Discussion
Anomalous secondary growth is observed in
Answer: D
Anomalous secondary growth is seen in Dracaena.
Monocots normally have no vascular cambium and no secondary growth. Dracaena, the dragon tree, is an exception: a secondary thickening meristem develops in the cortex outside the primary bundles and produces new vascular bundles and ground tissue inward, so the trunk thickens. Because this does not follow the usual cambial pattern of dicots, it is called anomalous secondary growth.
Triticum (wheat), Oryza (rice) and Zea (maize) are grasses whose stems have scattered closed bundles and do not undergo secondary growth.
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