MEXICO CITY, May 23 (Reuters) - A coil of dark braids. Colorful Mexican dress. And a signature unibrow.

Sixty-three years after her death, Mexican artist Frida Kahlo has achieved a level of fame she never reached in her lifetime, her image emblazoned on mugs, T-shirts, keychains and even underwear. But scholars and the painter's descendants lament she has been reduced to a set of distinctive physical features that often overshadows her actual work.