![Japanese Knotweed [Polygonum cuspidatum]](/images/September/White/thumbnail_IMG_0362.jpg "Japanese Knotweed [Polygonum cuspidatum]")
Common Name:
Japanese Knotweed
Scientic Name:
Polygonum cuspidatum
Colors:
White
Months Appearing:
September
Also called Fallopia japonica. Invasive from Japan.
Flowers in terminal spikes. Each about 1/8 inch across. 5 petals. Separate male and female flowers.
Leaves are simple, hairless, alternate and come to a point. 3-6 inches long.
Hollow, bamboo-like stalk. Up to 50 feet tall.
Edge of woods and fields. St Peters Church, Big Rapids, Mi. September 6. 0361