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==Key Stage 3==
===Meaning===
[[File:PlantVeinCrossSection.png|right|300px|thumb|A [[Magnify|magnified]] [[image]] of a [[Plant Vein|plant vein]].]]
A '''plant vein''' is a group of [[Xylem Tissue|xylem]] and [[Phloem Tissue|phloem]] [[tissue]]s used for transportation within a [[plant]].