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Species of Oryzopsis Michx.

All
Accepted Names
Exclude infraspecific names

NameSynonym ofaisortsortacc
Oryzopsis aequiglumis Duthie ex Hook. f. Piptatherum aequiglume (Duthie ex Hook. f.) Roshev.   Oryzopsis aequiglumisDuthie ex Hook. f. Piptatherum aequiglume(Duthie ex Hook. f.) Roshev.
Oryzopsis asperifolia Michx.  a Oryzopsis asperifoliaMichx.  
Oryzopsis bicolor (Vahl) Speg. var. minor Speg. Piptochaetium bicolor (Vahl) É. Desv. var. minor (Speg.) Parodi  iOryzopsis bicolor(Vahl) Speg. var.minor Speg. Piptochaetium bicolor(Vahl) É. Desv. var.minor (Speg.) Parodi
Oryzopsis bloomeri (Bol.) Ricker ex Piper Achnatherum ×bloomeri (Bol.) Barkworth   Oryzopsis bloomeri(Bol.) Ricker ex Piper Achnatherum bloomeri(Bol.) Barkworth
Oryzopsis canadensis (Poir.) Torr. Piptatheropsis canadensis (Poir.) Romasch. et al.   Oryzopsis canadensis(Poir.) Torr. Piptatheropsis canadensis(Poir.) Romasch. et al.
Oryzopsis coerulescens (Desf.) Hack. Piptatherum coerulescens (Desf.) P. Beauv.   Oryzopsis coerulescens(Desf.) Hack. Piptatherum coerulescens(Desf.) P. Beauv.
Oryzopsis exigua Thurb. Piptatheropsis exigua (Thurb.) Romasch. et al.   Oryzopsis exiguaThurb. Piptatheropsis exigua(Thurb.) Romasch. et al.
Oryzopsis holciformis (M. Bieb.) Hack. Piptatherum holciforme (M. Bieb.) Roem. & Schult.   Oryzopsis holciformis(M. Bieb.) Hack. Piptatherum holciforme(M. Bieb.) Roem. & Schult.
Oryzopsis hymenoides (Roem. & Schult.) Ricker ex Piper Achnatherum hymenoides (Roem. & Schult.) Barkworth   Oryzopsis hymenoides(Roem. & Schult.) Ricker ex Piper Achnatherum hymenoides(Roem. & Schult.) Barkworth
Oryzopsis lateralis (Munro ex Regel) Stapf Piptatherum laterale (Munro ex Regel) Roshev.   Oryzopsis lateralis(Munro ex Regel) Stapf Piptatherum laterale(Munro ex Regel) Roshev.
Oryzopsis micrantha (Trin. & Rupr.) Thurb. Piptatheropsis micrantha (Trin. & Rupr.) Romasch. et al.   Oryzopsis micrantha(Trin. & Rupr.) Thurb. Piptatheropsis micrantha(Trin. & Rupr.) Romasch. et al.
Oryzopsis microcarpa Pilg. Piptatherum microcarpum (Pilg.) Tzvelev   Oryzopsis microcarpaPilg. Piptatherum microcarpum(Pilg.) Tzvelev
Oryzopsis miliacea (L.) Benth. & Hook. f. ex Asch. & Schweinf. Oloptum miliaceum (L.) Röser & Hamasha   Oryzopsis miliacea(L.) Benth. & Hook. f. ex Asch. & Schweinf. Oloptum miliaceum(L.) Röser & Hamasha
Oryzopsis molinioides (Boiss.) Hack. ex Paulsen Piptatherum molinioides Boiss.   Oryzopsis molinioides(Boiss.) Hack. ex Paulsen Piptatherum molinioidesBoiss.
Oryzopsis munroi Stapf Piptatherum munroi (Stapf) Mez   Oryzopsis munroiStapf Piptatherum munroi(Stapf) Mez
Oryzopsis paradoxa (L.) Nutt. Piptatherum paradoxum (L.) P. Beauv.   Oryzopsis paradoxa(L.) Nutt. Piptatherum paradoxum(L.) P. Beauv.
Oryzopsis paradoxa (L.) Nutt. subsp. virescens (Trin.) K. Richt. Piptatherum virescens (Trin.) Boiss.  iOryzopsis paradoxa(L.) Nutt. subsp. virescens (Trin.) K. Richt. Piptatherum virescens(Trin.) Boiss.
Oryzopsis pubiflora Hack.  a Oryzopsis pubifloraHack.  
Oryzopsis pungens (Torr.) Hitchc. Piptatheropsis pungens (Torr.) Romasch. et al.   Oryzopsis pungens(Torr.) Hitchc. Piptatheropsis pungens(Torr.) Romasch. et al.
