Slickspot peppergrass (Lepidium papilliferum)
Where Listed: WHEREVER FOUND
Slickspot peppergrass is a tap-rooted, intricately-branched plant. The plant flowers once and then dies (it is monocarpic), and displays two different life cycles, an annual and a biennial form. The plant averages 2 to 8 inches, but can reach up to 16 inches in height. Leaves and stems are covered with fine, soft hairs, and the leaves are divided into linear segments. Flowers are numerous, 0.1 inches diameter, white, and 4-petalled. Fruits (siliques) are 0.1 inches, round in outline, flattened, and 2-seeded. The annual form of the Slickspot peppergrass matures, reproduces by setting seed, and dies in one growing season. The biennial life form initiates growth in the first year as a rosette, but does not produce seed and die until the second year. Biennial rosettes must survive dry summers on the Idaho Snake River Plain and Owyhee Plateau, and consequently many of these rosettes die before flowering and producing seed. The proportion of annuals versus biennials in a population can vary greatly.
- States/US Territories in which the Slickspot peppergrass, is known to or is believed to occur: Idaho
- US Counties in which the Slickspot peppergrass, is known to or is believed to occur: View All
|Status||Date Listed||Lead Region||Where Listed|
|2016-09-16||Pacific Region (Region 1)|
» Federal Register Documents
No recovery information is available for the Slickspot peppergrass.
» Critical Habitat
|Date||Citation Page||Title||Document Type||Status|
|2011-05-10||76 FR 27184 27215||Designation of Critical Habitat for Lepidium papilliferum (Slickspot Peppergrass); Proposed Rule||Proposed Rule||Proposed|
To learn more about critical habitat please see http://ecos.fws.gov/crithab
» Conservation Plans
|CCA Plan Summaries|
|Slick Spot Peppergrass|
|3 Hulls Gulch Reserve Plants (ID): Aase's onion, Mulford's milk-vetch, Slick-spot peppergrass|
|Boise Airport Slick Spot Peppergrass CCA|
» Life History
No Life History information has been entered into this system for this species.
» 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.