Sacha wrote:
Does anyone here know if it's true that Canna Heinrich Seidel is really C.
Roma which became misattributed some years ago? Are they in fact, one and
the same? David - anyone?

Well, 'Heinrich Seidel' has bright golden yellow flowers with orange
feathering especially towards the middle of the flower. It's a
sumptuous variety and really ought to be more widely available. C.
'Roma' appears to have been confused with 'Florence Vaughan', which is
one of the 'spotty' Cannas. In this case the ground colour is yellow
heavily overlaid with orange spots and blotches and a yellow border.
It's a fair bet that the variety we know as 'Florence Vaughan' is in
fact 'Roma'. As to 'Roma' and Heinrich Seidel' being confused, they
are rather too distinct for that to happen.