Saponaria officinalis is a common perennial plant from the family Caryophyllaceae. This plant has many common names, including common soapwort, bouncing-bet, crow soap, and soapweed. The toxic substance saponin is contained in the roots at levels up to 20 percent when the plant is flowering. It produces a lather when in contact with water. (Wikipedia. 2026. Saponaria officinalis https://en.wikipedia.org/wiki/Saponaria_officinalis)
