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Definition of venation
: an arrangement or system of veins (as in the tissue of a leaf or the wing of an insect)
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Sarracenia leucophylla, the white-top pitcher, is another southern pitcher and perhaps the showiest, with the white upper areas of the tubes contrasting strikingly with darker venation.
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Damage from hungry insects, cold weather or parasites can interrupt leaves’ normal venation patterns.
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