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Plant Profile

Clay Reed-mustard (Hesperidanthus argillaceus)

Flowers of Schoenocrambe argillacea Photo Credit: J.S. Peterson

Global Rank: G1 - Critically Imperiled
Legal Status: Federally Threatened
Family: Brassicaceae
State: UT
Nature Serve ID: 129144
Lifeform: Forb/herb
Date Inducted in National Collection:

Description:

Schoenocrambe argillacea is endemic to a small area in the Uintah Basin, Uintah County, Utah. There are 3 known populations with fewer than 10,000 individuals total. It is a listed threatened species. S. argillacea is an herbaceous perennial and is distinct in having linear to narrowly oblong sessile cauline leaves. Its leaves are fleshy with a white waxy surface. It has stems 1.5 dm tall and the flowers are pale lavender to whitish with conspicuous purple veins. It blooms in late April and early May.

Where is Clay Reed-mustard (Hesperidanthus argillaceus) located in the wild?

Habitat:

Desert shrub community often on clay soils rich in gypsum.

Distribution:

Uintah County, Utah

States & Provinces:

Clay Reed-mustard can be found in Utah

Which CPC Partners conserve Clay Reed-mustard (Hesperidanthus argillaceus)?

Red Butte Garden and Arboretum

Not Sponsored

Assigned 06/09/17

CPC's Plant Sponsorship Program provides long term stewardship of rare plants in our National Collection. We are so grateful for all our donors who have made the Plant Sponsorship Program so successful. We are in the process of acknowledging all our wonderful plant sponsorship donors on our website. This is a work in progress and will be updated regularly.

Conservation Actions

09/15/2020

U.S. Fish and Wildlife Service, Ecological services Division, and Bureau Land Management are conducting a Schoenocrambe/Glaucocarpum phylogenetic study. They are researching its taxonomy.

Nature Serve Biotics

05/02/2017

Endemic to a small area in the Uinta Basin, Uintah County, Utah. There are 6-7 mapped occurrences clustered in 3 ""populations,"" with fewer than 10,000 individuals in total.The species is threatened by renewed intense oil and gas exploration and development in the Basin; in addition, its entire range is underlain by oil shale, the mining of which is a significant potential threat.

Rita Dodge, Heidi Simper

01/01/2010

Oil and gas exploration and development in the Basin Entire range underline by oil shale so mining is a significant potential threat Trampling by livestock

Rita Dodge, Heidi Simper

01/01/2010

Fewer than 10,000 individuals

Rita Dodge, Heidi Simper

01/01/2010

U.S. Fish and Wildlife Service, Ecological services Division, and Bureau Land Management are conducting a Schoenocrambe/Glaucocarpum phylogenetic study. They are researching its taxonomy.

Rita Dodge, Heidi Simper

01/01/2010

Unknown

Rita Dodge, Heidi Simper

01/01/2010

Ex situ seed conservation Propagation research Habitat protection Reintroduction research Continued monitoring

Rita Dodge, Heidi Simper

01/01/2010

Seed conservation Propagation research Reintroduction research