|Barneby reed-mustard, Barneby thelypody, Sye's Butte plainsmustard|
|(Welsh & Atwood) Rollins|
The following Participating Institutions are custodians for this species in the CPC National Collection:
Red Butte Garden and Arboretum
The conservation of Schoenocrambe barnebyi is fully sponsored.
Sylvia Torti contributed to this Plant Profile.
This species was listed as Federally Endangered in 1992, and since that time the number of plants in the two remaining populations has increased from approximately 1,000 plants to a little over 2,000 plants (USFWS 1992; Clark and Groebner 2000).
Barneby's reed mustard is a perennial herbaceous plant found only in south-central Utah. Plants are 10-25 cm tall with smooth stems. Flowers are produces from late April to mid-June, produces on racemes that contain 2-28 flowers each. The sepals of these flowers are green to violet, with papery margins. The flowers themselves are whit to lavender, with conspicuous purplish veins. This species is in the Brassicaceae family, and it produces seed pods called siliques. (Clark and Groebner 2000)
Distribution & Occurrence
This species grows on red clay soils rich in selenium and gypsum, overlain with sandstone talus at elevations between 1646-1753 meters. Populations are found on steep slopes, generally on northern exposures. Associated plant species are sagebrush, rabbitbush and Ephedra. (USFWS 1992)
|Only two known populations known, totaling approximately 2000 individuals. (Clark and Groebner 2000)|
Conservation, Ecology & Research
Foot traffic from visitors to Capitol Reef National Park
Franklin, B. 1996. Uinta Basin's Reed-Mustards. Sego Lily: Newsletter of the Utah Native Plant Society. 19
USFWS. 1991. Proposal to Determine Two Utah Plants, Schoenocrambe argillacea (clay reed-mustard) and Schoenocrambe barnebyi (Barneby reed-mustard), to be Endangered. Federal Register. 56, 71: 14910-14914.
USFWS. 1992. 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. Federal Register. 57: 1398-1403.