Wednesday, December 10, 2014

Slender Knotweed

I was at the Pinery in September checking out some dune openings in the east end of the park and came across a species new to me.  Slender knotweed (Polygonum tenue) is a rare, and not-so-showy plant found in sandy prairie, savanna and woodland habitats. The plant in this photo is about to flower.


The genus Polygonum comes from the latin Poly = many and gony = knee or joint.  Thus the term knotweed.  I guess slender jointweed would have other connotations.

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