Thanks Hank. Of those two, I'll lean towards 'Navona', then, since it's different to the 'Navarra' I have (which is substantially larger and has a different colour stigma). I'll check the colour of the stigma on the second bloom when it opens, but IIRC it matches the register description of yellow-green.
'Navona' is definitely a triploid according to a paper I read.
