Tristagma

Tristagma is a genus of South American plants in the onion subfamily with the Amaryllis family.[3] It is native to South America (Peru, Argentina, Chile and Uruguay) but one of the species (T. uniflorum) has become naturalized in various other places.[1][4]

Species[1]
  1. Tristagma ameghinoi (Speg.) Speg. - Mendoza + Santa Cruz Provinces of Argentina
  2. Tristagma anemophilum Ravenna - Neuquén Province of Argentina
  3. Tristagma atreucoense Ravenna - Neuquén Province of Argentina
  4. Tristagma bivalve (Hook. ex Lindl.) Traub - central Chile
  5. Tristagma brevipes (Kuntze) Traub - central Chile
  6. Tristagma circinatum (Sandwith) Traub - Neuquén Province of Argentina
  7. Tristagma fragrans Ravenna - central Chile
  8. Tristagma gracile (Phil.) Traub - central Chile
  9. Tristagma graminifolium (Phil.) Ravenna - central Chile
  10. Tristagma leichtlinii (Baker) Traub - central Chile
  11. Tristagma lineatum Ravenna - Santiago Region of Chile
  12. Tristagma lomarum Ravenna - Arequipa Region of Peru
  13. Tristagma malalhuense Ravenna - Mendoza Province of Argentina
  14. Tristagma mirabile Ravenna - Neuquén Province of Argentina
  15. Tristagma nahuelhuapinum Ravenna - Rio Negro Province of Argentina
  16. Tristagma nivale Poepp. - central + southern Chile, southern Argentina
  17. Tristagma patagonicum (Baker) Traub - southern Argentina
  18. Tristagma peregrinans Ravenna - Uruguay
  19. Tristagma philippii Gand. - central Chile
  20. Tristagma poeppigianum (Gay) Traub - central Chile
  21. Tristagma porrifolium (Poepp.) Traub - central Chile
  22. Tristagma sessile (Phil.) Traub - Chaco Province of Argentina, central Chile, Uruguay
  23. Tristagma sociale Ravenna - Mendoza Province of Argentina
  24. Tristagma staminosum Ravenna - O'Higgins Region of Chile
  25. Tristagma tweedieanum (Baker) Traub - Uruguay, northeastern Argentina
  26. Tristagma uniflorum (Lindl.) Traub - Uruguay, eastern Argentina; naturalized in Great Britain, France, Australia, New Zealand, Oregon, California, southeastern United States (from Texas to Maryland)
  27. Tristagma yauriense Ravenna - Puno Province of Peru
formerly included[1]

Tristagma
Tristagama patagonicum
Scientific classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Monocots
Order: Asparagales
Family: Amaryllidaceae
Subfamily: Allioideae
Tribe: Gilliesieae
Genus: Tristagma
Poepp.
Type species
Tristagma nivale
Synonyms[1]
  • Gardinia Bertero, not validly published
  • Ipheion Raf.
  • Steinmannia Phil. 1884, illegitimate homonym not Opiz 1852 (Polygonaceae)[2]
  • Garaventia Looser

Several names have been coined using the name Tristagma but referring to species now considered better suited other genera (Beauverdia, Leucocoryne, and Nothoscordum).

  • Tristagma dimorphopetalum - Leucocoryne dimorphopetala
  • Tristagma felipponei - Beauverdia sellowiana
  • Tristagma hirtellum - Beauverdia hirtella
  • Tristagma lloydiiflorum - Beauverdia vittata
  • Tristagma lorentzii - Beauverdia lorentzii
  • Tristagma narcissoides - Leucocoryne coronata
  • Tristagma sellowianum - Beauverdia sellowiana
  • Tristagma setaceum - Nothoscordum setaceum
  • Tristagma subbiflorum - Nothoscordum bivalve
  • Tristagma vittatum - Beauverdia vittata

References
  1. Kew World Checklist of Selected Plant Families, genus Tristagma
  2. The International Plant Names Index, search for Steinmannia
  3. Poeppig, Eduard Friedrich. Fragmentum Synopseos Plantarum Phanerogamum 8 (1833).
  4. Biota of North America Program 2013 county distribution map

Bibliography
  • Sassone, Agostina B.; Giussani, Liliana M.; Guaglianone, Encarnación Rosa (30 April 2013). "Multivariate studies of Ipheion (Amaryllidaceae, Allioideae) and related genera". Plant Systematics and Evolution. 299 (8): 1561–1575. doi:10.1007/s00606-013-0819-5.
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