Murdannia keisak (Hassk.) Hand.-Mazz.
Gleason, Henry A. & Cronquist, Arthur J. 1991. Manual of vascular plants of northeastern United States and adjacent Canada. lxxv + 910 pp.
Species Description - Stems weak, decumbent or prostrate at base, 3–8 dm; lvs lance-linear, 3–6 cm; fls solitary, the pedicels arising from one to several of the upper sheaths, or some of them in 2–4-fld axillary racemes; sep 5–6 mm; pet pink, ca 8 mm. Fresh tidal marshes and margins of lakes and ponds; native to e. Asia, intr. from Md. to Fla., and inland to Ky., Tenn., and Ark. Late summer and fall. (Aneilema k.)