This species of northeastern wetlands is known here only from a few colls., mostly on lowlands near the Ohio Rv. The most recent records are from MARS and POWE in the 1980s (M. Medley colls. at APSC). R. Athey made several colls. in BALL during the 1970s, but the species has not been recorded there since then. It may have been associated with Spiraea alba which has also disappeared from BALL; both species are typical of wet shrubby meadows further north. Cr also listed the hybrid of L. terrestris with L. quadrifolia (X producta) for Ky. but details are unknown.