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Species of Oryzopsis Michx.

All
Accepted Names
Exclude infraspecific names

NameAccepted Nameai
Oryzopsis spp. a 
Oryzopsis aequiglumis Duthie ex Hook. f. Piptatherum aequiglume (Duthie ex Hook. f.) Roshev.  i
Oryzopsis asperifolia Michx.  a 
Oryzopsis bicolor var. minor Speg. Piptochaetium bicolor (Vahl) E. Desv. var. minor (Speg.) Parodi  i
Oryzopsis bloomeri (Bol.) Ricker ex Piper Achnatherum bloomeri (Bol.) Barkworth   
Oryzopsis caduca Beal ×Achnella caduca (Beal) Barkworth   
Oryzopsis canadensis (Poir.) Torr.  a 
Oryzopsis coerulescens (Desf.) Hack. Piptatherum coerulescens (Desf.) P. Beauv.  i
Oryzopsis contracta (B. L. Johnson) Schechter Achnatherum contractum (B. L. Johnson) Barkworth   
Oryzopsis exigua Thurb.  a 
Oryzopsis gracilis (Mez) Pilg. Piptatherum gracile Mez   
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 var. contracta B. L. Johnson Achnatherum contractum (B. L. Johnson) Barkworth  i
Oryzopsis lateralis (Munro ex Regel) Stapf Piptatherum laterale (Munro ex Regel) Roshev.   
Oryzopsis lejopoda Speg. Piptochaetium lejopodum (Speg.) Henrard   
Oryzopsis micrantha (Trin. & Rupr.) Thurb. Piptatherum micranthum (Trin. & Rupr.) Barkworth   
Oryzopsis microcarpa Pilg. Piptatherum microcarpum (Pilg.) Tzvelev   
Oryzopsis miliacea  a 
Oryzopsis miliacea (L.) Benth. & Hook. f. ex Asch. & Schweinf. Piptatherum miliaceum (L.) Coss.  i
Oryzopsis molinioides (Boiss.) Hack. ex Paulsen Piptatherum molinioides Boiss.   
Oryzopsis munroi Stapf Piptatherum munroi (Stapf) Mez   
Oryzopsis paradoxa (L.) Nutt. Piptatherum paradoxum (L.) P. Beauv.   
Oryzopsis paradoxa (L.) Nutt. subsp. virescens (Trin.) K. Richt. Piptatherum virescens (Trin.) Boiss.  i
Oryzopsis pubiflora Hack.  a 
Oryzopsis pungens (Torr.) Hitchc.  a 
Oryzopsis purpurascens Hack. ex Paulsen Piptatherum purpurascens (Hack. ex Paulsen) Roshev.   
Oryzopsis racemosa (Sm.) Ricker ex Hitchc. Piptatherum racemosum (Sm.) Eaton  i
Oryzopsis rigida (R. Lesson ex A. Rich.) Zotov  a 
Oryzopsis songarica (Trin. & Rupr.) B. Fedtsch. Piptatherum songaricum (Trin. & Rupr.) Roshev. ex Nikitina   
Oryzopsis sp  a 
Oryzopsis virescens (Trin.) Beck Piptatherum virescens (Trin.) Boiss.   
  1. Oryzopsis aequiglumis Duthie ex Hook. f. (=Piptatherum aequiglume (Duthie ex Hook. f.) Roshev.)
  2. Oryzopsis asperifolia Michx.
  3. Oryzopsis bicolor var. minor Speg. (=Piptochaetium bicolor (Vahl) E. Desv. var. minor (Speg.) Parodi)
  4. Oryzopsis bloomeri (Bol.) Ricker ex Piper (=Achnatherum bloomeri (Bol.) Barkworth)
  5. Oryzopsis caduca Beal (=×Achnella caduca (Beal) Barkworth)
  6. Oryzopsis canadensis (Poir.) Torr.
  7. Oryzopsis coerulescens (Desf.) Hack. (=Piptatherum coerulescens (Desf.) P. Beauv.)
  8. Oryzopsis contracta (B. L. Johnson) Schechter (=Achnatherum contractum (B. L. Johnson) Barkworth)
  9. Oryzopsis exigua Thurb.
  10. Oryzopsis gracilis (Mez) Pilg. (=Piptatherum gracile Mez)
  11. Oryzopsis holciformis (M. Bieb.) Hack. (=Piptatherum holciforme (M. Bieb.) Roem. & Schult.)
  12. Oryzopsis hymenoides (Roem. & Schult.) Ricker ex Piper (=Achnatherum hymenoides (Roem. & Schult.) Barkworth)
  13. Oryzopsis hymenoides (Roem. & Schult.) Ricker ex Piper var. contracta B. L. Johnson (=Achnatherum contractum (B. L. Johnson) Barkworth)
  14. Oryzopsis lateralis (Munro ex Regel) Stapf (=Piptatherum laterale (Munro ex Regel) Roshev.)
  15. Oryzopsis lejopoda Speg. (=Piptochaetium lejopodum (Speg.) Henrard)
  16. Oryzopsis micrantha (Trin. & Rupr.) Thurb. (=Piptatherum micranthum (Trin. & Rupr.) Barkworth)
  17. Oryzopsis microcarpa Pilg. (=Piptatherum microcarpum (Pilg.) Tzvelev)
  18. Oryzopsis miliacea (L.) Benth. & Hook. f. ex Asch. & Schweinf. (=Piptatherum miliaceum (L.) Coss.)
  19. Oryzopsis miliacea
  20. Oryzopsis molinioides (Boiss.) Hack. ex Paulsen (=Piptatherum molinioides Boiss.)
  21. Oryzopsis munroi Stapf (=Piptatherum munroi (Stapf) Mez)
  22. Oryzopsis paradoxa (L.) Nutt. (=Piptatherum paradoxum (L.) P. Beauv.)
  23. Oryzopsis paradoxa (L.) Nutt. subsp. virescens (Trin.) K. Richt. (=Piptatherum virescens (Trin.) Boiss.)
  24. Oryzopsis pubiflora Hack.
  25. Oryzopsis pungens (Torr.) Hitchc.
  26. Oryzopsis purpurascens Hack. ex Paulsen (=Piptatherum purpurascens (Hack. ex Paulsen) Roshev.)
  27. Oryzopsis racemosa (Sm.) Ricker ex Hitchc. (=Piptatherum racemosum (Sm.) Eaton)
  28. Oryzopsis rigida (R. Lesson ex A. Rich.) Zotov
  29. Oryzopsis songarica (Trin. & Rupr.) B. Fedtsch. (=Piptatherum songaricum (Trin. & Rupr.) Roshev. ex Nikitina)
  30. Oryzopsis sp
  31. Oryzopsis spp.
  32. Oryzopsis virescens (Trin.) Beck (=Piptatherum virescens (Trin.) Boiss.)


