| Name | Echinodorus tenellus var. parvulus (Engelmann) Fassett |
| Authorship | (Engelmann) Fassett |
| Rank | Variety |
| Placed in | Echinodorus tenellus (Martius) Buchenau |
| Holdings | 1 Specimen held in the Harvard University Herbaria identified as Echinodorus tenellus var. parvulus (Engelmann) Fassett |
| Identification made in | [no date] (1) |