Pretty pale yellow 1" blooms in spring. This plant should really be considered a climber, it has rose type leaves but no thorns or fragrence. The blooms do not have typical rose petals and blooms only for a couple of weeks in spring.
I've seen this rose planted at the base of a tree and allowed to climb up through the branches. The result is a spectacular cascade of blooms from the top of the tree (best when using a deciduous tree). It takes a few years to achieve this effect.