Summer Flowers: Tall Bellflower

Campanulastrum americanum (Tall Bellflower) is a relatively common flower, but its appearance is unusual because of  its large, curved style, which is the trunk of the pistil (a simple explanation of flower parts can be found here).  It does not, unlike other bell flowers, have a bell-shaped flower.  It can grow up to 6 feet tall and will usually have many flowers on a single stalk.  C. americanum is found throughout eastern North America except in New England, New Jersey, and Delaware. 

I only have a couple of pictures because I've only come across this one once:

 C. americanum on the upper Hannah Run Trail in August 2010.

A side view shows the style better.