Marsh skullcap (Scutellaria galericulata) is a common and widespread plant in wetlands across North America. It is found throughout Minnesota in wet meadows, marshes, bogs, fens, swamps, stream banks, pond edges, and roadside ditches. It is often overlooked as its weak stems lean against nearby plants and its blue flowers, though showy, appear sparsely.
There are five skullcap species in Minnesota. Marsh skullcap is distinguished by its leaves which are narrow, no more than ¾″ wide, shallowly round-toothed, very short stalked or stalkless, and pinnately veined with lateral veins that branch and rejoin before reaching the margin; flowers more than ½″ long rising from leaf axils but not at the end of the stem; and its preference for wetlands.