Flower ID: IMG_9768.JPG-09-26-2021 Flower name (scientific): Fallopia japonica var. japonica (Houttuyn) Ronse Decraene PY: 1988 Flower name (common): Japanese Knotweed Family name (common): Buckwheat Family name (scientific): Polygonaceae Scientific name origin: Genus: Specific epithet: Common name origin: Flower description: Size: 0.1 to 0.2 inches ( 0.3 to 0.5 cm) Petal count: 5 Color: white Other: flower arrangement, Panicle Plant description: Size: 48 to 120 inches ( 122. to 305. cm) Stem hairy: Other: Leaf description: attachment is alternate, type is simple Size: Color: Hairy: Other: Shape: leaf, broadly ovate (IL), tapered to a sharply pointed tip (MB). Origin (native, introduced, invasive): Invasive/Restricted in Wisconsin Status (common, uncommon, threatened, rare): Uncommon Bloom time (typical): August to September Cycle (annual, biennial, perennial): Perennial Habitat: Fruit: Seed: Importance to wildlife: How to differentiate related varieties: Ethnobotany: Latitude: 44.805820 Longitude: -91.499635 Altitude: 236.70 Distribution: In Wisconsin: In US: In Canada: References: