| Classification | Cyperaceae: Cyperus | 
| Harvard University Herbaria Barcode(s) | 00027630 | 
| Type Status | Isotype | 
| Collector | C. Wright | 
| Collector number | 1950 | 
| Country | Mexico | 
| State | Sonora | 
| Geography | Mexico: Sonora | 
| Locality | N. Mex., [East of Santa Cruz] | 
| Date Collected | 1851-09-29 | 
| Habitat | [Along mountain torrents] | 
| GUID | http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/010d7308-22c9-4e2e-b2e1-5be8c7de151d | 
| Harvard University Herbaria Barcode | 00027630 | 
| Herbarium | GH | 
| Previous ownership | ex Herb. John A. Lowell, transferred from the Boston Society of Natural History to GH, Oct. 2, 1941 | 
| Family | Cyperaceae | 
| Type Status | Isotype | 
| Isotype of | Cyperus lateriflorus Torrey | 
| Verified by | W. T. Kittredge | 
| Date Determined | 2008 | 
| Taxon Reference | (for  Cyperus lateriflorus Torrey) Rep. U.S. Mex. Bound., Bot. 1859. 226. | 
| Family | Cyperaceae | 
| Determination | Cyperus difformis Linnaeus | 
| Determined by | G. C. Tucker (NYS) | 
| Date Determined | 1985 | 
| Determination Remarks | [current name] | 
| Annotation Text | Isotype of Cyperus lateriflorus Torr. | 
| Family | Cyperaceae | 
| Determination | Cyperus lateriflorus Torrey | 
| Determination Remarks | [label name] | 
| Sex | not determined | 
| Phenology | NotDetermined | 
| Preparation Type | Sheet | 
| Preparation Method | Pressed |