R. brunonii question

General Discussion
1

Does R. brunonii sucker? I can’t remember ever seeing anything indicating that brunonii or any of it’s close relatives produce suckers.

I received some seeds a few years ago from Henry Kuska labeled (R. brunonii X O.P.) X O.P. Only two seedlings germinated. One never exceeded a few inches high and was eventually removed. The other has been slowly increasing in size each year for the past few years. I’ve potted it in larger pots each year, and it just went into the ground. It remains about three feet high, with very thorny upright canes. It doesn’t behave at all like a climber to this point. Late this summer, while still in a large pot, it produced a few suckers several inches from the base of the plant. No blooms yet. Maybe next year.

Henry has a picture of R. brunonii X O.P. posted at the link. However, I don’t know if this plant was the source of my seeds. Henry’s picture doesn’t look like I would expect brunonii or a first generation hybrid to look. My first thought was that Henry’s picture looked more like one of the North American natives. Opinions, anyone?

Mark

Link: picasaweb.google.com/HAKuska/HenrySRoses#5071501922230294114

2

Hi Mark,

I highly doubt Rosa bruonii itself suckers at all. This cluster of species are not known for that traits whatsoever. The picture of Henry’s seedling of Rosa brunonii is definitely a hybrid that it not 100% pure Rosa brunonii. It looks like it is bred with something descending from the American, Asian or European briar types, which are largely known for their ability to sucker abundantly. What is in that cross is anyone’s guess. Good luck with your seedling. Rosa brunonii is one of the rambling types largely unused so it would be cool to see your progress with it.

3

It is definitely some sort or hybrid. Compare the pistils on his seedling to that on a flower of R. brunonii on helpmefind. On helpmefind they come out. On his seedling they are flat like you see on a rugosa or foliosa or etc. Also the sepals are different, the ovary are very distinct between his seedling and the pure species and then their are the hairs on the sepals and ovary. I wonder what his R. brunonii crossed with?