Monday, September 5, 2011

Persicaria virginiana

A patch of Virginia knotweed (Persicaria virginiana, formerly called Polygonum virginianum).  A common plant in Indiana woodlands.  This is in West Lafayette on the bottomland of the Wabash River near the Purdue crew team facility. 

Pierid butterflies feeding on the Virginia knotweed.  Possibly they are Pieris rapae butterflies.  Pictures taken Sept. 3, 2011.

Link to Persicaria virginiana:

Link to Persicaria virginiana:

Link to Persicaria virginiana:

Link to the Polygonaceae plant family:

Link to Pierid butterflies:

Link to Pieris rapae:
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