You searched for: Institution University of Michigan. Libraries Remove constraint Institution: University of Michigan. Libraries Language UND Remove constraint Language: UND Place Ca. 12.5 miles (20 km) by road east of Texcoco along Texcoco-Calpulalpan highway (Mexico 136), between km 60 and 61 Remove constraint Place: Ca. 12.5 miles (20 km) by road east of Texcoco along Texcoco-Calpulalpan highway (Mexico 136), between km 60 and 61 Place North America Remove constraint Place: North America Place no data Remove constraint Place: no data Topic Cyperaceae Remove constraint Topic: Cyperaceae Topic Eleocharis Remove constraint Topic: Eleocharis Type still image Remove constraint Type: still image