Eastern Mojave Vegetation Petrified Forest National Park, Apache County, Arizona.

Query: G.N.I.S.

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Named for the petrified trees when the park was created in 1906 to stop vandalism. Lieutenant Lorenzo Sitgreares reported the existence of the petrified trees in 1851 and Lieutant Amiel W. Whipple called the area Lithodendron Park in 1853.

On US Interstate 40, east of Holbrook, Arizona.

Elevation: 5436ft, 1657m.

Articles that refer to this location:


Literature Referring To This Location:

  • Ash, S. R. 1987. Petrified Forest National Park, Arizona. Centennial Field Guide. Rocky Mountain Section of the Geological Society of America. 2: 405-410. {TAS-pdf}
  • Post, Douglas M. 1956. Studies in the Gentianaceae: Frasera and Swertia of North America. Ph.D. dissertation. University of California, Berkeley. 1956..

Species collected at or near this location.

This list summarizes plants collected or observed at this specific, named location. It does not include plants collected or observed at nearby named or unnamed locations. It may be more instructive to use the Area Lists that contain this location.

  • TAS – The plant was collected by Tom Schweich.
  • Oth – The plant was collected by someone, but not Tom.
  • Obs – The plant was observed, but not collected.


Frasera albomarginata S. Watson. (Oth)

Total number of taxa: 1
Native Taxa:
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Exotic Taxa:
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Nativity Undetermined:
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Listed Weeds:
Identified as Weed
If you have a question or a comment you may write to me at: tas4@schweich.com I sometimes post interesting questions in my FAQ, but I never disclose your full name or address.  

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Date and time this article was prepared:11:49:31 AM, 6/6/2024.