Ubiquitous strong-scented mat-forming Eurasian herb of wasteland,hedgerow or pasture having narrow serrate leaves and small usually white florets,widely naturalized in North America.

• 到处存在的有很强香味的欧亚的一种药草，生长于荒地，篱墙和牧场上，具有窄的齿状叶和小白花，在北美被广泛种植。