They both look like forms of a species of Alternanthera (bettzickiana, I think?) that doesn't grow submersed.
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Upon further investigation, it does look like bettzickiana 
.. how unfortunate, they look so beautiful. Funny that they also grow leggy roots like reinickii does.
.. how unfortunate, they look so beautiful. Funny that they also grow leggy roots like reinickii does.1 - 3 of 3 Posts
