Polygonum californicum
| Polygonum californicum | |
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P. californicum
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| Polygonum californicum Meisn. 1856
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Polygonum californicum is a species of flowering plant in the buckwheat family known by the common name California knotweed. It is native to the west coast of the United States from Washington, Oregon, and northern and central California in the Coast Ranges and Sierra Nevada foothills as far south as Napa and Tulare Counties. It can be found in many types of open habitats.[3][4]
Description
Polygonum californicum is an annual herb producing a slender, angled stem which grows erect to a maximum height near 40 centimeters. The narrow, pointed leaves are mostly located on upper branches of the stem. The leaves have fringed, bristle-tipped stipules attached to their bases. Solitary white or pink flowers occur in upper leaf axils.[5]
References
- ↑ The Plant List, Polygonum californicum Meisn.
- ↑ Tropicos, Polygonum californicum Meisn.
- ↑ Calflora taxon report, University of California, Polygonum californicum Meissner, California knotweed
- ↑ Biota of North America Program 2014 county distribution map
- ↑ Flora of North America, Polygonum californicum Meisner 1856.
External links
- Jepson Manual Treatment - Polygonum californicum
- United States Department of Agriculture Plants Profile; Polygonum californicum
- Polygonum californicum - Calphotos Photo gallery, University of California
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