BCP/Fallopia japonica


Fallopia japonica

Flowering branch

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Profile for Fallopia japonica (Japanese Knotweed)
Identifying Characteristics
Flowers:The flowers are small, creamy white, produced in erect racemes 6–15 cm long in late summer and early autumn.
Foliage:The leaves are broad oval with a truncated base, 7–14 cm long and 5–12 cm broad, with an entire margin.
Stem:hollow stems with distinct raised nodes that give it the appearance of bamboo
Life Cycle: Perennial
Recent Logs edit

Global data:
Temperate zone season(s): Late Summer, Early Fall

Regional data:
Southeastern Pennsylvania: (invasive or naturalized) (cultivated) August, September
New Hampshire: (invasive or naturalized) August, September

Additional images:

Please contribute!
Please contribute!
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 for orientation.