Clay reed-mustard (Schoenocrambe argillacea)

Federal Register | Recovery | Critical Habitat | Conservation Plans | Petitions | Life History

Listing Status:   

Where Listed: WHEREVER FOUND

General Information

A perennial herbaceous plant, with sparsely leafed stems 15 to 30 centimeters (cm) (6 to 12 inches) tall arising from a woody root crown. The leaves are very narrow with a smooth margin, 10 to 35 millimeters (mm) (0.4 to 1.4 inches) long and, usually, less than 2 mm (0.1 inch) wide. The leaf blades are alternately arranged on the stem and, for the most part, are attached directly to the stem without a petiole. The flowers of S. argillacea have petals that are pale lavender to whitish with prominent purple veins and measure 8 to 11 mm (0.3 to 0.4 inch) long and 3.5 to 4.5 mm (0.14 to 0.18 inch) wide. The entire flowers are about 1 cm (0.4 inch) across in full anthesis and are displayed in a raceme of 3 to 20 flowers at the end of the plantís leafy stems (Welsh and Atwood 1977, Rollins 1982, Welsh et al. 1987).

  • States/US Territories in which the Clay reed-mustard is known to or is believed to occur:  Utah
  • US Counties in which the Clay reed-mustard is known to or is believed to occur:  View All
 
Current Listing Status Summary
Status Date Listed Lead Region Where Listed
01/14/1992 Mountain-Prairie Region (Region 6)

» Federal Register Documents

Federal Register Documents
Date Citation Page Title
05/27/2016 81 FR 33698 33700 ETWP; Initiation of 5-Year Status Reviews of 21 Species in the Mountain-Prairie Region
01/14/1992 57 FR 1398 1403 ETWP; Final Rule to Determine the Plant Schoenocrambe argillacea, Clay Reed-Mustard, to be a Threatened Species, and the Plant Schoenocrambe barnebyi, Barneby Reed-Mustard, to be an Endangered Species
10/06/2008 73 FR 58261 58262 5-Year Reviews of Three Wildlife Species and Eight Plant Species in the Mountain-Prairie Region
04/12/1991 56 FR 14910 14914 ETWP; Two Utah Plants, Schoenocrambe argillacea (Clay Reed-Mustard) and Schoenocrambe barneby (Barneby Reed-Mustard), Proposed as Endangered; 56 FR 14910 14914
09/23/1993 58 FR 49522 49523 Availability of a Draft Recovery Plan for Three Utah Reed-Mustards; Clay Reed-Mustard (Schoenocrambe argillacea), Barnaby Reed-Mustard (Schoenocrambe barnebyi), and Shrubby Reed-Mustard (Schoenocrambe suffrutescens) for Review and Comment

» Recovery

Current Recovery Plan(s)
Date Title Plan Action Status Plan Status
09/14/1994 Utah Reed-Mustards (3 spp.) View Implementation Progress Final
Other Recovery Documents
Date Citation Page Title Document Type
05/27/2016 81 FR 33698 33700 ETWP; Initiation of 5-Year Status Reviews of 21 Species in the Mountain-Prairie Region
  • Notice 5-year Review, Initiation
09/23/1993 58 FR 49522 49523 Availability of a Draft Recovery Plan for Three Utah Reed-Mustards; Clay Reed-Mustard (Schoenocrambe argillacea), Barnaby Reed-Mustard (Schoenocrambe barnebyi), and Shrubby Reed-Mustard (Schoenocrambe suffrutescens) for Review and Comment
  • Notice Recovery Plan Avail.
10/06/2008 73 FR 58261 58262 5-Year Reviews of Three Wildlife Species and Eight Plant Species in the Mountain-Prairie Region
  • Notice 5-year Review, Initiation
Five Year Review
Date Title
07/11/2011 Schoenocrambe argillacea (clay reed-mustard) 5-Year Review

» Critical Habitat

No critical habitat rules have been published for the Clay reed-mustard.

» Conservation Plans

No conservation plans have been created for Clay reed-mustard.

» Petitions

» Life History

Habitat Requirements

Grows on clay soils rich in gypsum, overlain with sandstone talus, that are derived from a mixture of shales and sandstones from the zone of contact between the Uinta and Green River geologic formations. The species most commonly occurs on steep north-facing slopes.

Reproductive Strategy

Flowering occurs from April to May and fruiting occurs May to June. Reproduction is sexual.

» Other Resources

NatureServe Explorer Species Reports -- NatureServe Explorer is a source for authoritative conservation information on more than 50,000 plants, animals and ecological communtities of the U.S and Canada. NatureServe Explorer provides in-depth information on rare and endangered species, but includes common plants and animals too. NatureServe Explorer is a product of NatureServe in collaboration with the Natural Heritage Network.

ITIS Reports -- ITIS (the Integrated Taxonomic Information System) is a source for authoritative taxonomic information on plants, animals, fungi, and microbes of North America and the world.

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