It is a monocot stem. It is characterised by conjoint, collateral, and closed vascular bundles, scattered in the ground tissue containing the parenchyma. Each vascular bundles is surrounded by sclerenchymatous bundle-sheath cells.
Other four features are:
(i) Vascular bundles are scattered in the ground tissue.
(ii) Y-shaped xylem endarch condition.
(iii) Cambium is absent.
(iv) Phloem parenchyma and medullary rays are absent in monocot stems.