Goldenrod Bunch/Rosette Galls

This type of gall can be found on other plants and is sometimes called a Rosette Gall.
There were many of these galls along about a 100 ft stretch of road - only near the road not into the meadow.
https://bugtracks.wordpress.com/2013/02/21/goldenrod-rosette-galls-part-3/#comment-11006