Polygonum majus
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.[2][3]
| Polygonum majus | |
|---|---|
Scientific classification  | |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Eudicots |
| Order: | Caryophyllales |
| Family: | Polygonaceae |
| Genus: | Polygonum |
| Species: | P. majus |
| Binomial name | |
| Polygonum majus (Meisn.) Piper 1901 | |
| Synonyms[1] | |
| |
Description
Polygonum majus is an herb up to 60 cm (2 feet) tall. Stems are thin and wiry. Flowers are white or pink.[4][5]
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References
- The Plant List, Polygonum majus (Meisn.) Piper
- Biota of North America Program 2014 county distribution map
- Calflora taxon report, University of California, Polygonum majus (Meisn.) Piper Large douglas' knotweed
- Flora of North America, Polygonum majus (Meisner) Piper, 1901. Wiry knotweed
- Piper, Charles Vancouver. 1901. Flora of the Palouse Region 63
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