Polygonum majus explained

Polygonum majus is a North American species of flowering plant in the buckwheat family known by the common name wiry knotweed. It grows in the western United States and western Canada, from British Columbia south as far as the Sierra Nevada of northwestern Inyo County in California, east as far as Montana.^{[1] [2]}

Description

Polygonum majus is an herb up to 60 cm (2 feet) tall. Stems are thin and wiry. Flowers are white or pink.^{[3] [4]}

External links

• Jepson Manual Treatment

Notes and References

1. http://bonap.net/MapGallery/County/Polygonum%20majus.png Biota of North America Program 2014 county distribution map
2. http://www.calflora.org/cgi-bin/species_query.cgi?where-calrecnum=11035 Calflora taxon report, University of California, Polygonum majus (Meisn.) Piper Large douglas' knotweed
3. http://www.efloras.org/florataxon.aspx?flora_id=1&taxon_id=250060742 Flora of North America, Polygonum majus (Meisner) Piper, 1901. Wiry knotweed
4. Piper, Charles Vancouver. 1901. Flora of the Palouse Region 63