| Classification | Cyperaceae: Cyperus |
| Harvard University Herbaria Barcode(s) | 00339923 |
| Type Status | Isolectotype |
| Collector | T. Drummond |
| Country | United States of America |
| State | Missouri |
| Geography | North America: North America (CA, US, MX) (Region): United States of America: Missouri: Saint Louis County: Saint Louis (Missouri) |
| GUID | http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/9e4816fd-4e3e-421e-b21c-e733469089e5 |
| Harvard University Herbaria Barcode | 00339923 |
| Herbarium | GH |
| Previous ownership | Transferred from the Boston Society of Natural History to the Gray Herbarium of Harvard University, October 2, 1941 |
| Family | Cyperaceae |
| Type Status | Isolectotype |
| Isolectotype of | Cyperus acuminatus Torrey & Hooker |
| Verified by | Kittredge, Walter Tobey |
| Date Determined | 2011 |
| Determination Remarks | [filed under] |
| Taxon Reference | (for Cyperus acuminatus Torrey & Hooker) Ann. Lyceum Nat. Hist. New York 1836. 3: 435. |
| Family | Cyperaceae |
| Determination | Cyperus acuminatus Torrey & Hooker |
| Determined by | Denton, Melinda Fay |
| Date Determined | 1979 |
| Determination Remarks | [current name] |
| Family | Cyperaceae |
| Determination | Cyperus acuminatus Torrey & Hooker |
| Determination Remarks | [label name] |
| Annotation Text | Monog. C. filicinus N. et E. not of Vahl. See monog. sp. min. 209. no. 3. |
| Preparation Type | Sheet |
| Preparation Method | Pressed |
| Description | [Specimen damaged by water, Dec 2009] |