Tanacetum species- Ladakh


flower from nubra valley mm 4 26 06 2011: These photographs were taken in july 2008 during a trip to ladakh.
This particular flower was growing amongst rocks in from Nubra valley
Would really appreciate an id

Some Species of Tanacetum ?
Yes Tanacetum sp., but not able to fix species
I have photoimages of my herbarium fot T. longifolium, T. falconeri, and T. artemesoides, but it does not seem to be matching with either.