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  • Species Profile for Barneby ridge-cress (Lepidium barnebyanum)
Map of Species occurrence
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Barneby ridge-cress (Lepidium barnebyanum)

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

Listing Status:   


General Information

A perennial, herbaceous plant in the mustard family (Brassicaceae). It is approximately 5 to 15 centimeters (cm) (2 to 6 in.) tall and usually forms raised clumps or cushions (pulvinate growth form) up to 20 cm (8 in.) wide. The species arises from a deep woody taproot; its stems are smooth and hairless with narrow leaves clustering at the base of the plant. The species cream-colored flowers are about 5 to 7 millimeters (mm) (0.25 in.) across and alternate along a stem rising 2.5 to 6 cm (1 to 2.5 in.) above the base of the plant. The flowers begin to bloom in early May. Seeds are quite small, about 1 mm (0.04 in.) across, and are borne in elliptical seed pods called silicles, which are about 4 to 5 mm (0.2 in.) long. The seeds are shed beginning in June and continuing into July (Reveal 1967; Welsh and Reveal 1977; Welsh et al. 1987)

Current Listing Status Summary
Status Date Listed Lead Region Where Listed
09/28/1990 Mountain-Prairie Region (Region 6)

» Federal Register Documents

Federal Register Documents
Date Citation Page Title
11/27/1989 54 FR 48781 48784 ETWP; Proposal to Determine Lepidium barnebyanum (Barneby's Ridge-cress) to be an Endangered Species; 54 FR 48781 48784
10/06/2008 73 FR 58261 58262 5-Year Reviews of Three Wildlife Species and Eight Plant Species in the Mountain-Prairie Region
09/28/1990 55 FR 39860 39864 ETWP; Endangered Status for the Plant Lepidium barnebyanum (Barneby Ridge- cress); 55 FR 39860 39864

» Recovery

Current Recovery Plan(s)
Date Title Plan Action Status Plan Status
07/23/1993 Barneby Ridge-cress View Implementation Progress Final
Other Recovery Documents
Date Citation Page Title Document Type
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
08/04/2011 Lepidium barnebyanum (Barneby ridge-cress) 5-Year Review

» Critical Habitat

No critical habitat rules have been published for the Barneby ridge-cress.

» Conservation Plans

No conservation plans have been created for Barneby ridge-cress

» Petitions

» Life History

Habitat Requirements

The species habitat occurs at an elevation of 6,200 to 6,500 feet on poorly developed soils derived from marly shales in a zone of interbedding geologic strata from the Uinta and Green River Formations (Reveal 1967; Welsh and Reveal 1977; Welsh 1978; Welsh et al. 1987; U.S. Fish and Wildlife Service 1989).

Reproductive Strategy

Reproduction is sexual, with flowering occuring from April to May and fruiting occurs May to June. The specific pollination mechanism and vectors are not known.

» 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.

FWS Digital Media Library -- The U.S. Fish and Wildlife Service's National Digital Library is a searchable collection of selected images, historical artifacts, audio clips, publications, and video.