[SiennaMom]

Hello, Here is my plant, with buds.
Below it is the possible match from a plant ID app. Do you think it is an Alternanthera?
Thank you in advance and Happy New Year!

 

[SiennaMom]

Yes, it is Alternanthera. But it's A. ficoidea, a non-aquatic.

Thank you Cavan Allen.
I'm a complete newbie at this, but I'm surprised (and a bit bothered) at how common it is for pet stores to sell terrestrial plants completely submerged in water, as if they are aquatic plants. It seems like deceptive advertising.

 

[SiennaMom]

It's been like that for many years. Might just be because it takes the terrestrial stuff longer to die than a true aquatic that isn't happy.

Should I remove the plant from the tank since it's not aquatic?
It will probably die soon since it's terrestrial. It's been in there for 2 weeks. The leaves are still ok-ish in color/shape, and hardly any have fallen off (I check often to make sure nothing is rotting and fouling up the water).
I also notice that the buds have grown bigger and more new buds are starting. Here's a picture taken a minute ago