I doubt if it would be an A. acaulis hybrid, from the appearance. The only species I have ever grown is A. acaulis but some years ago I had a seedling appear right alongside of it which is somewhat like yours. Foliage the same, slightly reddish in the open, and the stems were long (35cms) and slim with many small (1cm) flowers on each, the same colour as acaulis (flesh pink). It had many seeds, much smaller than the very few I get on acaulis but didn't germinate when sown. I eventually dug it and heaved it out. However, just a year ago, another seedling exactly the same, appeared in one of the raised beds. It has been in flower through the autumn and winter, stopped now though. I'd go out and take a pic but it is TEAMING with rain right now and I'm not putting my nose out the door. But maybe tomorrow or the next day.
