Every accepted species in the genus is listed. A name links to its page when we hold at least three commercially licensed photographs of it. Where we do not, the row shows how many we actually found, which is usually none.
| Species | Authority | Usable photographs | Page |
|---|---|---|---|
| Nassella leucotricha | (Trin. & Rupr.) R.W.Pohl | 387 | documented |
| Nassella pulchra | (Hitchc.) Barkworth | 218 | documented |
| Nassella viridula | (Trin.) Barkworth | 78 | documented |
| Nassella trichotoma | (Nees) Hack. & Arechav. | 57 | documented |
| Nassella lepida | (Hitchc.) Barkworth | 54 | documented |
| Nassella tenuissima | (Trin.) Barkworth | 45 | documented |
| Nassella neesiana | (Trin. & Rupr.) Barkworth | 39 | documented |
| Nassella nardoides | (Phil.) Barkworth | 3 | documented |
| Nassella arcuata | (R.E.Fr.) Torres | 2 | below the evidence gate |
| Nassella cernua | (Stebbins & Love) Barkworth | 2 | below the evidence gate |
| Nassella pubiflora | (Trin. & Rupr.) É.Desv. | 2 | below the evidence gate |
| Nassella charruana | (Arechav.) M.E.Barkworth | 1 | below the evidence gate |
| Nassella hyalina | (Nees) Barkworth | 1 | below the evidence gate |
| Nassella airoides | (Ekman) Barkworth | 0 | below the evidence gate |
| Nassella ancoraimensis | F.Rojas | 0 | below the evidence gate |
| Nassella arcaensis | (Speg.) Torres | 0 | below the evidence gate |
| Nassella arechavaletae | (Speg.) Barkworth | 0 | below the evidence gate |
| Nassella argentinensis | (Speg.) Peñail. | 0 | below the evidence gate |
| Nassella asplundii | Hitchc. | 0 | below the evidence gate |
| Nassella ayacuchensis | (Tovar) Barkworth | 0 | below the evidence gate |
| Nassella barbinodis | (Phil.) Muñoz-Schick, Ciald. & Morrone | 0 | below the evidence gate |
| Nassella brachychaetoides | (Speg.) Barkworth | 0 | below the evidence gate |
| Nassella brachyglumis | (F.A.Roig) Ciald. | 0 | below the evidence gate |
| Nassella brachyphylla | (Hitchc.) Barkworth | 0 | below the evidence gate |
| Nassella brasiliensis | (A.Zanin & Longhi-Wagner) Peñail. | 0 | below the evidence gate |
| Nassella burkartii | (Torres) Barkworth & Torres | 0 | below the evidence gate |
| Nassella cabrerae | Torres | 0 | below the evidence gate |
| Nassella caespitosa | Griseb. | 0 | below the evidence gate |
| Nassella carettei | (Hauman) Torres | 0 | below the evidence gate |
| Nassella catamarcensis | Torres | 0 | below the evidence gate |
| Nassella chaparensis | F.Rojas | 0 | below the evidence gate |
| Nassella chilensis | (Trin.) É.Desv. | 0 | below the evidence gate |
| Nassella coquimbensis | (Matthei) Peñail. | 0 | below the evidence gate |
| Nassella cordobensis | (Speg.) Barkworth | 0 | below the evidence gate |
| Nassella crassiflora | (Roseng. & B.R.Arrill.) Barkworth | 0 | below the evidence gate |
| Nassella curamalalensis | (Speg.) Barkworth | 0 | below the evidence gate |
| Nassella depauperata | (Pilg.) Barkworth | 0 | below the evidence gate |
| Nassella duriuscula | (Phil.) Barkworth | 0 | below the evidence gate |
| Nassella elata | (Speg.) Torres | 0 | below the evidence gate |
| Nassella entrerriensis | (Burkart) Peñail. | 0 | below the evidence gate |
| Nassella fabrisii | Torres | 0 | below the evidence gate |
| Nassella famatinensis | Torres | 0 | below the evidence gate |
| Nassella filiculmis | (Delile) Barkworth | 0 | below the evidence gate |
| Nassella formicarum | (Delile) Barkworth | 0 | below the evidence gate |
| Nassella gibba | (Phil.) Muñoz-Schick | 0 | below the evidence gate |
| Nassella gigantea | (Steud.) Muñoz-Schick | 0 | below the evidence gate |
| Nassella glabripoda | Torres | 0 | below the evidence gate |
| Nassella hirtifolia | (Hitchc.) Barkworth | 0 | below the evidence gate |
| Nassella holwayi | (Hitchc.) Barkworth | 0 | below the evidence gate |
| Nassella huallancaensis | (Tovar) Barkworth | 0 | below the evidence gate |
| Nassella hunzikeri | (Caro) Barkworth | 0 | below the evidence gate |
| Nassella ibarrensis | (Kunth) Laegaard | 0 | below the evidence gate |
| Nassella inconspicua | (J.Presl) Barkworth | 0 | below the evidence gate |
| Nassella juergensii | (Hack.) Barkworth | 0 | below the evidence gate |
| Nassella karstenii | (Hitchc.) Peñail. | 0 | below the evidence gate |
| Nassella lachnophylla | (Trin.) Barkworth | 0 | below the evidence gate |
| Nassella laevissima | (Phil.) M.E.Barkworth | 0 | below the evidence gate |
| Nassella leptocoronata | (Roseng. & B.R.Arrill.) Barkworth | 0 | below the evidence gate |
| Nassella leptothera | (Speg.) Torres | 0 | below the evidence gate |
