pink flower near stream

pink flower near stream

Observation - pink flower near stream. Description: five pink petals deeply incised so looks like ten. Leaves are opposite lush almost succulent smooth edged. Growing in large clumps next to a stream in wet grassland

five pink petals deeply incised so looks like ten.
Leaves are opposite lush almost succulent smooth edged. Growing in large clumps next to a stream in wet grassland