The photo above shows the flower head of tumble
knapweed as seen at about 3000' at SnowKing Snopark along Road #82 on the south
side of Mt. Adams..........August 25, 2005. Note the long spine at
the tip of each light involucral bract, and the numerous comb-like lateral spines.
The photo above shows a close-up view of an
upper stem leaf of tumble knapweed as seen at about 3000' at SnowKing Snopark
along Road #82 on the south side of Mt. Adams..........August 25, 2005.
Although the upper stem leaves are reduced in size and often entire, the lower
leaves are pinnatifid as is the case with
spotted knapweed.
