CPC Plant Profile: Uinta Greenthread
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Plant Profile

Uinta Greenthread (Thelesperma subnudum)

Thelesperma pubescence-Flowering Photo Credit: Sheryl Goodrich
Description
  • Global Rank: N/A
  • Legal Status: N/A
  • Family: Asteraceae
  • State: UT, WY
  • Nature Serve ID: 160132
  • Date Inducted in National Collection: 04/04/1991

Thelesperma pubescens is limited to the Bishop Formation and perhaps adjacent areas in Uinta land Sweetwater Counties, Wyoming. This species has been separated from T. caespitosum by pubescence of the leaves (Dorn 1972). With the discovery of mixed populations of plants with pubescent and glabrous leaves plants on the Tavaputs Plateau, the separation of the 2 taxa is perhaps tenuous. Difference in habitat indicates there might be features other than pubescence that might serve to separate these plants. Regardless of the taxonomic status of these plants, the distribution on the Ashley National Forest remains the same (USDA, 2006).

Participating Institutions
Updates
Nature Serve Biotics
  • 05/02/2017

Known from four Wyoming sites, all within an area of about 260 square km in southwestern Wyoming. Also reported from Utah, but no status information available from that state. Restricted entirely to soils of the Bishop Conglomerate. Take precautions to avoid negative impacts from oil and gas drilling in the area.

Wendy Yates
  • 01/01/2010

This plant occupies areas with a high amount of natural disturbance. In surveys conducted there has been little or no evidence of grazing. However, evidence of wild life is widespread within the habitat. but most of this use is apparently outside the g

Wendy Yates
  • 01/01/2010

Not Available

Wendy Yates
  • 01/01/2010

Not Available

Wendy Yates
  • 01/01/2010

Not Available

Wendy Yates
  • 01/01/2010

Not Available

Wendy Yates
  • 01/01/2010

Not Available

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Photos
Nomenclature
Taxon Thelesperma subnudum
Authority A. Gray
Family Asteraceae
CPC Number 6597
ITIS 38528
USDA THPU4
Common Names Uinta Greenthread | sand fringedpod | Navajo-tea | low greenthread | hairy greenthread | Navajo tea
Associated Scientific Names Thelesperma pubescens | Thelesperma subnudum | Thelesperma subnudum var. subnudum | Thelesperma subnudum var. marginatum | Thelesperma marginatum | Thelesperma caespitosum | Thelesperma subnudum var. caespitosum | Thelesperma subnudum var. alpinum | Thelesperma windhamii | Thelesperma pubescens var. caespitosum | Thelesperma pubescens var. pubescens | Thelesperma subnudum var. pubescens
Distribution Thelesperma pubescens has been found in the extreme northeast corner of the Flaming Gorge National Recreation area in the town of Green River, Wyoming (Fertig 1995), and from the head of the Antelope
State Rank
State State Rank
Utah S1
Wyoming S1
Habitat

This plant occurs on the Badlands of Green River and Uinta Formations. In 1995 surveys were conducted by Fertig. Surveys took place in the Green River and Wyoming areas. Surveys by Forest Service and other botanists have also been conducted and additional populations have been found in the Bad Land Cliffs. The populations in Indian Canyon, Duchesne County are known only by a few collections where extensive survey has not been conducted (USDA, 2006).

Ecological Relationships

Not Available

Pollinators
Common Name Name in Text Association Type Source InteractionID
Bees
Bees Confirmed Pollinator Link
Butterflies & Moths
Butterflies Confirmed Pollinator Link
Flies
Robber flies Robber flies Confirmed Pollinator Link

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