Common Knotgrass

Description
- Popular name(s): Common Knotgrass, Common Knodweed, Doorweed, Birdweed, Pigweed
- Botanical name: Polygonum aviculare
- Family: Polygonaceae
- Origin: Asia, Europe, North America and as an introduced species in other regions
- Height: The lying to semi-erect growing stems are between 5 and 50 centimeters long
- USDA zone: 5 (-9.4 F/-23 °C)











Categories: White flowers | Wildflowers |

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