Word Origin for stachys
Examples from the Web for stachys
Should it be necessary for any reason to clear the ground, the Stachys must be covered with soil.
Its specific name is a happy one, denoting its resemblance to the Stachys, or hedge-nettle.The Wild Flowers of California: Their Names, Haunts, and Habits|Mary Elizabeth Parsons
I find no mention of Stachys palustris in the American botanists.