| Classification | Cyperaceae: Eleocharis |
| Barcode(s) | 00015538 |
| Type Status | Holotype |
| Collector | A. S. Pease |
| Collector number | 12991 |
| Country | United States of America |
| State | Pennsylvania |
| Geography | North America: North America (CA, US, MX) (Region): United States of America: Pennsylvania |
| Locality | Damp dunes, Presqu'Isle, Erie |
| Date Collected | 1910-06-18 |
| Remarks | = E. tenuis (Willd.) Schultes var. atrata (Svenson) Boivin, annotation by B. Boivin, 1979 = E. elliptica Kunth var. atrata (Svens.) S. G. Smith, det. S. G. Smith, 2002 |
| GUID | http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/017b1c33-fc83-41a5-8802-59cffd439610 |
| Harvard University Herbaria Barcode | 00015538 |
| Herbarium | GH |
| Family | Cyperaceae |
| Type Status | Holotype |
| Holotype of | Eleocharis compressa var. atrata Svenson |
| Verified by | P. M. Catling (DAO) |
| Date Determined | 2008-09-** |
| Taxon Reference | (for Eleocharis compressa var. atrata Svenson) Rhodora 1932. 34: 218. |
| Family | Cyperaceae |
| Type Status | Holotype |
| Holotype of | Eleocharis compressa var. atrata Svenson |
| Verified by | S. G Smith |
| Taxon Reference | (for Eleocharis compressa var. atrata Svenson) Rhodora 1932. 34: 218. |
| Sex | not determined |
| Phenology | Fruit |
| Preparation Type | Sheet |
| Preparation Method | Pressed |
