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Glossary of biological terms: R

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raceme (adjective racemose). An inflorescence (i.e. group of flowers on a plant) in which the oldest flowers are at the base and the youngest are at the top. 

rhizome (flowering plants). A storage organ originating from the roots. Distinguished from normal roots by having buds, leaves or scales arising from it. Plants with underground storage organs are termed geophytes.

root. The part of the plant that goes downwards, normally into the ground, anchoring the plant and absorbing and conducting water and mineral nutrients.


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