sioux: a member of a group of North American Indian peoples who spoke a Siouan language and who ranged from Lake Michigan to the Rocky Mountains
plains indian: a member of one of the tribes of American Indians who lived a nomadic life following the buffalo in the Great Plains of North America
gymnosporangium: genus of fungi that produce galls on cedars and other conifers of genera Juniperus and Libocedrus and causes rust spots on apples and pears and other plants of family Rosaceae