Category
page 1Polygonoideae

Reynoutria japonica
species of plant
Oxyria digyna
species of plant

Reynoutria sachalinensis
species of plant
Atraphaxis
Atraphaxis is a genus of flowering plants in the family Polygonaceae with about 40 species.
Oxyria
Oxyria is a genus of flowering plants in the family Polygonaceae with three accepted species. It has a circumboreal distribution in the northern hemisphere.

Koenigia alpina
species of plant

Reynoutria
Reynoutria is a genus of flowering plants in the Polygonaceae, also known as the knotweed or buckwheat family. The genus is native to eastern China, Eastern Asia and the Russian Far East, although species have been introduced to Europe and North America. Members of the genus, including R. japonica (Japanese knotweed) and its hybrid with R. sachalinensis, are highly invasive plants.
Koenigia
Koenigia as described by Philibert Commerçon is a synonym of Dombeya.

Persicaria wallichii
species of plant
Koenigia islandica
species of plant
Oxygonum
Oxygonum is a genus of plants in the family Polygonaceae with about 38 species. It is native to eastern parts of Africa and to the Arabian Peninsula.
Pteropyrum
Pteropyrum is a genus of plants in the family Polygonaceae. Plants of the World Online accepts seveh species, which range from Turkey to Afghanistan and Pakistan and to the Gulf States and Oman.

Pteroxygonum giraldii
species of plant

Reynoutria ×bohemica
species of plant
Koenigia weyrichii
species of plant

Duma
genus of plants
Polygonoideae
Polygonoideae is a subfamily of plants in the family Polygonaceae. It includes a number of plants that can be highly invasive, such as Japanese knotweed, Reynoutria japonica, and its hybrid with R. sachalinensis, R. × bohemica. The subfamily also includes the cultivated genus Rheum, rhubarb. Boundaries between the genera placed in the subfamily and their relationships have long been problematic, but a series of molecular phylogenetic studies have clarified some of them, resulting in the division of the subfamily into seven tribes.
Koenigia ×fennica
species of plant
Knorringia sibirica
species of plant
Polygonella robusta
species of plant
Pteroxygonum
Pteroxygonum is a plant genus in the family Polygonaceae. , two species are recognized. Their native range is from Tibet to southeast China.
Duma florulenta
species of plant
Koenigia alaskana
species of plant
Knorringia
Knorringia is a genus of plants in the family Polygonaceae. It is native to Central Asia and Siberia.