Oryzopsis purpurascens Hack. ex Paulsen Piptatherum purpurascens (Hack. ex Paulsen) Roshev.   Oryzopsis purpurascensHack. ex Paulsen Piptatherum purpurascens(Hack. ex Paulsen) Roshev.
Oryzopsis songarica (Trin. & Rupr.) B. Fedtsch. Piptatherum songaricum (Trin. & Rupr.) Roshev. ex Nikitina   Oryzopsis songarica(Trin. & Rupr.) B. Fedtsch. Piptatherum songaricum(Trin. & Rupr.) Roshev. ex Nikitina
Oryzopsis virescens (Trin.) Beck Piptatherum virescens (Trin.) Boiss.   Oryzopsis virescens(Trin.) Beck Piptatherum virescens(Trin.) Boiss.
Oryzopsis rigida (R. Lesson ex A. Rich.) Zotov  a Oryzopsis rigida(R. Lesson ex A. Rich.) Zotov  
Oryzopsis spp. a Oryzopsis spp. 
Oryzopsis caduca Beal ×Achnella caduca (Beal) Barkworth   Oryzopsis caducaBeal Achnella caduca(Beal) Barkworth
Oryzopsis gracilis (Mez) Pilg. Piptatherum gracile Mez   Oryzopsis gracilis(Mez) Pilg. Piptatherum gracileMez
Oryzopsis lejopoda Speg. Piptochaetium lejopodum (Speg.) Henrard   Oryzopsis lejopodaSpeg. Piptochaetium lejopodum(Speg.) Henrard
Oryzopsis racemosa (Sm.) Ricker ex Hitchc. Patis racemosa (Sm.) Romasch. et al.   Oryzopsis racemosa(Sm.) Ricker ex Hitchc. Patis racemosa(Sm.) Romasch. et al.
Oryzopsis hymenoides (Roem. & Schult.) Ricker ex Piper var. contracta B. L. Johnson Achnatherum contractum (B. L. Johnson) Barkworth  iOryzopsis hymenoides(Roem. & Schult.) Ricker ex Piper var.contracta B. L. Johnson Achnatherum contractum(B. L. Johnson) Barkworth
Oryzopsis contracta (B. L. Johnson) Schechter Achnatherum contractum (B. L. Johnson) Barkworth   Oryzopsis contracta(B. L. Johnson) Schechter Achnatherum contractum(B. L. Johnson) Barkworth
Oryzopsis macounii (Scribn.) Beal Piptatheropsis canadensis (Poir.) Romasch. et al.   Oryzopsis macounii(Scribn.) Beal Piptatheropsis canadensis(Poir.) Romasch. et al.
Oryzopsis parviflora Nutt. Piptatheropsis pungens (Torr.) Romasch. et al.   Oryzopsis parvifloraNutt. Piptatheropsis pungens(Torr.) Romasch. et al.
Oryzopsis melanocarpa Muhl. Patis racemosa (Sm.) Romasch. et al.   Oryzopsis melanocarpaMuhl. Patis racemosa(Sm.) Romasch. et al.
Oryzopsis bicolor (Vahl) Speg. Piptochaetium bicolor (Vahl) É. Desv.   Oryzopsis bicolor(Vahl) Speg. Piptochaetium bicolor(Vahl) É. Desv.
Oryzopsis bicolor (Vahl) Speg. var. bicolor Piptochaetium bicolor (Vahl) É. Desv.  iOryzopsis bicolor(Vahl) Speg. var.bicolor Piptochaetium bicolor(Vahl) É. Desv.
Oryzopsis paradoxa (L.) Nutt. subsp. paradoxa Piptatherum paradoxum (L.) P. Beauv.  iOryzopsis paradoxa(L.) Nutt. subsp. paradoxa Piptatherum paradoxum(L.) P. Beauv.
Oryzopsis hymenoides (Roem. & Schult.) Ricker ex Piper var. hymenoides Achnatherum hymenoides (Roem. & Schult.) Barkworth  iOryzopsis hymenoides(Roem. & Schult.) Ricker ex Piper var.hymenoides Achnatherum hymenoides(Roem. & Schult.) Barkworth
