Six photographs of Russian Olive, Sand Jujube, Elaeagnus angustifolia, Sha zao, 沙枣 a member of the Elaeagnaceae, oleaster family, a shrub or small tree that is a serious weed species in North America, native to dry regions of northern and northwest China, widespread elsewhere. The fruit is used fresh in Lanzhou, and dried fruits are found in markets in arid northern Chinese regions. Contains Vitamin C.