English English Rubus ursinus Pacific blackberry creeping blackberries Rubus ursinus Rubus ursinus Rubus ursinus Pacific blackberry Rubus ursinus English creeping blackberries Rubus ursinus Rubus Ursinus English Rubus ursinus http://en.wikipedia.org/wiki/Rubus_ursinus Rubus English creeping blackberries creeping blackberries Rubus ursinus