Tall Background Plants For South American Tank

[CLOSSIE]

So! As the topic says, I am looking to put some tall background plants in my tank. I have Giant Vallis already and was looking for some recommendations from you all in this section.
I guess I am not necessarily tied to South American plants, although it would be nice to keep nearly everything South American.
So!
Something not too bushy and with some colour variation (other than green) would be nice.
Over to you.
Good Luck
Many thanks

 

[CLOSSIE]

Ok. Forgot to include some more of the basic stuff.
I've got around 2wpg, DIY co2, fine pea gravel (no substrate).
Water column is fertilized with tropica nutrition each water change, and a dose of flourish exel every other day.
Growth is good for all other plants although I must admit they are easy plants to grow (sags, crypts, vallis, java's, micro swords)

Cheers for any feedback possible.

 

[Themuleous]

How about Alternanthera reineckii?

Sam