This alien weed is widely scattered across cool temperate regions of North America, but it is generally rare across southern states. In Ky. it is known only from an old coll. in GALL (Univ. of Cincinnati), with B's note "occasional on roadsides." Vaccaria may be appropriately combined into Gypsophila (W). That genus includes species sometimes grown as "wildflowers", especially G elegans M. Bieb. (also known as "baby's breath").