Bouncing Bet or Soapwort
Bouncing Bet or Soapwort
Saponaria officinalis
Pink Family - Caryophyllaceae
Petals with an indentation at the tip. The 5-lobed calyx is tube-like. 

(Photographed - early August)
A stout, smooth stem bears a terminal group of pink to whitish pink 5-petalled flowers (1" wide).
Oval to lance-like, opposite leaves with generally three, but up to 5, prominent rib-like veins.
  Pathology Images Inc. 2000 to 2002