I love this photo, but I am sure it is not 'Florence Vaughan'.
This canna has been mis-named & mis-ID'd over many, many years. Most of these pics (with the exception of pic. 2) look to be 'Cattleya', a totally different canna.
Pic. 2 appears to be 'Roma' with a natural variation it develops in 'hotter than normal' weather.
I have 'trial grown' (over 7 yrs) the 3 most 'alike' cannas with these colour variations that get mis-ID'd for each other: Roma, Britannia & Cattleya.
I cannot find an 'Italia' correctly named (showing the hare-lip) as yet after quite a few yrs .. but still working on it.
They have colour differences in bloom & leaf form.
MOST cannas ID'd as 'Florence Vaugh' are actually Roma. try this link:
https://en.wikipedia.org/wiki/...
Here is a link to info on 'Italia' that cannot be faulted:
http://cannanews.blogspot.com....