Gypsophila repens, the alpine gypsophila or creeping baby's breath, is a species of flowering plant in the family Caryophyllaceae, native to the mountains of central and southern Europe, where it grows on dry, chalky slopes. The Latin name literally means "creeping chalk-lover". It is a prostrate, mat-forming herbaceous perennial, growing around 20 cm (8 in) tall by 30–50 cm (12–20 in) wide. For much of the summer it bears masses of star-shaped flowers which may be white, lilac or light purple, in loose panicles.
It can be invasive in the USA.