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|Profile for Fallopia japonica (Japanese Knotweed)
||The flowers are small, creamy white, produced in erect racemes 6–15 cm long in late summer and early autumn.
||The leaves are broad oval with a truncated base, 7–14 cm long and 5–12 cm broad, with an entire margin.
||hollow stems with distinct raised nodes that give it the appearance of bamboo
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Regional data and additional images for Fallopia japonica
Temperate zone season(s): Late Summer, Early Fall
Southeastern Pennsylvania: (invasive or naturalized) (cultivated) August, September
New Hampshire: (invasive or naturalized) August, September
This page is a profile for the plant species Fallopia japonica
, used to collect records of where and when this plant was observed blooming, and for providing identification information for use in dichotomous keys. If you would like to help collect data for this or other plants, see Bloom clock project/How to Contribute