Eastern Mojave Vegetation Distribution of Frasera albomarginata in Cochise County, Arizona  
 

 

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  Distribution, Arizona, Cochise County
Map Prepared 25-Jan-08.

Kearney and Peebles (1960) Flora of Arizona states the species occurs near Johnson, at elevations of 4,500 to 7,000 ft., and there is a small cluster of three collections from southeastern Arizona, near Benson.

Two of the three collections appear to have been made close-by to each other, at locations described as "near Johnson," and "in the foothills of the Little Dragoon Mountains." Both of these locations are on the southeast side of the Little Dragoon Mountains. R. A. Darrow collected Frasera albomarginata (#3451, 3 May 1946) 3 miles north of Johnson, on alluvial soil from limestone ridge, with associated mesquite. R. K. Van Devender and W. D. Peachey collected (#93-618, 5 May 1993) in the foothills of Little Dragoon Mountains, about 3.2 mi from pavement at Johnson Road exit of I-10, beyond Arimetco mine pit, where it was described as abundant along disturbed roadside in overgrazed grassland.

The third location is described by the collectors as locally common in desert scrub about 7 miles southwest Hookers Hot Springs. However, the geographic coordinates and the Public Land Survey System descriptions given for this location are about 10 miles south-southeast of Hookers Hot Springs. This location is also about 10 miles northwest of Johnson. There are few named landmarks in this area, except for Tres Alamos Wash which drains this area.

Regardless of the proximity of the three collections, this cluster is located about 220 miles (335 km) from the nearest other collections at Petrified Forest National Park.

Article records that use this photograph:

  • Autecology of Desert Elkweed Frasera albomarginata S. Watson (Syn: Swertia a.) Gentianaceae in the American Southwest: in southeastern Arizona.

Other photos about Frasera albomarginata or Distribution.

 


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Date and time this page was prepared: 8/2/2020 9:35:52 AM