Didiplis diandra (Nutt. ex DC.) Alph. Wood
Family: Lythraceae
Water-Purslane
[Ammannia nuttallii ,  more]
Didiplis diandra image
Nathanael Pilla  
Submersed or rooting in mud; stems weak, branched, 1-4 dm; lvs numerous, the submersed ones linear, 1-2.5 cm, sessile and truncate at the base, the emersed ones shorter, narrowly elliptic, tapering at the base. Minn. and Wis. to Kans. and O., s. to Va., Fla., and Tex. Summer. (Peplis d.)

Gleason, Henry A. & Cronquist, Arthur J. 1991. Manual of vascular plants of northeastern United States and adjacent Canada. lxxv + 910 pp.

©The New York Botanical Garden. All rights reserved. Used by permission.
From Flora of Indiana (1940) by Charles C. Deam
Very rare. In stagnant water in ponds.