Fallopia japonica was FOUND
It was a beautiful sunny day. The edge of a school soccer field is the site for examination. The quadrat was hung on the fairly tall bushes that were flowering with small white flowers. The bush was thick and right on the edge of the soccer field where they do not mow.
The plant has flowers that small white flowers that grow in finger like bunches.
The leaf type is simple, the shape is oval, and the edge is smooth.
The stems have swollen joints and grow in a zig zag pattern.
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Density matters
I was cruising the site this morning and was struck by how tall and dense your knotweed stand is. Wow! Your diversity count says it all.
It is really interesting to compare your observation to the recent observation by trythis on Vinalhaven and slabbe in Oakland. Different habitats seem to yield different growing patterns. ....or knotweed gets its nutrients from watching soccer games :)
Nice pictures!
Dear camel1,
Great observation. You have fully convinced me that what you saw was indeed F. japonica.
I can make out the soccer field next to your site - sweet! And a fairly normal place to find this species.
Good work!