NGBT Plant Germplasm System Distribution Policy

Plant germplasm is distributed to scientists, educators, producers and other bona fide research and education entities from National genebank of Tunisia active collection sites. The NGBT Curator and/or Research Leader will, in accordance with current NPGS policies and procedures, determine the legitimacy of a request when necessary.

Distributions to fulfill requests for repatriation of subsamples of germplasm collections to a country or community of origin, especially following natural or man-made catastrophes, are considered a high priority.

Although distributions for research, education, and repatriation are of the highest priority, the NPGS also encourages various seed-saver organizations and public gardens to conduct germplasm conservation activities that engage many individuals and groups throughout the country. Elements of the NPGS cooperate with seed-saver organizations and public gardens and may store germplasm for and distribute germplasm to such organizations.

Distribution of germplasm from NPGS collections to fulfill requests from individuals seeking free germplasm strictly for home use is generally considered an inappropriate use of limited resources and conflicts with U.S. Government policy of not competing with commercial enterprises. Requestors can be asked, in an appropriate manner, to justify the use of specific NPGS germplasm instead of suitable commercially available germplasm.

Accessions listed in the Germplasm Resources Information Network (GRIN) database as “not available” due to insufficient or low viability seed and/or scheduled for regeneration will generally not be available for distribution.

Other accessions are listed in GRIN as “not available” because they are not a part of the NPGS collection per se, but are conserved in NPGS genebanks to meet specific needs as described later in the section entitled “Categories of Germplasm Distributed and Availability.” In this category are certain accessions of improved germplasm that are only available from the owner/developer. Other accessions require that specific conditions be met by the requestor before distribution is possible.

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