Source: http://plants.usda.gov/java/profile?symbol=LISE3U.S. Weed Information:
Limnophila sessiliflora (Vahl) Blume
This plant can be weedy or invasive according to the authoritative sources noted below. This plant may be known by one or more common names in different places, and some are listed above. Click on an acronym to view each weed list, or click here for a composite list of Weeds of the U.S.
US Plant Protection and Quarantine. 2010. Federal noxious weed list (1 May 2010). USDA Animal and Plant Health Inspection Service. Washington, DC.
STATE Assorted authors. 200_. State noxious weed lists for 46 states. State agriculture or natural resource departments.
Source: http://en.wikipedia.org/wiki/Federal_Noxious_Weed_Act_of_1974The United States Secretary of Agriculture was given the authority to declare plants "Noxious Weeds", and limit the interstate spread of such plants without a permit. The Secretary has the authority to inspect, seize, and destroy products, and quarantine areas, if necessary to contain, or limit the spread of such weeds.
Hi Bryanmc1988,The Secretary has the authority to inspect, seize, and destroy products, and quarantine areas, if necessary to contain, or limit the spread of such weeds.
Just compost what you have, switch to a nicer species that is not a potential noxious weed in your tank, nor the natural streams, lakes and rivers.
We have about 400 species/types available to us, I'm sure there's a dozen similar species worth far more $ in trade, plant sales, desirable. Better for you, better for everyone.