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| | [[Image:Zingiber officinale01.jpg|thumb|[[Ginger]] rhizome]] | | [[Image:Zingiber officinale01.jpg|thumb|[[Ginger]] rhizome]] |
| | [[Image:Iris rhizome p1150371.jpg|thumb|[[Iris (plant)|Iris]] rhizome]] | | [[Image:Iris rhizome p1150371.jpg|thumb|[[Iris (plant)|Iris]] rhizome]] |
| − | In [[botany]], a '''rhizome''' is a usually underground, horizontal [[plant stem|stem]] of a [[plant]] that often sends out [[root]]s and [[shoot]]s from its nodes. Rhizomes may also be referred to as creeping rootstalks, or rootstocks. A [[stolon]] is similar to a rhizome, but exists above ground, sprouting from an existing stem.
| + | Underground [[stem]]; [[rootstock]].{{SCH}} |
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| − | Many plants have rhizomes that serve to spread the plant by [[vegetative reproduction]]. Examples of plants that do this are [[asparagus]], [[ginger]], [[iris (plant)|iris]]es, [[Lily of the Valley]], [[Canna (plant)|Cannas]] and [[sympodial]] [[orchid]]s. The spreading stems of [[fern]]s are also called rhizomes.
| + | {{glossary}} |
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| − | A [[tuber]] is a thickened part of a [[stolon]] that has been enlarged for use as a [[storage organ]]. <ref>Kingsley R. Stern ''Introductory Plant Biology'', 10th ed.</ref> They are typically high in [[starch]]. An example of a tuber is the common [[potato]].
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| − | ==References==
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| − | <references/>
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| − | [[Category:Plant anatomy]]
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| − | [[Category:Plant reproduction]]
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| − | [[Category:Rhizome]]
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Latest revision as of 14:36, 14 April 2009
