This pretty flower grew in an abandoned farmers' field close to Chimoio, Mozambique. Suggestions about identification are wellcome. Margaretta rosea it is. Thanks for the id, Bart.
Species: Margaretta rosea Oliv. subsp. whytei (K. Schum.) M. Mwanyambo Date: 2010-12-27 Location: Between Mawenje lodge and turn-off to National Parks office, Chimanimani Habitat: Disturbed open miombo woodland