| Name | Aristida diffusa Trinius |
| Authorship | Trinius |
| Rank | Species |
| Placed in | Aristida Linnaeus |
| Contains | Aristida diffusa var. burkei (Stapf) Schweickerdt Aristida diffusa var. densa (Trinius & Ruprecht) Henrard |
| Citation | 1830 Bull. Sci. Acad. Imp. Sci. Saint-Pétersbourg 1: 68 |
| Holdings | 1 Specimen held in the Harvard University Herbaria identified as Aristida diffusa Trinius |
| Identification made in | [no date] (1) |