Please ID this plant

It does not even look like Ludwigia of any kind.

Not sure what it is, but looks like Red Naesea.
 
For sure it is a Ludwigia. Then there are different types of repens.
Regular Ludwigia repens:
Ludwigia%20repens.jpg


Then theres Ludwigia repens x arcuata:
Larcuataxrepens1sm.jpg


And then theres Ludwigia repens x arcuata needle leaf:
LUDWIGIAARCUATA2.jpg
 
Agree w/Bk828 that it is L. repens x arcuata. It is 100% Ludwigia because of the angular growth pattern, ie, they do not grow straight up towards the light. This pattern can be as severe as 45 degrees. Nesea and Amania do not grow at such an angle.
 
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