Sccannalover, your photo is a bit blurry, do you possibly have a clearer photo you can share?
'Roma' has a very narrow cream to white leaf margin.
'Picasso' is said to be a dwarf variety, reaching heights of 3 to 4 feet. The two photos in our database look totally different, I believe the one on the right is definitely Picasso but not the one on the left.
Another photo of Picasso can be viewed here:
https://www.rhs.org.uk/Plants/...
'Britannia' is said to have large ruffly blooms.
I wonder if yours could be 'Orange King Humbert'?
Canna (Canna x generalis 'Orange King Humbert')
http://www.pondsplantsandmore....
http://www.floridaaquatic.com/...
