What is "herniaria glabra"

Burstwort \Burst"wort`\, n. (Bot.) A plant ( Herniaria glabra) supposed to be valuable for the cure of hernia or rupture.

Herniaria glabra, known as smooth rupturewort, is a plant of the family Caryophyllaceae. Growing in North America and Europe, it is believed to have diuretic properties. It contains herniarin, a methoxy analog of umbelliferone