I succumed to temptation and bought another mum yesterday at the supermarket. Of course there was no cultivar name, but while checking out
chrysanthemum (or Dendranthema as I believe they're now classified)
morifolium, I stumbled across an FDA report about Chinese medicinal ingredients, including chrysanthemum tea.
I do not recommend the ingestion of ANY garden plants. You could get sick or be allergic, and Kinkytoes is not responsible.
But the paper's interesting and lists several plant ingredients, including Japanese honeysuckle and white mulberry leaves as well as scientific and ethnographic evidence.
http://www.accessdata.fda.gov/script.../grn000013.pdf