Alpinia sessiliflora (Alpinia sessiliflora)
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. 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.
Taxonomic tree
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Domain: Eukarya
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Kingdom: Plantae
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Phylum:
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Class: Liliopsida
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Order: Zingiberales
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Family: Zingiberaceae
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Genus: Alpinia
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