| Classification | Cyperaceae: Cyperus | 
| Harvard University Herbaria Barcode(s) | 00342655 | 
| Type Status | Isotype | 
| Collector | G. Davidse & W. G. D'Arcy | 
| Collector number | 11790 | 
| Country | Brazil | 
| State | Bahia | 
| Geography | South America: South America (Region) (Region): Brazil: Bahia | 
| Locality | 3 km W of Itapicuru along highway BA 402 to Olindina | 
| Date Collected | 1976-04-01 | 
| Elevation | 160 m | 
| Habitat | Flat sand area | 
| GUID | http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/1e4ec058-3620-4174-acc0-13a9f3c084b1 | 
| Harvard University Herbaria Barcode | 00342655 | 
| Herbarium | GH | 
| Previous ownership | Instituto de Botânica São Paulo (SP) | 
| Family | Cyperaceae | 
| Type Status | Isotype | 
| Isotype of | Cyperus alvesii G. C. Tucker | 
| Verified by | Tucker, Gordon C. | 
| Date Determined | 2012 | 
| Determination Remarks | [filed under] [current name] | 
| Taxon Reference | (for  Cyperus alvesii G. C. Tucker) Harvard Pap. Bot. 2008. 13: 237. | 
| Family | Cyperaceae | 
| Determination | Cyperus sp. | 
| Determination Remarks | [label name] | 
| Phenology | Fruit | 
| Preparation Type | Sheet | 
| Preparation Method | Pressed |