''Polygonum nuttallii'' is a North American species of flowering plant in the

buckwheat family 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 ...

known by the common name Nuttall's knotweed. It grows in the

Pacific Northwest The Pacific Northwest (sometimes Cascadia, or simply abbreviated as PNW) is a geographic region in western North America bounded by its coastal waters of the Pacific Ocean to the west and, loosely, by the Rocky Mountains to the east. Though ...

, in

British Columbia British Columbia (commonly abbreviated as BC) is the westernmost province of Canada, situated between the Pacific Ocean and the Rocky Mountains. It has a diverse geography, with rugged landscapes that include rocky coastlines, sandy beaches, ...

Washington Washington commonly refers to: * Washington (state), United States * Washington, D.C., the capital of the United States ** A metonym for the federal government of the United States ** Washington metropolitan area, the metropolitan area centered on ...

, and

Oregon Oregon () is a U.S. state, state in the Pacific Northwest region of the Western United States. The Columbia River delineates much of Oregon's northern boundary with Washington (state), Washington, while the Snake River delineates much of it ...

. ''Polygonum nuttallii'' is an herb up to tall. Stems are thin and wiry. Flowers are white or pink.Small, John Kunkel. 1895. Memoirs from the Department of Botany of Columbia College. vol.I. Monograph of the North American Species of the genus ''Polygonum'' plate 53
line drawing of ''Polygonum nuttallii''

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External links

photo of herbarium specimen at Missouri Botanical Garden, collected in Oregon in 1881
nuttallii Flora of British Columbia Flora of Oregon Flora of Washington (state) Plants described in 1895 Taxa named by John Kunkel Small Flora without expected TNC conservation status {{Polygonaceae-stub