Dracaena (plant)
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Dracaena Plant

Dracaena
Dracaena draco.jpg
Dracaena draco
Scientific classification e
Domain: Eukaryota
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Monocots
Order: Asparagales
Family: Asparagaceae
Subfamily: Nolinoideae
Genus: Dracaena
Vand. ex L.[1]
Synonyms[1]
  • Acyntha Medik.
  • Chrysodracon P.L.Lu & Morden
  • Draco Crantz
  • Drakaina Raf.
  • Nemampsis Raf.
  • Oedera Crantz
  • Pleomele Salisb.
  • Salmia Cav.
  • Sanseverinia Petagna
  • Sansevieria Thunb.
  • Stoerkia Crantz
  • Terminalis Medik.

Dracaena ([2]) is a genus of about 120 species of trees and succulent shrubs.[3] In the APG IV classification system, it is placed in the family Asparagaceae,[4] subfamily Nolinoideae (formerly the family Ruscaceae).[5][6] It has also formerly been separated (sometimes with Cordyline) into the family Dracaenaceae or placed in the Agavaceae (now Agavoideae).

The name dracaena is derived from the romanized form of the Ancient Greek - drakaina, "female dragon".[]

The majority of the species are native to Africa, southern Asia through to northern Australia, with two species in tropical Central America. The segregate genus Pleomele is now generally included in Dracaena. The genus Sansevieria is closely related, and has recently been synonymized under Dracaena in the Kubitzki system.

Description

Species of Dracaena have a secondary thickening meristem in their trunk, termed Dracaenoid thickening by some authors,[] which is quite different from the thickening meristem found in dicotyledonous plants. This characteristic is shared with members of the Agavoideae and Xanthorrhoeoideae among other members of the Asparagales.

Dracaena species can be classified in two growth types: treelike dracaenas (Dracaena fragrans, Dracaena draco, Dracaena cinnabari), which have aboveground stems with a single cluster of leaves at the end of each stem and rhizomatous dracaenas (Dracaena trifasciata, Dracaena angolensis), which have underground rhizomes and leaves on the surface (ranging from straplike and moderately thin to thick and cylindrical).[]

Many species of Dracaena are kept as houseplants due to tolerance of lower light and sparse watering.[]

Species

Plants of the World Online currently includes:[7]

Formerly regarded as dracaena

Uses

Ornamental

Some shrubby species, such as D. fragrans, D. surculosa, D. marginata, and D. sanderiana, are popular as houseplants. Many of these are toxic to pets, though not humans, according to the ASPCA among others. Rooted stem cuttings of D. sanderiana are widely marketed[by whom?] in Australia, the US and the UK as "lucky bamboo", although only superficially resembling true bamboos.

Other

A naturally occurring bright red resin, dragon's blood, is collected from D. draco and, in ancient times, from D. cinnabari. Modern dragon's blood is however more likely to be from the unrelated Daemonorops rattan palms.[a] It also has a social functions in marking graves, sacred sites and farm plots in many African societies[14]

References

Notes

  1. ^ Fruit as source of red resin exuded between scales, used medicinally and as a dye (one source of "dragon's blood"): Daemonorops didymophylla; Daemonorops draco; Daemonorops maculata; Daemonorops micrantha; Daemonorops propinqua; Daemonorops rubra[13]

Citations

  1. ^ a b "Genus: Dracaena Vand. ex L." Germplasm Resources Information Network. United States Department of Agriculture. 2010-01-19. Archived from the original on 2010-05-30. Retrieved .
  2. ^ Sunset Western Garden Book. Sunset Publishing Corporation. 1995. ISBN 978-0-376-03851-7.
  3. ^ "Dracaena". theplantlist.org. 2013. Retrieved 2020.
  4. ^ Coombes 2012, p. 127.
  5. ^ Chase, Reveal & Fay 2009, pp. 132-136.
  6. ^ Angiosperm Phylogeny Group 2016, pp. 1-20.
  7. ^ "Dracaena Vand. ex L." Plants of the World Online. Kew: Royal Botanic Gardens. Retrieved 2020.
  8. ^ "Dracaena ellenbeckiana". World Checklist of Selected Plant Families (WCSP). Royal Botanic Gardens, Kew.
  9. ^ "Dracaena ellenbeckiana (Kedong Dracaena)". exoten-garten.de.tl (in German). 2009. Retrieved 2016.
  10. ^ "Kedong Dracaena - Dracaena ellenbeckiana". Dave's Garden. 2005. Retrieved 2016.
  11. ^ Wilkin et al. 2013, pp. 101-112.
  12. ^ "Dracaena names". Multilingual Multiscript Plant Name Database. Retrieved 2020.
  13. ^ Sunderland & Dransfield 2002.
  14. ^ Sheridan 2008, pp. 491-521.

Sources

Further reading

External links


  This article uses material from the Wikipedia page available here. It is released under the Creative Commons Attribution-Share-Alike License 3.0.

Dracaena_(plant)
 



 



 
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