Texas Bluegrass

Poa arachnifera, the Texas bluegrass, is a species of grass. It is a dioecious perennial plant, native to the southern Great Plains of the United States.^[1]

Hybridization with Kentucky bluegrass

During the 1990s, botanists began experimenting with producing hybrids of Texas bluegrass and Kentucky bluegrass (Poa pratensis) for use as wintering foraging plant for grazing livestock and as a drought-resistant lawn grass. The hybrids appear similar to Kentucky bluegrass, but maintain their green color in higher temperatures.^[2] Seed manufacturers began marketing the first of these hybrids, often termed "heat-tolerant bluegrasses", in the first decade of the 21st century.

References

Poa arachnifera, llamada comúnmente pasto azul de Texas, es una especie de gramínea.

Hibridación con el pasto azul de Kentucky

En los 1990s, se comienza a experimentar con la producción de híbridos entre esta especie y Poa pratensis para obtener un pasto resistente a la sequía. El primer híbrido obtenido se comercializa como "pasto azul tolerante al calor,", ya en este siglo XXI.

Ejemplos de cultivares comerciales, en 2007, son:

• Thermal Blue (Cía. Scotts)
• Solar Green (Cía. Scotts)
• Fahrenheit 90

Taxonomía

Poa arachnifera fue descrita por (L.) Torr. y publicado en Exploration of the Red River of Louisiana 301. 1853.^[1]​

Sinonimia

• Poa arachnifera var. glabrata Vasey
• Poa densiflora Buckley
• Poa glabrescens Nash^[2]​

Referencias

• European Poa Database
• Arroyo, M.T.K., C.P. von Bohlen, L. Cavieres & C. Marticorena. 1992. Survey of the flora of Torres del Paine National Park, Chile. Gayana Botánica. 49(1-4):47-70.
• Boelcke, O., D.M. Moore & F.A. Roig (Eds.). 1985. Transecta Botánica de la Patagonia Austral. Consejo Nacional de Investigación Científica y Técnicas (Argentina). Buenos Aires. XXVIII, 733 pp.

Bibliografía

1. Anonymous. 1986. List-Based Rec., Soil Conserv. Serv., U.S.D.A. Database of the U.S.D.A., Beltsville.
2. Correll, D. S. & M. C. Johnston. 1970. Man. Vasc. Pl. Texas i–xv, 1–1881. The University of Texas at Dallas, Richardson.
3. Darke, R. 1999. Color Encycl. Ornam. Grasses 1–325. Timber Press, Portland.
4. Great Plains Flora Association. 1986. Fl. Great Plains i–vii, 1–1392. University Press of Kansas, Lawrence.
5. Hitchcock, A. S. 1951. Man. Grasses U.S. (ed. 2) 1–1051. U.S. Department of Agriculture, Washington, D.C.
6. Radford, A. E., H. E. Ahles & C. R. Bell. 1968. Man. Vasc. Fl. Carolinas i–lxi, 1–1183. University of North Carolina Press, Chapel Hill.
7. Small, J. K. 1933. Man. S.E. Fl. i–xxii, 1–1554. Published by the Author, New York.
8. Soreng, R. J. 1985. Poa in New Mexico, with a key to middle and southern Rocky Mountain species (Poaceae). Great Basin Naturalist 45: 395–422.
9. Soreng, R. J., G. Davidse, P. M. Peterson, F. O. Zuloaga, E. J. Judziewicz, T. S. Filgueiras & O. Morrone. 2003 and onwards. On-line taxonomic novelties and updates, distributional additions and corrections, and editorial changes since the four published volumes of the Catalogue of New World Grasses (Poaceae) published in Contr. U.S. Natl. Herb. vols. 39, 41, 46, and 48. http://www.tropicos.org/Project/CNWG:. In R. J. Soreng, G. Davidse, P. M. Peterson, F. O. Zuloaga, T. S. Filgueiras, E. J. Judziewicz & O. Morrone Internet Cat. New World Grasses. Missouri Botanical Garden, St. Louis.
10. Soreng, R. J., L. M. Giussani & M. A. Negritto. 2003. Poa. In Catalogue of New World Grasses (Poaceae): IV. Subfamily Pooideae. Contr. U.S. Natl. Herb. 48: 505–580.
11. Vickery, J. W. 1970. A taxonomic study of the genus Poa L. in Australia. Contr. New South Wales Natl. Herb. 4: 145–243.
12. Wunderlin, R. P. 1998. Guide Vasc. Pl. Florida i–x, 1–806. University Press of Florida, Gainseville.

Poa arachnifera est une plante herbacée de la famille des Poacées. Elle a été décrite la première fois en 1853 par John Torrey. C'est une plante de 85 cm de haut, avec des feuilles simples et alternes présentant des nervures parallèles. Elle fleurit de mars à mai pour présenter des fleurs en panicules. On la rencontre sur des sols secs et frais en Amérique du Nord.

Liste des variétés

Selon Tropicos (26 octobre 2017)^[2] :

• variété Poa arachnifera var. glabrata Vasey ex Beal

Notes et références

Poa arachnifera là một loài cỏ trong họ hòa thảo, thuộc chi poa.^[1]

Chú thích

Tham khảo

• Wikispecies có thông tin sinh học về Poa arachnifera

  
  

  Bài viết chủ đề tông thực vật Poeae này vẫn còn sơ khai. Bạn có thể giúp Wikipedia bằng cách mở rộng nội dung để bài được hoàn chỉnh hơn.

  • x
  • t
  • s