''Sedella'' (formerly ''Parvisedum'') is a small genus of annual flowering plants in the family

Crassulaceae The Crassulaceae (from Latin ''crassus'', thick), also known as the stonecrop family or the orpine family, are a diverse family of dicotyledon flowering plants characterized by succulent leaves and a unique form of photosynthesis, known as Cr ...

. There are approximately 7 species, all native to

California California is a state in the Western United States, located along the Pacific Coast. With nearly 39.2million residents across a total area of approximately , it is the most populous U.S. state and the 3rd largest by area. It is also the ...

, United States, one with a distribution extending into

Oregon Oregon () is a state in the Pacific Northwest region of the Western United States. The Columbia River delineates much of Oregon's northern boundary with Washington, while the Snake River delineates much of its eastern boundary with Idah ...

. These are petite

succulent plant In botany, succulent plants, also known as succulents, are plants with parts that are thickened, fleshy, and engorged, usually to retain water in arid climates or soil conditions. The word ''succulent'' comes from the Latin word ''sucus'', meani ...

s growing a few centimeters tall and bearing tiny yellowish or brownish flowers. Mock stonecrop is a common name for these plants.

Description

These plants are diminutive annuals, they grow erect and are glabrous (without hairs). The leaves are early-deciduous,

sessile Sessility, or sessile, may refer to: * Sessility (motility), organisms which are not able to move about * Sessility (botany), flowers or leaves that grow directly from the stem or peduncle of a plant * Sessility (medicine), tumors and polyps that ...

, and shaped oblong-elliptic to ovoid. The tips of the leaves are rounded to obtuse. The inflorescence has 1 to 2 flowers in 0 to 3 branched cyme, sub-sessile. There are 5 sepals and 5 petals. The petals are pale to bright or green-yellow, with a midrib that is often more or less red.

Taxonomy

The genus was described by

Nathaniel Lord Britton Nathaniel Lord Britton (January 15, 1859 – June 25, 1934) was an American botanist and taxonomist who co-founded the New York Botanical Garden in the Bronx, New York. Early life Britton was born in New Dorp in Staten Island, New York to Jasper ...

and Joseph Nelson Rose during their reorganization of the North American

. The name is the Latin diminutive of ''Sedum''. The name ''Parvisedum'' is a synonym.

Species

* ''

Sedella atrata ''Sedum atratum'', the dark stonecrop, is a species of flowering plant in the family Crassulaceae, native to the mountain ranges of Europe; Cantabrians, Pyrenees, Alps, Apennines, Carpathians, and Balkans. Usually an annual, it is a succulent fo ...

'' Fourr. * ''

Sedella carinthiaca ''Sedum atratum'', the dark stonecrop, is a species of flowering plant in the family Crassulaceae, native to the mountain ranges of Europe; Cantabrians, Pyrenees, Alps, Apennines, Carpathians, and Balkans. Usually an annual, it is a succulent fo ...

'' (Hoppe ex Pacher) Á.Löve & D.Löve * ''

Sedella congdonii ''Sedella congdonii'' is a species of flowering plant in the family Crassulaceae known by the common name Congdon's mock stonecrop. It is endemic to California, where it can be found in the Sierra Nevada, often in rocky and moist habitat types. ...

'' (Eastw.) Britton & Rose - Congdon's mock stonecrop * ''

Sedella leiocarpa ''Sedella leiocarpa'' is a rare species of flowering plant in the family Crassulaceae known by the common names Lake County mock stonecrop and Lake County stonecrop. It is endemic to Lake County, California, where it is known from only about ten ...

'' H. Sharsm. - Lake County stonecrop * ''

Sedella pentandra ''Sedella pentandra'' is a species of flowering plant in the family Crassulaceae known by the common name Mt. Hamilton mock stonecrop. It is endemic to California, where it grows in the Central Coast Ranges and adjacent sections of the Central ...

'' H. Sharsm. - Mt. Hamilton mock stonecrop * ''

Sedella pumila ''Sedella pumila'' is a species of flowering plant in the family Crassulaceae known by the common name Sierra mock stonecrop. It is native to California, where it grows in the North Coast Ranges and adjacent sections of the Central Valley to ...

'' (Benth.) Britton & Rose - Sierra mock stonecrop * ''

Sedella villosa Sedella is a town and municipality in the province of Málaga, part of the autonomous community of Andalusia in southern Spain. The municipality is situated approximately 54 kilometres from the provincial capital of Málaga, 23 from Vélez-Mál ...

'' (L.) Fourr.

References

External links

Jepson Manual TreatmentUSDA Plants ProfileFlora of North AmericaPhoto gallery
Crassulaceae Crassulaceae genera {{Crassulaceae-stub