Piptochaetium

Piptochaetium, or speargrass,[3] is a genus of New World plants in the grass family, native to North and South America. Piptochaetium is a bunchgrass genus in the tribe Stipeae.[4][5][6][7][8]

Piptochaetium
Piptochaetium sp.
Scientific classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Monocots
Clade: Commelinids
Order: Poales
Family: Poaceae
Subfamily: Pooideae
Supertribe: Stipodae
Tribe: Stipeae
Genus: Piptochaetium
J.Presl
Type species
Piptochaetium setifolium
(syn of P. panicoides)
Synonyms[1][2]
  • Urachne subg. Piptochaetium (J. Presl) Trin. & Rupr.
  • Podopogon Raf., rejected name
  • Caryochloa Spreng. 1827, illegitimate homonym not Trin. 1826

Some of its species have been included in the genus Stipa by some authors.[9][10]

Species[2][11][12][13][14][15]
formerly included[2]

see Nassella Stipa

  • Piptochaetium collinum - Nassella laevissima
  • Piptochaetium gibbum - Nassella gibba
  • Piptochaetium laeve - Nassella pubiflora
  • Piptochaetium laevissimum - Nassella laevissima
  • Piptochaetium mexicanum - Nassella mexicana
  • Piptochaetium mucronatum - Nassella mucronata
  • Piptochaetium ovatum - Stipa ovata
  • Piptochaetium trichotomum - Nassella trichotoma

References
  1. Tropicos, Piptochaetium J. Presl
  2. Kew World Checklist of Selected Plant Families
  3. "Piptochaetium". Natural Resources Conservation Service PLANTS Database. USDA. Retrieved 6 October 2015.
  4. Clayton, W. D., et al. (2006 onwards). Piptochaetium. GrassBase - The Online World Grass Flora.
  5. Presl, Jan Svatopluk. 1830. Reliquiae Haenkeanae 1: 222 in Latin
  6. Presl, Jan Svatopluk. 1830. Reliquiae Haenkeanae 1: plate XXXVII (37), figures 1-7 at left line drawings of
  7. Mujica-Salles, J. & M. Marchi. 1993. Caracteres de valor taxonómico en el género Piptochaetium Presl (Poaceae-stipeae) y su relacion con la distribución de las especies brasileras. Candollea 48(1): 1–13
  8. Cialdella, A. M. & M. Arriaga. 1998. Revisión de las especies Sudamericanas del género Piptochaetium (Poaceae, Pooideae, Stipeae). Darwiniana 36(1–4): 107–157
  9. Cialdella, A. M. & L. M. Giussani. 2002. Phylogenetic relationships of the genus Piptochaetium (Poaceae, Pooideae, Stipeae): evidence from morphological data. Annals of the Missouri Botanical Garden 89(3): 305–336
  10. Swallen, J. R. 1955. Gramineae. In: P. C. Standley & J. A. Steyermark (eds.), Flora of Guatemala—Part II. Fieldiana, Botany 24(2): i–ix, 1–390
  11. Piptochaetium, North American species. USDA PLANTS Profile.
  12. Piptochaetium. Germplasm Resources Information Network.
  13. Biota of North America Program 2013 county distribution maps
  14. Skottsberg, C. 1951. A supplement to the pteridophytes and phanerogams of Juan Fernandez and Easter Island. 2(28): 763–792. In C. J. F. Skottsberg, Natural History of Juan Fernandez and Easter Island. Almquist & Wiksells, Uppsala
  15. Gould, F. W. & R. Moran. 1981. The grasses of Baja California, Mexico. Memoir San Diego Society of Natural History 12: 1–140

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