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In Cycas, the first formed cambial ring is short lived and new cambial ring is formed every year in the pericycle or cortex. Wood formed by this method is
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polyxylic
💡 Explanation:
Cycas exhibits polyxylic wood formation where successive cambial rings are produced annually in the pericycle or cortex because the first cambial ring is short-lived. This results in multiple wood cylinders being formed over time, unlike monoxylic (single wood cylinder) or pycnoxylic (compact wood with little parenchyma) patterns. Polyxylic wood is characteristic of certain cycads and some other ancient plant lineages.