| Name | Coleataenia longifolia subsp. rigidula (Bosc ex Nees) Soreng |
| Authorship | (Bosc ex Nees) Soreng |
| Rank | Subspecies |
| Placed in | Coleataenia longifolia (Torrey) Soreng |
| Citation | 2010 J. Bot. Res. Inst. Texas 4(2): 691 |
| Holdings | 5 Specimens held in the Harvard University Herbaria identified as Coleataenia longifolia subsp. rigidula (Bosc ex Nees) Soreng |
| Identification made in | [no date] (5) |