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Cheilocostus speciosus
Species of flowering plant From Wikipedia, the free encyclopedia
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Cheilocostus speciosus, or crêpe ginger, is a species of flowering plant in the family Costaceae. Some botanists have now revived the synonym Hellenia speciosa for this species.[3]
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It is native to southeast Asia and surrounding regions, from India to China to Queensland, It is especially common on the Greater Sunda Islands in Indonesia. It is also reportedly naturalised in Puerto Rico, Mauritius, Réunion, Fiji, Hawaii, Costa Rica, Belize, Melanesia, Micronesia, and the West Indies. It is widely cultivated as an ornamental.[4]
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Description
Cheilocostus speciosus and other members of the Costaceae differ from gingers by having only one row of spirally arranged leaves. The species reproduces vegetatively by rhizome, and birds disperse the seeds when they feed on the fruits. The flowers have only two stamens, one is functional, with a single locule, while the other is petaloid, forming a white, bell-shaped trumpet around the fertile one. The true petals, also white, are small. The plant can reach 2 metres (6 ft 7 in) in height.[5]
This plant is cultivated in South Asia and Southeast Asia for its medicinal uses, and is cultivated elsewhere as an ornamental. In some areas Cheilocostus speciosus is introduced and has become an invasive species.
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Habitat
The habitat where this species is found is roadside ditches and low-lying areas in tropical forests. Flowering starts after onset of the rainy season.
Ecology
Caterpillars of the restricted demon (Notocrypta curvifascia) feed on crêpe ginger.[6]
Human relevance
The plant has many historical uses in Ayurveda, where the rhizome has been used to treat fever, rash, asthma, bronchitis, and intestinal worms.[7] It is mentioned in the Kama Sutra as an ingredient in a cosmetic to be used on the eyelashes to increase sexual attractiveness. It is used to treat kidney problems and other urinary problems in Mizo Traditional Medicine. It was used as a traditional medicine by Malays when evil spirits have possessed a body,[8] as well as for the treatment of high fever, smallpox and as a purgative.[9]
The crêpe ginger is also a source of diosgenin, a compound used for the commercial production of various steroids, such as progesterone.[10]
Several parts of the plant are eaten, including the flowers, leaves, shoots, and rhizomes.[11][12][13]
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Gallery
Bud
Leaf from back side
Transformation from flower to seeds
Seeds
Inflorescence after flowers died
New leaf
In Basse Terre, Guadeloupe
New buds after winter
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References
External links
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