So this rose is very intriguing to me, as a tetraploid, with some limited rebloom genes. I kind of feel like DNA testing is in order to find out if it is in the background of fedtschenkoana and Harison's Yellow and not the other way around.

You know? I think ancient civilization sometimes discovers these things and then is given a lot of excess credit. Then we watch Ancient Aliens shows on TV and think our distant ancestors were geniuses. Nah, we are still building McDonalds and electing Donald Trump today. A lot of great thing are pretty much accidental.

No offense to anyone's political views. Donald Trump is plenty of fun to watch on TV. Hillary is a coockoo bird, too anyway.

R. pimpinellifolia, Scotch/burnet rose, a low (50-100 cm high) or repent bush with white or cream flowers 40-50 mm in diameter; habitat: Azerbaijan (Ḵātamsāz, p. 44); it is also reported from Anatolia, the Caucasus, Ṭāleš (Lankarān), and Central Asia (Zieliński, pp. 11-12).

http://www.iranicaonline.org/articles/gol

this rose is very drought tollerant! It survived our dry summer in pur sand without watering while two gorse bushes nearby died.