocene | Holocene |
|
| Polygonum coccinium | Early Miocene | Middle Miocene |
|
| Polygonum convolvulus | Middle Oligocene | Pleistocene |
|
| Polygonum dielsii | Nd | Nd |
|
| Polygonum glabrum | Late Neogene | Late Neogene |
|
| Polygonum gracilis | Tremadocian | Tremadocian |
|
| Polygonum hydropiper | Miocene | Pleistocene |
|