This is species rose that that grows in the foothills of the Himalayas with Rosa gigantea being best described as a rambling or climbing rose.
As the name suggests the flowers are large, white to creamy white and this is a rose that can reach heights of over 15 metres.
Not widely grown it is however a very important rose as it was used as one of the parents of the hybrid Tea Rose, the other being Rosa chinensis. Much of this hybridisation was carried out in Portugal in the late 1800s.
This wild rose is also a very thorny rose, with large curved thorns. Sometimes listed as R. odorata var. gigantea.
Roses such as Rosa gigantea are not suited to every garden, however if you have the space, or perhaps a shed that you would like covered, it is one to consider.