Mexican hats

Every summer, I swear that I'm going to learn - and remember! - the names of more New Mexican wildflowers; every year, I suspect, I start with these Mexican Hats ... The new wildflower identification book is on its way, so here ... well, let's be official, and call it Ratibida columnifera, commonly known - outside of these parts, anyway, as the upright prairie coneflower.  It's in the daisy family.  The only new fact I've learned about it is that the Zuni boil up the whole flower and use it as an emetic.