Sedum

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Sedum
Biting Stonecrop (Sedum acre)
Scientific classification
Kingdom: Plantae
(unranked): Angiosperms
(unranked): Eudicots
(unranked): Core eudicots
Order: Saxifragales
Family: Crassulaceae
Subfamily: Sedoideae
Tribe: Sedeae
Subtribe: Sedinae
Genus: Sedum
L.[1]
Species

Many, see text & Wikispecies for more.

Synonyms

Sedum is a large genus of flowering plants in the family Crassulaceae, members of which are commonly known as stonecrops. It contains around 400 species of leaf succulents that are found throughout the Northern Hemisphere, varying from annual and creeping herbs to shrubs. The plants have water-storing leaves. The flowers usually have five petals, seldom four or six. There are typically twice as many stamens as petals.

A number of species, formerly classified as Sedum, are now a separate genus Hylotelephium.

Well known European Sedums are Sedum acre, Sedum album, Sedum dasyphyllum, Sedum reflexum (also known as Sedum rupestre) and Sedum hispanicum.

Contents

[edit] Uses

[edit] Ornamental

Many sedums are cultivated as garden plants, due to their interesting and attractive appearance and hardiness. The various species differ in their requirements; some are cold-hardy but do not tolerate heat, some require heat but do not tolerate cold.

[edit] As food

The leaves of all stonecrops are edible.[2]

Sedum reflexum, known as "prickmadam," "stone orpine," or "crooked yellow stonecrop," is occasionally used as a salad leaf or herb in Europe, including the United Kingdom.[3] It has a slightly astringent sour taste.

Sedum divergens, known as "spreading stonecrop," was eaten by First Nations people in Northwest British Columbia. The plant is used as a salad herb by the Haida and the Nisga'a people. It is common in the Nass Valley of British Columbia.[4]

Biting Stonecrop (Sedum acre) contains high quantities of piperidine alkaloids (namely (+)-sedridine, (-)-sedamine, sedinone and isopelletierine), which give it a sharp, peppery, acrid taste and make it somewhat toxic.

[edit] Traditional

S. acre was used to treat epilepsy and skin disease, as well as an abortifacient in ancient Greece.[citation needed] Outright consumption may cause irritations of the mucous membranes, cramps, paralysis, and respiratory paralysis.[citation needed]

[edit] Roofing

Sedum can be used to provide a roof covering in green roofs,[5] where they are preferred to grasses.[6] Ford's Dearborn Truck Plant’s living roof has 10.4 acres (42,000 m2) of sedum. Rolls-Royce Motor Cars plant in Goodwood, England has a 22,500 square metres (242,000 sq ft) roof complex covered in sedum, the largest in the United Kingdom.[7]

[edit] Ecology

Sedum species are used as food plants by the larvae of some Lepidoptera species including Grey Chi. In particular, Sedum spathifolium is the host plant of the endangered San Bruno elfin butterfly of San Mateo County, California.

[edit] Species

[edit] Formerly placed here

Hylotelephium telephium ssp. maximum, formerly placed in Sedum

Now in Dudleya:

Now in Hylotelephium:

Now in Rhodiola:

[edit] References

  1. ^ "Sedum L.". Germplasm Resources Information Network. United States Department of Agriculture. 2006-11-03. http://www.ars-grin.gov/cgi-bin/npgs/html/genus.pl?11032. Retrieved 2010-04-28. 
  2. ^ Plants of Coastal British Columbia, including Washington, Oregon, & Alaska, 2004, Jim Pojar and Andy MacKinnon, p.157
  3. ^ "Sedum rupestre - L. Crooked Yellow Stonecrop". Plants for a Future. http://www.pfaf.org/database/plants.php?Sedum+rupestre. Retrieved 2010-04-28. 
  4. ^ Plants of Coastal British Columbia, including Washington, Oregon, & Alaska, 2004, Jim Pojar and Andy MacKinnon, p.156
  5. ^ Monterusso, M. A; Rowe, D. B., Rugh, C. L.. Establishment and persistence of Sedum spp. and native taxa for green roof applications. American Society for Horticultural Science. http://www.cababstractsplus.org/abstracts/Abstract.aspx?AcNo=20053080523. Retrieved 30 June 2009. 
  6. ^ Kalinowski, Tess (August 04, 2009). "Green roof takes root at Eglinton West". Toronto Star. http://www.thestar.com/news/gta/article/675703. Retrieved 2010-05-23. 
  7. ^ "Rolls-Royce - Made in Sussex". Sussex Life. October 25, 2010. http://sussex.greatbritishlife.co.uk/article/rolls-royce-made-in-sussex-goodwood-bmw-26150/. Retrieved 2010-11-19. 
  8. ^ Björk, C. (2010). Sedum valens (Crassulaceae), a new species from the Salmon River Canyon of Idaho. Madroño 57:2 136.

[edit] External links

Media related to Sedum at Wikimedia Commons Data related to Sedum at Wikispecies

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