Alpinia purpurata
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Alpinia purpurata |
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| ( Vieill. ) K.Schum. |
Alpinia purpurata is a species of the genus Alpinia in the ginger family(Zingiberaceae). It is used as an ornamental plant and as a cut flower in tropical parks and gardens.
description
Vegetative characteristics
Alpinia purpurata grows as a perennial herbaceous plant and reaches heights of 2 to 3 meters.
The alternate leaves have short stems. The glossy green, simple leaf blade is lanceolate with a length of usually 30 to 70, rarely up to 80 centimeters and a width of 10 to 22 centimeters .
Generative characteristics
The terminal, up to 30 centimeters long inflorescences usually have red (occasionally pink or white in cultivated forms), with a length of up to 3 centimeters ovoid or broadly ovate bracts . In the armpits of the bracts there are one to two, rarely up to five flowers above reddish bracts.
The hermaphrodite flowers are zygomorphic and threefold with a double flower envelope . The reddish calyx tube is usually 1.7 to 2, rarely up to 2.7 inches long and bald. The crown is white. The white labellum has two lateral lobes and a central area that is three-lobed or almost entire and about as long as the corolla lobes. The stamens are 6 to 7 millimeters long. The ovary is 3 to 4 millimeters long and glabrous.
Alpinia purpurata forms almost spherical capsule fruits with a diameter of 2 to 3 centimeters with angular seeds that have a diameter of 3 millimeters.
ecology
Propagation takes place via the rhizomes or the spread of seeds .
distribution
Alpinia purpurata is native to Papua New Guinea , New Caledonia , the Solomon Islands and Vanuatu . Alpinia purpurata is a neophyte in many tropical regions, such as Hawaii and Puerto Rico .
use
Alpinia purpurata is used as an ornamental plant. The inflorescences are traded as cut flowers, and in 2005 Hawaii exported Alpinia purpurata valued at $ 680,000.
Individual evidence
- ↑ a b c d Institute of Pacific Islands Forestry - Pacific Island Ecosystems at Risk (PIER): Alpinia purpurata (English, accessed on July 10, 2010)
- ↑ Alpinia purpurata in the Germplasm Resources Information Network (GRIN), USDA , ARS , National Genetic Resources Program. National Germplasm Resources Laboratory, Beltsville, Maryland. Retrieved July 10, 2010.
- ↑ USDA - US Department of Agriculture: PLANTS Database Profile Datasheet Alpinia purpurata (English, accessed on July 10, 2010)
- ↑ Rafaël Govaerts (ed.): Alpinia purpurata. In: World Checklist of Selected Plant Families (WCSP) - The Board of Trustees of the Royal Botanic Gardens, Kew . Retrieved January 28, 2019.
- ↑ Kent D. Kobayashi, Janette McEwen, Andrew J. Kaufman: Ornamental Ginger, Red and Pink . In: Ornamentals and Flowers. 2007. PDF.
Web links
- more photos
- CP Victório, RM Kuster, CLS Location: Detection of flavonoids in Alpinia purpurata (Vieill.) K. Schum. leaves using high performance liquid chromatography. In: Revista Brasileira de Plantas Medicinais. , Vol. 11, No. 2, 2009 ( online , accessed August 9, 2012)