Silene antirrhina  Sleepy Catchfly
ANNUAL.  A tiny plant, often nothing more than a wiry stem 10-15 cm tall, topped with a few .5 cm urn-shaped seedpods.  Flowers pale pink, .5 cm, with five cleft petals, ephemeral and rarely seen, in bloom April-September.  Common on bare or disturbed ground, but often overlooked.
FAMILY:  Caryophyllaceae (Pink Family)