Snakeroot, Western Snakeroot, Western Boneset:
Ageratina occidentalis
formerly Eupatorium occidentale

This photo shows a close-up sideview of the inflorescence of western snakeroot in bloom at a small quarry along forest road #3512 above the Cooper Spur Ski Area on Mt. Hood.....................August 2, 2007.

This photo shows a close-up sideview of the inflorescence and upper stem leaves of western snakeroot at a small quarry along forest road #3512 above the Cooper Spur Ski Area on Mt. Hood.....................August 2, 2007.

This photo shows western snakeroot in bloom at a small quarry along forest road #3512 above the Cooper Spur Ski Area on Mt. Hood.....................August 2, 2007.
Paul Slichter