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Title: Ochrea  
Author: World Heritage Encyclopedia
Language: English
Subject: Polygonum aviculare, Polygonum pensylvanicum, Polygonaceae, Leaf
Collection: Plant Morphology
Publisher: World Heritage Encyclopedia


Ochrea on a redshank stem

An ochrea (Latin ocrea, greave or protective legging), also spelled ocrea, is a plant structure formed of stipules fused into a sheath surrounding the stem, and is typically found in the Polygonaceae.

In palms it denotes an extension of the leaf sheath beyond the petiole insertion.


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