Northern Prairie Wildlife Research Center


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Wyoming Rare Plant Field Guide

Uinta Greenthread
Thelesperma pubescens

JPG -- Species Photo

GIF -- Distribution Map

Similar Species: T. caespitosum has glabrous leaf blades. Hymenopappus filifolius has long, cobwebby pubescence, scale-like pappus, and many flower heads per stem. Rayless Erigeron compositus specimens have hairlike pappus bristles and a single row of involucre bracts.
Flowering/Fruiting Period: July-August.
Distribution: Endemic to SW Wyoming (Sweetwater and Uinta Cos.) and NE Utah.
Habitat: Sparsely vegetated benches and ridges on coarse, cobbly soils of Bishop Conglomerate. Elev. 8100-8900 ft.
References: Dorn 1983, 1989 f; Marriott 1988 b; USDA Forest Service 1991.

U.S. Department of the Interior | U.S. Geological Survey
URL: http://www.npwrc.usgs.gov/resource/plants/wyplant/spec/thelpube.htm
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Page Last Modified: Saturday, 02-Feb-2013 06:55:19 EST
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