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Alpinia
''Alpinia'' is a genus of flowering plants in the ginger family, Zingiberaceae. It is named for Prospero Alpini, a 17th-century Italian botanist who specialized in exotic plants. Species are native to Asia, Australia, and the Pacific Islands, where they occur in tropical and subtropical climates.〔(''Alpinia''. ) Flora of China.〕 Several species are cultivated as ornamental plants.〔(''Alpinia''. ) Flora of North America.〕 Species of the genus are known generally as ginger-lilies.〔〔(''Alpinia''. ) Integrated Taxonomic Information System (ITIS).〕
== Description ==
These herbs lack true stems, but have pseudostems usually up to about 3 meters long which are composed of the overlapping leaf sheaths.〔〔 A few species have been known to reach 8 meters.〔Kress, W. J., et al. (2005). (The molecular phylogeny of ''Alpinia'' (Zingiberaceae): a complex and polyphyletic genus of gingers. ) ''American Journal of Botany'' 92(1), 167-78.〕 They grow from thick rhizomes. The leaves are lance-shaped to oblong. The inflorescence takes the form of a spike, a panicle, or a raceme. It may be hooded in bracts and bracteoles. The flower has a shallowly toothed calyx which is sometimes split on one side. The flower corolla is a cylindrical tube with three lobes at the mouth, the middle lobe larger and hoodlike in some taxa. There is one fertile stamen and two staminodes, which are often joined into a petal-like labellum, a structure that is inconspicuous in some species and quite showy in others. The fruit is a rounded, dry or fleshy capsule.〔〔 The plants are generally aromatic due to their essential oils.〔Victório, C. P. (2011). (Therapeutic value of the genus ''Alpinia'', Zingiberaceae. ) ''Revista Brasileira de Farmacognosia'' 21(1), 194-201.〕
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