''Knorringia sibirica'' is a

species In biology, a species is the basic unit of classification and a taxonomic rank of an organism, as well as a unit of biodiversity. A species is often defined as the largest group of organisms in which any two individuals of the appropriate s ...

flowering plant Flowering plants are plants that bear flowers and fruits, and form the clade Angiospermae (), commonly called angiosperms. The term "angiosperm" is derived from the Greek words ('container, vessel') and ('seed'), and refers to those plants th ...

in the family

Polygonaceae The Polygonaceae are a family of flowering plants known informally as the knotweed family or smartweed—buckwheat family in the United States. The name is based on the genus ''Polygonum'', and was first used by Antoine Laurent de Jussieu in 1789 ...

, native to Siberia to Korea. It was first described, as ''Polygonum sibiricum'' by

Erik Laxmann Erik Gustavovich Laxmann (russian: Эрик (Кирилл) Густавович Лаксман) (July 27, 1737 – January 6, 1796) was a Finnish-Swedish clergyman, explorer and natural scientist born in Nyslott in Finland, then part of Sweden. ...

in 1773, and transferred to ''

Knorringia Knorringia is a genus of plants in the family Polygonaceae. It is native to Central Asia and Siberia. Description Species of ''Knorringia'' are perennial herbaceous plants growing to about tall from a slender, often branched rhizome. The stem m ...

'' by Nikolai Tzvelev in 1987.

References

Polygonoideae Flora of Siberia Flora of Korea Plants described in 1773 {{Polygonaceae-stub