Eastern Mojave Vegetation Coll. No. 3489, Amaranthus powellii.  
 

 

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If you have a question or a comment about this photograph you may write to me at: tomas@schweich.com I sometimes post interesting questions in my FAQ, but I never disclose your full name or address. 		  Amaranthaceae, Amaranthus powellii
Photographed 9 November 2025.

Plants of Colorado
East Slope of Tarryall Mountains, Jefferson County
Amaranthaceae

Amaranthus powellii S. Watson.  Powell's Pigweed.

North Twin Creek, Jefferson County, Colorado. East slope of Tarryall Mountains, small ridge above Forest Road 211 and North Twin Creek, along a horse or cow trail, 11.3 km. (geodesic) southwest of Deckers. 39.2102°N, 105.34408°W. WGS 1984 Elev. 2461 m. In grus with Pseudotsuga menziesii, Artemisia frigida, A. ludoviciana var. incompta, Ribes cereum, and Cercocarpus montanus.

Collected by permit: Pike San Isabel National Forest, 2025, issued: Mar 26, 2025, to: Tom Schweich.

Tom Schweich 3489. 18-Aug-2025

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Date and time this page was prepared: 4/4/2026 8:04:19 PM