''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 crassulas, the stonecrops or the orpine family, are a diverse Family (biology), family of dicotyledon angiosperms primarily characterized by succulent leaves and a form of phot ...

. There are approximately 7 species, all native to

California California () is a U.S. state, state in the Western United States that lies on the West Coast of the United States, Pacific Coast. It borders Oregon to the north, Nevada and Arizona to the east, and shares Mexico–United States border, an ...

, United States, one with a distribution extending into

Oregon Oregon ( , ) is a U.S. state, state in the Pacific Northwest region of the United States. It is a part of the Western U.S., with the Columbia River delineating much of Oregon's northern boundary with Washington (state), Washington, while t ...

. 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'', meanin ...

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 Hair is a protein filament that grows from follicles found in the dermis. Hair is one of the defining characteristics of mammals. The human body, apart from areas of glabrous skin, is covered in follicles which produce thick terminal and fin ...

). The leaves are early-deciduous, sessile, 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 (1859 – 1934) was an American botanist and taxonomist who co-founded the New York Botanical Garden in the Bronx, New York (state), New York. Early life Britton was born on the 15 of January 1859 at New Dorp, Staten Island ...

and

Joseph Nelson Rose Joseph Nelson Rose (January 11, 1862 – May 4, 1928) was an American botanist. He was born in Union County, Indiana. His father died serving during the Civil War when Joseph Rose was a young boy. He later graduated from high school in Liberty, ...

during their reorganization of the North American

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

Species

* '' Sedella atrata'' Fourr. * '' Sedella carinthiaca'' (Hoppe ex Pacher) Á.Löve & D.Löve * '' Sedella congdonii'' (Eastw.) Britton & Rose - Congdon's mock stonecrop * '' Sedella leiocarpa'' H. Sharsm. - Lake County stonecrop * '' Sedella pentandra'' H. Sharsm. - Mt. Hamilton mock stonecrop * '' Sedella pumila'' (Benth.) Britton & Rose - Sierra mock stonecrop * '' Sedella villosa'' (L.) Fourr.

References

External links

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