Dracaena () is a genus of about 120 species of bushes and succulent shrubs. Within the APG IV classification system, it’s positioned within the household Asparagaceae, subfamily Nolinoideae (previously the household Ruscaceae). It has additionally previously been separated (typically with Cordyline) into the household Dracaenaceae or positioned within the Agavaceae (now Agavoideae).
The identify dracaena is derived from the romanized type of the Historical Greek δράκαινα – drakaina, “feminine dragon”.
Nearly all of the species are native to Africa, southern Asia by to northern Australia, with two species in tropical Central America. The segregate genus Pleomele is now typically included in Dracaena. The genus Sansevieria is carefully associated, and has just lately been synonymized beneath Dracaena within the Kubitzki system.
Species of Dracaena have a secondary thickening meristem of their trunk, termed Dracaenoid thickening by some authors, which is kind of totally different from the thickening meristem present in dicotyledonous vegetation. This attribute is shared with members of the Agavoideae and Xanthorrhoeoideae amongst different members of the Asparagales.
Dracaena species will be labeled in two progress varieties: treelike dracaenas (Dracaena fragrans, Dracaena draco, Dracaena cinnabari), which have aboveground stems with a single cluster of leaves on the finish of every stem and rhizomatous dracaenas (Dracaena trifasciata, Dracaena angolensis), which have underground rhizomes and leaves on the floor (starting from straplike and reasonably skinny to thick and cylindrical).
Many species of Dracaena are stored as houseplants on account of tolerance of decrease gentle and sparse watering.
Crops of the World On-line at present consists of:
Previously thought to be dracaena
This part must be up to date.June 2017)(
Some shrubby species, reminiscent of D. fragrans, D. surculosa, D. marginata, and D. sanderiana, are fashionable as houseplants. Many of those are poisonous to pets, although not people, in accordance with the ASPCA amongst others. Rooted stem cuttings of D. sanderiana are broadly marketed[by whom?] in Australia, the US and the UK as “fortunate bamboo”, though solely superficially resembling true bamboos.
A naturally occurring vivid pink resin, dragon’s blood, is collected from D. draco and, in historical instances, from D. cinnabari. Trendy dragon’s blood is nonetheless extra more likely to be from the unrelated Daemonorops rattan palms.[a] It additionally has social capabilities in marking graves, sacred websites and farm plots in lots of African societies
- Fruit as supply of pink resin exuded between scales, used medicinally and as a dye (one supply of “dragon’s blood”): Daemonorops didymophylla; Daemonorops draco; Daemonorops maculata; Daemonorops micrantha; Daemonorops propinqua; Daemonorops rubra
- Angiosperm Phylogeny Group (2016). “An replace of the Angiosperm Phylogeny Group classification for the orders and households of flowering vegetation: APG IV”. Botanical Journal of the Linnean Society. 181 (1): 1–20. doi:10.1111/boj.12385.
- Chase, M.W.; Reveal, J.L. & Fay, M.F. (2009). “A subfamilial classification for the expanded asparagalean households Amaryllidaceae, Asparagaceae and Xanthorrhoeaceae”. Botanical Journal of the Linnean Society. 161 (2): 132–136. doi:10.1111/j.1095-8339.2009.00999.x.
- Coombes, Allen J. (2012). The A to Z of Plant Names: A Fast Reference Information to 4000 Backyard Crops. Timber Press. ISBN 978-1-60469-196-2.
- Sunderland, Terry C.H.; Dransfield, John (2002). Florentino O.; Dransfield, John; Tesoro; N. Manokaran (eds.). “Species Profiles Rattans”. Rattan, Present Analysis Points and Prospects for Conservation and Sustainable Improvement. 14: 23–34.
- Sheridan, M. (2008). “Tanzanian ritual perimetrics and African landscapes: the case of Dracaena”. Worldwide Journal of African Historic Research. 41 (3): 491–521. JSTOR 40282529.
- Wilkin, Paul; Suksathan, Piyakaset; Keeratikiat, Kaweesak; van Welzen, Peter; Wiland-Szymanska, Justyna (2013). “A brand new species from Thailand and Burma, Dracaena kaweesakii Wilkin & Suksathan (Asparagaceae subfamily Nolinoideae)”. PhytoKeys. 26 (26): 101–112. doi:10.3897/phytokeys.26.5335. PMC 3817424. PMID 24194672.