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Leiberg Stonecrop - Sedum leibergii


Family: Crassulaceae - Stonecrop family Genus Common Name: Stonecrop Native Status: NativeBiennial Herb
Sedum leibergii - Leiberg Stonecrop. The Sedum genus is in flux. USDA lists 72 taxa in the genus; many of those will be moved out of Sedum based on newer analysis of data which will include that from recent molecular studies.

Sedum leibergii is found only in four states - Montana, Idaho, Washington, and Oregon. It is found only in two counties in Montana (according to BONAP / USDA,) and is fairly rare in the 7 counties in Idaho where it's found.

Found in:
ID, MT, OR, WA

Journal Articles Referencing Stonecrop

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Sedum leibergii

Distribution of Sedum leibergii in the United States and Canada:
Map unavailable.
Map courtesy of The Biota of North America Program.
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Site: Kleinschmidt Grade, Adams County, ID Date: 2011-June-19Photographer: Gerald C. Williamson
Nikon D7000
The flowers of Leiberg Sedum (and several other sedums) are often described as canary yellow. I prefer to think of them as American Goldfinch yellow.
Sedum leibergii
Site: Kleinschmidt Grade, Adams County, ID Date: 2012-May-28Photographer: Gerald C Williamson
Nikon D7000
The flowers of Sedum leibergii are "5-, 6-, or 7-merous" - the yellow petals, sepals, and stamens are in multiples of one of those numbers. Leiberg Stonecrop is the only North American member of the Sedum genus that may vary in the number of flower petals between flowers in the same plant. This photo shows one with 5 petals (and 5 sepals / 10 stamens) to the lower left, while the remaining visible flowers each have 6 petals (with 6 sepals and 12 stamens.) The inflorescence is a cyme - the flowers more or less start opening at the outer end of the inflorescence.
Click on the photo for a larger image
Sedum leibergii
Site: Kleinschmidt Grade, Adams County, ID Date: 2012-May-28Photographer: Gerald C Williamson
Nikon D7000
The inflorescence of Leiberg Stonecrop is usually branched with the branches usually more or less recurved to spread as shown in this photo.
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Sedum leibergii
Site: Kleinschmidt Grade, Adams County, ID Date: 2011-June-19Photographer: Gerald C Williamson
Nikon D7000
The inflorescence is held on an erect stem shoot with alternating leaves. The bracts on the branches of the inflorescence are smaller than the leaves on the stem, but otherwise are appear similar.
Click on the photo for a larger image
Sedum leibergii
Site: Kleinschmidt Grade, Adams County, ID Date: 2011-June-19Photographer: Gerald C Williamson
Nikon D7000
The stems of Sedum leibergii are horizontal and bear small basal rosettes of leaves. These rosettes are mostly gone by flowering time in this species (still prominent at flowering of similar species Sedum borschii), but in this photograph of a colony of S. leibergii at dead center you can see a small green spot. Closer inspection of the original photo shows that to be a leaf rosette.
Click on the photo for a larger image
Sedum leibergii
References used for identification and information:
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Sedum leibergii initially published on USWildflowers.com 2012-07-15; Updated 2015-06-24

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All content except USDA Plants Database map Copyright Gerald C. Williamson 2024
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Code Update 20230302