Strange Flower

I have planted a lot of flowers over the years.  I usually recognize them when I see them.  I appreciate some (like Brown-Eyed Susans) that self-sow in places they like better than where I originally planted a few a decade ago.  I have a lot of those now in clumps scaterred around a corner of the yard.

I've been planting other self-sowers in other spots (seems efficient).  If they survive like the Susans and spread around, it will be interesting.  When I plant annuals, I tend to be very geometric, but these I will let wander where they may.  In fact, I'll snip the flower heads, rub the seedheads in my hand into a bowl to separate the seeds and just scatter them everywhere I don't mow. 

If it works, great - Flowers Everywhere.  If not, no loss...

I know it works in general, because last Fall, I collected seedheads from the Pollinator Bed and scatterred them back in and added a thin layer of leaf compost to cover lightly.  I got mostly just one kind though.  I don't know what it is, but orange flowers are nice and the bees love them.

But the strange flower is this...

I've never seen that in the yard, and I've sure never planted anything like that.  It's 16" tall.  The flower lasted 2 days and I don't see another bloom coming.

I may take a walk around the neighborhood to see if someone is growing those to ask what it is.  Of course, if anyone here recognizes it, that would be good...