Ontology Term : PO:0019026 tracheid bar Plant Ontology
Description  A portion of xylem (PO:0005352) tissue that is a distinct ring-like structure composed of tracheids (PO:0000301), that is part of a seed (PO:0009010) and surrounds the hilum (PO:0020063) and forms a groove in the surface of the pericarp (PO:0009084) immediately adjacent to the hilum.
Namespace  plant_anatomy
Obsolete  false
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2 Synonyms

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