| Nassella longicoronata | (Roseng. & B.R.Arrill.) Barkworth | 0 | below the evidence gate |
| Nassella longiglumis | (Phil.) Barkworth | 0 | below the evidence gate |
| Nassella macrathera | (Phil.) Barkworth | 0 | below the evidence gate |
| Nassella macrotricha | (F.A.Roig) Ciald. | 0 | below the evidence gate |
| Nassella manicata | (É.Desv.) Barkworth | 0 | below the evidence gate |
| Nassella melanosperma | (J.Presl) Barkworth | 0 | below the evidence gate |
| Nassella mexicana | (Hitchc.) R.W.Pohl | 0 | below the evidence gate |
| Nassella meyeniana | (Trin. & Rupr.) Parodi | 0 | below the evidence gate |
| Nassella meyeri | Torres | 0 | below the evidence gate |
| Nassella mucronata | (Kunth) R.W.Pohl | 0 | below the evidence gate |
| Nassella nidulans | (Mez) Barkworth | 0 | below the evidence gate |
| Nassella niduloides | (Caro) Barkworth | 0 | below the evidence gate |
| Nassella novari | Torres | 0 | below the evidence gate |
| Nassella nubicola | (Speg.) Torres | 0 | below the evidence gate |
| Nassella nutans | (Hack.) Barkworth | 0 | below the evidence gate |
| Nassella pampagrandensis | (Speg.) Barkworth | 0 | below the evidence gate |
| Nassella pampeana | (Speg.) Barkworth | 0 | below the evidence gate |
| Nassella paramilloensis | (Speg.) Torres | 0 | below the evidence gate |
| Nassella parodii | (Matthei) Barkworth | 0 | below the evidence gate |
| Nassella parva | Torres | 0 | below the evidence gate |
| Nassella pauciciliata | (Roseng. & Izag.) Barkworth | 0 | below the evidence gate |
| Nassella pfisteri | (Matthei) Barkworth | 0 | below the evidence gate |
| Nassella philippii | (Steud.) Barkworth | 0 | below the evidence gate |
| Nassella pittieri | (Hitchc.) Peñail. | 0 | below the evidence gate |
| Nassella planaltina | (A.Zanin & Longhi-Wagner) Peñail. | 0 | below the evidence gate |
| Nassella poeppigiana | (Trin. & Rupr.) Barkworth | 0 | below the evidence gate |
| Nassella pseudopampagrandensis | (Caro) Barkworth | 0 | below the evidence gate |
| Nassella psittacorum | (Speg.) Peñail. | 0 | below the evidence gate |
| Nassella punensis | Torres | 0 | below the evidence gate |
| Nassella pungens | É.Desv. | 0 | below the evidence gate |
| Nassella quinqueciliata | (Roseng. & Izag.) Barkworth & Torres | 0 | below the evidence gate |
| Nassella ragonesei | Torres | 0 | below the evidence gate |
| Nassella rhizomata | (A.Zanin & Longhi-Wagner) Peñail. | 0 | below the evidence gate |
| Nassella rosengurttii | (Chase) Barkworth | 0 | below the evidence gate |
| Nassella rupestris | (Phil.) Torres | 0 | below the evidence gate |
| Nassella sanluisensis | (Speg.) Barkworth | 0 | below the evidence gate |
| Nassella sellowiana | (Trin. & Rupr.) Peñail. | 0 | below the evidence gate |
| Nassella smithii | (Hitchc.) Barkworth | 0 | below the evidence gate |
| Nassella soukupii | (Tovar) Barkworth | 0 | below the evidence gate |
| Nassella spegazzinii | (Arechav.) Barkworth | 0 | below the evidence gate |
| Nassella stuckertii | (Hack.) Barkworth | 0 | below the evidence gate |
| Nassella subnitida | (Roseng. & B.R.Arrill.) Barkworth | 0 | below the evidence gate |
| Nassella tenuiculmis | (Hack.) Peñail. | 0 | below the evidence gate |
| Nassella tenuis | (Phil.) Barkworth | 0 | below the evidence gate |
| Nassella torquata | (Speg.) Barkworth | 0 | below the evidence gate |
| Nassella trachyphylla | Henrard | 0 | below the evidence gate |
| Nassella tucumana | (Parodi) Torres | 0 | below the evidence gate |
| Nassella uspallatensis | (Speg.) Torres | 0 | below the evidence gate |
| Nassella vallsii | (A.Zanin & Longhi-Wagner) Peñail. | 0 | below the evidence gate |
| Nassella vargasii | (Tovar) Peñail. | 0 | below the evidence gate |
| Nassella ventanicola | (Cabrera & Torres) Barkworth | 0 | below the evidence gate |
| Nassella wurdackii | (Tovar) Barkworth | 0 | below the evidence gate |
| Nassella yaviensis | Torres | 0 | below the evidence gate |
This site is commercial, so it can only publish photographs licensed for commercial use. Roughly three quarters of the photographs on iNaturalist are CC BY-NC, which excludes them. A species needs at least three usable photographs before we will build it a page, because a page with one picture and no traits tells you nothing you could not get from a search result, and generating hundreds of thousands of those is precisely the practice that got the previous version of this site deleted.
So the species above without a link are not errors and they are not omissions. They are real, accepted plants that we cannot yet document to the standard we hold ourselves to, and the count in the photographs column is exactly how far short we fall.