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noun, Botany.
a rootlike subterranean stem, commonly horizontal in position, that usually produces roots below and sends up shoots progressively from the upper surface.
a thick horizontal underground stem of plants such as the mint and iris whose buds develop new roots and shoots Also called rootstock, rootstalk

A plant stem that grows horizontally under or along the ground and often sends out roots and shoots. New plants develop from the shoots. Ginger, iris, and violets have rhizomes. Also called rootstock. Compare bulb, corm, runner, tuber.


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  • Rhizomorph

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