Alice Gless wrote:

http://home.earthlink.net/~agless/White_Roses.jpg

What part of the country are these roses found in? Looks like it could
be rosa multiflora, which is an invasive species rose in much of the
eastern and central US. Here is a link to the HelpMeFind page on rosa
multiflora:

http://www.helpmefind.com/rose/pl.php?n=5366

If you have other roses in your garden, this is not a rose you want to
have in your garden, as it is a carrier of a mite that might carry a
virus callede rose rosette, a rose disease that can kill your roses.

It is a very pretty rose, by the way, and has a sweet scent.