  1. Oryzopsis aequiglumis Duthie ex Hook. f. (=Piptatherum aequiglume (Duthie ex Hook. f.) Roshev.)
  2. Oryzopsis asperifolia Michx.
  3. Oryzopsis bicolor (Vahl) Speg. (=Piptochaetium bicolor (Vahl) É. Desv.)
  4. Oryzopsis bicolor (Vahl) Speg. var. bicolor (=Piptochaetium bicolor (Vahl) É. Desv.)
  5. Oryzopsis bicolor (Vahl) Speg. var. minor Speg. (=Piptochaetium bicolor (Vahl) É. Desv. var. minor (Speg.) Parodi)
  6. Oryzopsis bloomeri (Bol.) Ricker ex Piper (=Achnatherum ×bloomeri (Bol.) Barkworth)
  7. Oryzopsis caduca Beal (=×Achnella caduca (Beal) Barkworth)
  8. Oryzopsis canadensis (Poir.) Torr. (=Piptatheropsis canadensis (Poir.) Romasch. et al.)
  9. Oryzopsis coerulescens (Desf.) Hack. (=Piptatherum coerulescens (Desf.) P. Beauv.)
  10. Oryzopsis contracta (B. L. Johnson) Schechter (=Achnatherum contractum (B. L. Johnson) Barkworth)
  11. Oryzopsis exigua Thurb. (=Piptatheropsis exigua (Thurb.) Romasch. et al.)
  12. Oryzopsis gracilis (Mez) Pilg. (=Piptatherum gracile Mez)
  13. Oryzopsis holciformis (M. Bieb.) Hack. (=Piptatherum holciforme (M. Bieb.) Roem. & Schult.)
  14. Oryzopsis hymenoides (Roem. & Schult.) Ricker ex Piper (=Achnatherum hymenoides (Roem. & Schult.) Barkworth)
  15. Oryzopsis hymenoides (Roem. & Schult.) Ricker ex Piper var. contracta B. L. Johnson (=Achnatherum contractum (B. L. Johnson) Barkworth)
  16. Oryzopsis hymenoides (Roem. & Schult.) Ricker ex Piper var. hymenoides (=Achnatherum hymenoides (Roem. & Schult.) Barkworth)
  17. Oryzopsis lateralis (Munro ex Regel) Stapf (=Piptatherum laterale (Munro ex Regel) Roshev.)
  18. Oryzopsis lejopoda Speg. (=Piptochaetium lejopodum (Speg.) Henrard)
  19. Oryzopsis macounii (Scribn.) Beal (=Piptatheropsis canadensis (Poir.) Romasch. et al.)
  20. Oryzopsis melanocarpa Muhl. (=Patis racemosa (Sm.) Romasch. et al.)
  21. Oryzopsis micrantha (Trin. & Rupr.) Thurb. (=Piptatheropsis micrantha (Trin. & Rupr.) Romasch. et al.)
  22. Oryzopsis microcarpa Pilg. (=Piptatherum microcarpum (Pilg.) Tzvelev)
  23. Oryzopsis miliacea (L.) Benth. & Hook. f. ex Asch. & Schweinf. (=Oloptum miliaceum (L.) Röser & Hamasha)
  24. Oryzopsis molinioides (Boiss.) Hack. ex Paulsen (=Piptatherum molinioides Boiss.)
  25. Oryzopsis munroi Stapf (=Piptatherum munroi (Stapf) Mez)
  26. Oryzopsis paradoxa (L.) Nutt. (=Piptatherum paradoxum (L.) P. Beauv.)
  27. Oryzopsis paradoxa (L.) Nutt. subsp. paradoxa (=Piptatherum paradoxum (L.) P. Beauv.)
  28. Oryzopsis paradoxa (L.) Nutt. subsp. virescens (Trin.) K. Richt. (=Piptatherum virescens (Trin.) Boiss.)
  29. Oryzopsis parviflora Nutt. (=Piptatheropsis pungens (Torr.) Romasch. et al.)
  30. Oryzopsis pubiflora Hack.
  31. Oryzopsis pungens (Torr.) Hitchc. (=Piptatheropsis pungens (Torr.) Romasch. et al.)
  32. Oryzopsis purpurascens Hack. ex Paulsen (=Piptatherum purpurascens (Hack. ex Paulsen) Roshev.)
  33. Oryzopsis racemosa (Sm.) Ricker ex Hitchc. (=Patis racemosa (Sm.) Romasch. et al.)
  34. Oryzopsis rigida (R. Lesson ex A. Rich.) Zotov
  35. Oryzopsis songarica (Trin. & Rupr.) B. Fedtsch. (=Piptatherum songaricum (Trin. & Rupr.) Roshev. ex Nikitina)
  36. Oryzopsis spp.
  37. Oryzopsis virescens (Trin.) Beck (=Piptatherum virescens (Trin.) Boiss.)


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The International Livestock research Institute (ILRI) maintains a collection of forage germplasm as a global public good. The material was acquired prior to the entry into force of the Convention on Biological Diversity; or if it was acquired after the entering into force of the Convention on Biological Diversity, it was obtained with the understanding that it was held in trust and could be made available for any agricultural research, breeding and training purposes under the terms and conditions set out in the agreement between the ILRI and FAO dated 26 October 1994. On 16 October 2006, ILRI signed an agreement with the Governing Body of the International Treaty on Plant Genetic Resources for Food and Agriculture (the Treaty) placing these in trust collections of Plant Genetic Resources for Food and Agriculture (PGRFA) within the purview of the Treaty.

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