It's surprising what you find and can't identify!

[Lvandelft]

I hope this will help to clarify that it is possible to have other colour forms of Primula florindae.
Personally I have seen these other colours many years ago, but never was sure if it were hybrids or not.

What I do know is that the roots seem to inhabit substances which are very useful for cleaning hands when they are very dirty after working in some soils, or when dividing other plants like Erigeron when your fingers get totally nicotin brown from the roots.

Citating W. Wright Smith and H.R. Fletcher : Additions to the Genus Primula.
Notes RBGE XVI , 79..

This very robust species was one of the discoveries of Captain Kingdon Ward in 1924 in S.E. Tibet.
He records it from 4000 m. growing in shady bogs, by running water and even in the streams.
It appears to be abundant in many places in the basin of the Tsangpo and often in company with P. alpicola.
Tibetan species of this section hybridise in culture and there is clear evidence that they occasionally do so in their native haunts.
Their cytology suggests no impediment.
Plants otherwise similar to P. florindae have been collected with reddish amber flowers and this colour-change may or may not be due to crossing.

(Tsanang La near Paka [Ludlow Sheriff and Taylor, 5877]- form with reddish amber flowers)

But other specimens are apparently intermediates intermediates between P. alpicola and P. florindae.

[Lesley Cox]

I was right then. Florindae is yellow.

Or orange or red etc.

If they are hybrid forms this should be evident from the foliage. Florindae's foliage is consistently bright, glossy green, and short and almost rounded to heart-shaped. Plants with waltonii or alpicola would not be as highly polished or as short, even stubby, compared to florindae. I'd be very surprised if alpicola were involved in these orangey forms as it is, in my experience, always white, pale lemon (var. luna) or in deeper or paler shades of purple at the blue end of the range, i.e. indigo rather than towards reddish or magenta shades of purple. It is always a lot shorter than florindae too, and the orangey florindae forms are as tall as the yellow.

[Lesley Cox]

Maybe we should be having this discussion on the Asiatic Primulas page?

[Joakim B]

We have got orange-red seedlings from yellow plants and we only had vulgaris and veris in the garden so I do not think they were involved. These plants gave then orange seedlings. It seems to have the capability to be a bit orange. This may come from the plant we had that might have been a hybrid from the beginning but looked as a straight floridae.
Just to confuse things further.
Kind regards
Joakim