Toothcup is a small annual, here one season, gone the next. At the northern limits of its range it is a plant of shores and other damp spots. Farther south it likes to be in the water, even completely submerged. Toothcup has varieties with red or pink foliage, and is sometimes grown in aquariums. Toothcup is also called wheelwort or lowland rotala. It appears in AL, AR, AZ, CA, CO, CT(E), DE, FL, GA, IA, ID, IL, IN, KS, KY, LA, MA(E), MD, MI, MN(T), MO, MS, MT, NC, ND, NE, NH, NJ, NM, NV, NY(T), OH, OK, OR, PA(R), RI(T), SC, SD, TN, TX, VA, WA(S), WI, WV, BC, ON, and south to the limits of the continent. Lucas Co OH, 9/2/13. Loosestrife family, Lythraceae.