Very neat, we've spent a little bit of time this morning, but still haven't narrowed it down. Do you have a location you can share? A local or regional flora can sometimes give clues, if one exists.
Loasa grandiflora??? http://saximontana.lakeheadu.ca/andean/LoasaGrandifloraNasaMagnifica/IMG_9897.JPG Loasa Grandiflora / Nasa Grandiflora orange flower, Cordillera Blanca, Peru | portfolio.photoseek.com