Ah, I see. No clue where it was found, and honestly I haven't the foggiest idea what the other parent would have been, though I suspect they had to be closely related.....
On another note, I have a flower on my pale U. livida, and I want to see if it can cross with U. pubescens. Will update with results.
Lots of bunnies!
U. sandersonii "typical" by hawken.carlton, on Flickr
I love the shape of pubescens leaves. Also, tried crossing this guy with both the pale livida and the typical sandersonii. No sign of success yet however...
U. pubescens by hawken.carlton, on Flickr
U. calycifida by hawken.carlton, on Flickr
U. reniformis by hawken.carlton, on Flickr
More purple on this flower than I've ever seen in this form before...
U. livida "pale flower" by hawken.carlton, on Flickr
U. calycifida rebounding, and just recently another flower stalk formed and is opening flowers now
U. calycifida by Hawken Carlton, on Flickr
And unsurprisingly U. dichotoma still flowering...
U. dichotoma by Hawken Carlton, on Flickr
No luck crossing U. pubescens, unfortunately, but maybe someday..