| Classification | Hydrocharitaceae: Elodea | 
| Harvard University Herbaria Barcode(s) | 00022854 | 
| Type Status | Isotype | 
| Collector | Peter (Pedro) Jörgensen | 
| Collector number | 2535 | 
| Country | Argentina | 
| State | Chaco | 
| Geography | South America: South America (Region) (Region): Argentina: Chaco | 
| Locality | Las Palmas | 
| Date Collected | 1912-09-10 | 
| GUID | http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/7b5afa41-208b-4dc5-858c-aff704a1c301 | 
| Harvard University Herbaria Barcode | 00022854 | 
| Herbarium | GH | 
| Family | Hydrocharitaceae | 
| Type Status | Isotype | 
| Isotype of | Elodea richardii H. St. John | 
| Determination Remarks | [is a fragment] [filed under] | 
| Taxon Reference | (for  Elodea richardii H. St. John) Darwiniana 1963. 12(4): 649. | 
| Sex | not determined | 
| Phenology | NotDetermined | 
| Preparation Type | Sheet | 
| Preparation Method | Pressed |