A pic of a small spray of flowers taken today (really slow to open).
…and another flower shot.
Simply wonderful photos.
Rosa multiflora.
There are some things that say R. multiflora:
Your first newer photo has new vigorous canes emerging while the plant is still in bloom. Those newest canes will grow longer than last year’s canes with the current blooms, so that often we don’t see the end of the bloom.
The colors of the anthers are also distinctive. They are that lovely yellow for the first day and then go to a less-lovely brown. You’ll never see a spray of blooms with fresh looking anthers because although the petals will last for several days, the blooms will look less than fresh because of the anthers.
The leaves are going to ring a bell with someone as to which of the multiflora variations it is, but the blooms and growth spurt say multiflora for certain.
The flowers are all spent on these two plants now and I had left them hoping for some OP hips as i had planted two different varieties of multiflora next to each other, one white and one pink, that flowered at the same time but I got none on either variety. All the flowers lasted a long time but then the ovaries just dropped off. So it got its summer haircut today and about 100 cuttings have been made for rootstocks. If anyone in Australia would like me to send them a few rooted cuttings pop over to my ‘Rose Talk’ forum and send me a message (I don’t really want to put my email up here as it seems to get hit by spammers a bit. I’m the admin going as ‘TasV’ - url below).
As multiflora is a widely spread species in its native area there are many quite varied forms some with rugose foliage so it is a real possibility.
Another is rosa rubus I grew a few years ago and discarded as not distinctive enough in my eye. I do not look for understocks.
The rosa rubus I grew had this kind of flowers with rather untidy petals and a surprising for a species reduced fertility.
This is the species rose seedling derived from a plant in the mountains in utah. I thought it would be a woodsii, but it doesnt look quite right. I love the look in general though. Thoughts?
Most of the keys split based on features not quite yet visible in your youngster, but I would say that R. woodsii is most likely. The species is variable and there are several subspecies that occur in Utah. Barring any effects of being raised far from its natural environment, you can probably lock in the ID once it matures.
Stefan
I’d say Rosa gymnocarpa.
-Jonathan
Rosa gymnocarpa grows wild in the forests all around me, and is tiny in all its parts, with very bristley stems from root to tip. The pictured plant doesn’t match what I have seen in the least.