Madagascar dragon tree

Description

Dracaena concinna is a species of asparagus plant. This was first described by Carl Sigismund Kunth. Dracaena concinna belongs to the genus Dracaena, and family Asparagaceae. The species is classified by the IUCN as extinct. Dracaena is a genus of about 120 species of trees and succulent shrubs. The formerly accepted genera Pleomele and Sansevieria are now included in Dracaena. In the APG IV classification system, it is placed in the family Asparagaceae, subfamily Nolinoideae (formerly the family Ruscaceae).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. 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 that branch from nodes after flowering, or if the growth tip is severed, and rhizomatous dracaenas (Dracaena trifasciata, Dracaena angolensis), which have underground rhizomes and leaves on the surface (ranging from straplike to cylindrical). Many species of Dracaena are kept as houseplants due to tolerance of lower light and sparse watering.