Jeffersonia dubia 'Alba' (ex: Ruth and Whitney Gorham) - This is the rare white flowering form of Asian Twinleaf. Otherwise it is typical which is to say exceptional and choice. Part, dappled to open shade in fertile, draining soil. 'Alba' may have been a mutation found in someone's garden... we don't know the origins. But the species is naturally found in Korea and Manchuria. These resent disturbance once settled into their garden home. Pot grown division.