Biology:Sedum spathulifolium

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Short description: Species of succulent

Sedum spathulifolium
Sedum spathulifolium 5165.JPG
Scientific classification edit
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Order: Saxifragales
Family: Crassulaceae
Genus: Sedum
Species:
S. spathulifolium
Binomial name
Sedum spathulifolium
Hook.

Sedum spathulifolium is a species of flowering plant in the family Crassulaceae known by the common names broadleaf stonecrop,[1] yellow stonecrop,[2] and spoon-leaved stonecrop.[3] An evergreen perennial, it is native to western North America from British Columbia to southern California , where it can be found often in shade in many types of rocky habitat in coastal and inland hills and mountains.[2]

Description

In general, Sedum spathulifolium is a succulent plant producing mats of basal rosettes from a system of rhizomes. The basal leaves are 1 or 2 centimeters long. They are sometimes coated in a waxy, powdery looking exudate. The inflorescence is a short, erect array of many small flowers with five yellow petals. When in fruit, the five carpels are separate at the apex and connected at base.[4]

  • Flower

Etymology

The specific epithet spathulifolium refers to the spade-shaped leaves.[5]

Taxonomy

Sedum spathulifolium is a widespread stonecrop species exhibiting highly variable morphologies throughout its distribution range.[6] While some early literature such as Clausen and Uhl (1944) recognized three subspecies,[7] more recent literature and databases such as the Flora of North America[4] and Plants of the World Online[8] recognized only two varieties.

Clausen and Uhl (1944):

  • Sedum spathulifolium subsp. pruinosum (Britton) Clausen & Uhl Foliage often present on both the flowering branch and the basal rosette, typically heavily pruinose (covered by a layer of white, waxy powder) and are thicker (0.2-0.3 cm).
  • Sedum spathulifolium subsp. typicum Foliage often restricted to the basal rosette part, typically green or glaucous (not pruinose) and are thinner (1.4-2.1mm). Flower larger than that of subsp. anomalum (0.8-1.7 cm in diameter).
  • Sedum spathulifolium subsp. anomalum (Britton) Clausen & Uhl Foliage often restricted to the basal rosette part and devoid of white, waxy, powdery covering; margin slightly wavy. Flowers smaller than that of subsp. typicum (0.7-1.1 cm in diameter).

Flora of America:

  • Sedum spathulifolium var. pruinosum (Britton) B.Bolivin Primary rosette narrower in diameter (1.5-2.1 cm). Foliage typically covered by a thick layer of white powdery waxy overcast and are thicker (2.1-2.5mm). Flowers slightly larger in diameter (1-1.2 cm)
  • Sedum spathulifolium var. spathulifolium Primary rosette wider in diameter (2.5-3.7 cm). Foliage typically green or glaucous (do not have a thick white powdery waxy powdery covering) and are thinner (1.4-2.1mm). Flowers slightly larger in diameter (1.2-1.6 cm).

Cultivation

This plant is useful as ornamental groundcover in well-drained soil in full sun or partial shade. It dislikes winter wet.[9] Numerous cultivars have been selected for garden use, of which 'Cape Blanco'[10] and 'Purpureum'[11] have received the Royal Horticultural Society's Award of Garden Merit.[12]

Cultivar of Sedum spathulifolium var. purpureum

See also

  • San Bruno elfin butterfly - host plant

References

  1. ↑ "Sedum spathulifolium". Natural Resources Conservation Service PLANTS Database. USDA. https://plants.usda.gov/core/profile?symbol=SESP. Retrieved 9 November 2015. 
  2. ↑ 2.0 2.1 "Yellow Stonecrop". Calscape. https://calscape.org/Sedum-spathulifolium-(Yellow-Stonecrop)?srchcr=sc571dd3b2b5e51. 
  3. ↑ "RHS Gardening: Sedum spathulifolium, spoon-leaved stonecrop". https://www.rhs.org.uk/plants/16998/i-sedum-spathulifolium-i/details. 
  4. ↑ 4.0 4.1 "Sedum spathulifolium in Flora of North America @ efloras.org". http://www.efloras.org/florataxon.aspx?flora_id=1&taxon_id=250092153. 
  5. ↑ Harrison, Lorraine (2012). RHS Latin for gardeners. United Kingdom: Mitchell Beazley. pp. 224. ISBN 9781845337315. 
  6. ↑ Zika, Peter F.; Wilson, Barbara L.; Brainerd, Richard E.; Otting, Nick; Darington, Steven; Knaus, Brian J.; Nelson, Julie Kierstead (10 September 2018). "A review of Sedum section Gormania (Crassulaceae) in western North America". Phytotaxa 368 (1): 1. doi:10.11646/phytotaxa.368.1.1. 
  7. ↑ Clausen, Robert T.; Uhl, Charles H. (1944). "The Taxonomy and Cytology of the Subgenus Gormania of Sedum". Madroño 7 (6): 161–180. ISSN 0024-9637. https://www.jstor.org/stable/41422504. 
  8. ↑ "Sedum spathulifolium Hook. | Plants of the World Online | Kew Science" (in en). https://powo.science.kew.org/taxon/urn:lsid:ipni.org:names:284830-2#children. 
  9. ↑ RHS A-Z encyclopedia of garden plants. United Kingdom: Dorling Kindersley. 2008. pp. 1136. ISBN 978-1405332965. 
  10. ↑ "RHS Plant Selector - Sedum spathulifolium". https://www.rhs.org.uk/Plants/75476/Sedum-spathulifolium-Cape-Blanco/Details. 
  11. ↑ "Sedum spathulifolium 'Purpureum'". RHS. https://www.rhs.org.uk/Plants/91168/Sedum-spathulifolium-Purpureum/Details. 
  12. ↑ "AGM Plants - Ornamental". Royal Horticultural Society. July 2017. p. 96. https://www.rhs.org.uk/plants/pdfs/agm-lists/agm-ornamentals.pdf. Retrieved 8 November 2018. 

External links

Wikidata ☰ Q7445441 entry



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