You searched for: Institution University of Michigan. Libraries Remove constraint Institution: University of Michigan. Libraries Language UND Remove constraint Language: UND Place Alnwick Township, Oak Heights, 5.6 km NW of Castleton. Remove constraint Place: Alnwick Township, Oak Heights, 5.6 km NW of Castleton. Place North America Remove constraint Place: North America Place Northumberland Remove constraint Place: Northumberland Place Ontario Remove constraint Place: Ontario Topic Magnoliopsida Remove constraint Topic: Magnoliopsida