Unknown plant

[ruweiss]

Got this plant from a friend and would be grateful for
an identification.

[Alan_b]

It reminds me of Feverfew, Tanacetum parthenium, although it doesn't look exactly right to be that.  But Tanacetum parthenium has many different cultivars (the semi-double form endemic to my garden comes true from seed).  Or could it be another Tanacetum species?

[ruweiss]

Alan, many thanks for the quick identfication.

[Alan_b]

It's a very tentative identification, Rudi.  I was hoping somebody more knowledgeable would chip in with a better answer.

[Maggi Young]

I too see the  resemblance to Feverfew - but the  flower form and  inflorescence shape is  odd -  I wonder if if might be a hybrid plant, not  necessarily of Tanacetum, but a similar daisy as parent??