Geranium pulchrum flower

Geranium pulchrum flowers grow long-stalked in loose clusters or solitary at stem-tips. The five broadly rounded, square-tipped or shallowly notched petals form a wide bowl. Petal colour is mauve to bluish purple, blue or pink. In picture the petal bases form a white central patch with uneven, spiky perimeter. 

The stamens here have greyish, thread-like anthers on filaments no longer than the anthers. In the centre, the red-purple style is erect and well longer than the stamens. A little later the purple upper part will separate into five recurving style branches ending in five stigmas.

While the flower in picture is facing up, the sepal-covered, hairy and somewhat ovoid bud is still nodding. A bract is visible where flower and bud pedicels meet (Manning, 2009; Pooley, 1998; iNaturalist).