Hi Frank, last summer I bought a Musa “Orange” from Amulree in the UK, this is what they say about it…
MUSA 'ORANGE' This is a previously unknown banana growing in a friends garden high in the Himalaya's, the only name we have so far is 'Orange' due to the colour of the flower bracts. It seems to come true from seed so we assume it’s a species.
The petioles on M.orange look very similar to those on my M.rubinea so could it be M. rubinea var. orange?
Musa “Orange”
Musa rubinea
Tony