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Japanese Knotweed [Polygonum cuspidatum]

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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