rhizome
Sign in to savethumb|An antique spurge plant, Euphorbia antiquorum, sending out white rhizomes
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A rhizome is an underground stem that grows horizontally through the soil and can sprout new plants from various points along its length. Rhizomes matter because they allow plants like ginger and bamboo to spread and reproduce without needing seeds, making them important for both plant survival and human agriculture.
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thumb|An antique spurge plant, Euphorbia antiquorum, sending out white rhizomes
In botany and dendrology, a rhizome ( ) is a modified subterranean plant stem that sends out roots and shoots from its nodes. Rhizomes are also called creeping rootstalks or just rootstalks. Rhizomes develop from axillary buds and grow horizontally. The rhizome also retains the ability to allow new shoots to grow upwards.