Barbara's Pasture Rose has fairly unexciting sepals along the lines of La Reine's. It sets hips, which also look like La Reine's, and contain a similar number of seeds. Having grown BPR alongside La Reine for a few years, I haven't found any clear way of distinguishing them, and suspect that BPR may be a robust clonal line of La Reine, rather than a different plant.