Purshia mexicana

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Purshia mexicana
Scientific classification
Kingdom:
Plantae
(unranked):
Angiosperms
(unranked):
Eudicots
(unranked):
Rosids
Order:
Rosales
Family:
Rosaceae
Subfamily:
Dryadoideae
Genus:
Purshia
Species:
P. mexicana
Binomial name
Purshia mexicana
(D.Don), Henrickson
File:Purshia mexicana range map.jpg
Natural range
Synonyms

Cowania mexicana

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Purshia mexicana is a species of perennial flowering small tree in the rose family known by the common name Mexican cliffrose. It is native to western-northern Mexico, the region of the Sierra Madre Occidental cordillera.

A different phase which was published as var. stansburyana (but should have been stansburiana) and which is now treated as Purshia stansburyana occurs in the southwestern United States, centered on the Colorado Plateau regions of Utah–Colorado, and Arizona–New Mexico; also much of the Great Basin mountains to the west.[1]

In its mostly mountainous, or higher elevation habitat, it grows in woodlands, desert, and plateau habitat.

Stenophyllanin A, a tannin, can be found in P. mexicana.[2]

Distribution

The range of Mexican Cliffrose is from the western Mexican Plateau in the south, and the southern Sierra Madre Occidental cordillera north to a small region of northwest Sonora;[3] it has a continuous range in the cordillera from Chihuahua south through Durango and Zacatecas, all mostly north of the Trans-Mexican Volcanic Belt, though a few scattered locales do occur in the belt.[4]

In the United States, the range is centered on the Colorado Plateau mostly of central and southern Utah, central and northern Arizona, the entire desert and rock-formation Canyon Lands region; the range continues east into southwest Colorado and neighboring western New Mexico.[5]

The range continues westwards into the Great Basin desert regions, and southwest into the Mojave Desert including eastern California; scattered locales occur in central New Mexico, and possibly central Baja California.[6]

References

  1. ↑ Little, Atlas of United States Trees, Volume 3, Minor Western Hardwoods, Map 55-SW, Map 55-N, Cowania mexicana.
  2. ↑ Anti-tumor promoting activity of polyphenols from Cowania mexicana and Coleogyne ramosissima. Hideyuki Ito, Masateru Miyake, Eisei Nishitani, Kazuko Mori, Tsutomu Hatano, Takuo Okuda, Takao Konoshima, Midori Takasaki, Mutsuo Kozuka, Teruo Mukainaka, Harukuni Tokuda, Hoyoku Nishino and Takashi Yoshida, Cancer Letters, Volume 143, Issue 1, 23 August 1999, Pages 5-13, doi:10.1016/S0304-3835(99)00160-3
  3. ↑ Little, Map 55-SW, Map 55-N, Cowania mexicana.
  4. ↑ Little, Map 55-SW, Map 55-N, Cowania mexicana.
  5. ↑ Little, Map 55-SW, Map 55-N, Cowania mexicana.
  6. ↑ Little, Map 55-SW, Map 55-N, Cowania mexicana.

Further reading

  • Little. Atlas of United States Trees, Volume 3, Minor Western Hardwoods, Little, Elbert L, 1976, US Government Printing Office. Library of Congress No. 79-653298. Map 55-SW, Map 55-N, Cowania mexicana.
  • Cronquist, A., N.H. Holmgren and P.K. Holmgren and A. Cronquist. 1997. Intermountain flora: Vascular plants of the Intermountain West, U.S.A. Vol. 3A, Subclass Rosidae (except Fabales). Bronx, New York: The New York Botanical Garden. 446 pp.

External links


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