Alright...here are some pictures of Bacopa monnieri with somewhat jagged leaf edges and angular leaves:
Source: Bacopa monnieri -- Center for Aquatic and Invasive Plants
Notice, in the second picture, how small the leaves are next to the hand. Nowhere near the two inches that my plant's leaves get to be.
Here is another picture of a bacopa monnieri with a hand and fingers for comparison:
Here is a closeup of a B. monnieri that shows how thick and fleshy the leaves can get when grown emersed:
Here another closeup of the flower and leaves:
And here the whole growth:
Sourse for the three pics above: Hawaiian Native Plants, UH Botany
Finally, here another picture of my mystery plant with my hand right next to it holding it:
You can see that it looks nothing like the Bacopa monnieri in the above pictures. The mystery plant's leaves are still fleshy, but not as thick and fleshy as the B. monnieri leaves. And the leaves are much longer of course.
Hope this helps with the identification. In case nobody has an answer here, where would be the best place to send these pictures for identification? Is there any scientific institution (i.e. botanists) that you know of that could help me out?