| Name | Echinodorus tenellus f. apanecae Fassett | 
| Authorship | Fassett | 
| Rank | Forma | 
| NomenclaturalStatus | NomLeg | 
| Placed in | Echinodorus tenellus (Martius) Buchenau | 
| GUID | urn:lsid:ipni.org:names:88218-2 | 
| Citation | 1955 Rhodora 57: 203 | 
| Holdings | 1 Specimen held in the Harvard University Herbaria identified as Echinodorus tenellus f. apanecae Fassett | 
| Identification made in | [no date] (1) |