Sphenophyllum cuneifolium

Sphenophyllum It is a genus of herbaceous horsetail formed by a rhizome or underground stem that grows horizontally and from which erect herbaceous shoots with nodes and internodes emerge. The leaves of Sphenophyllum They develop from the nodes in whorls and have a cuneiform to linear blade with parallel venation. The reproductive structures are narrow and long strobili that arise in a terminal position or from the nodes of the stem and are called Bowmanites and how Sphenophyllostachys. These strobili are formed by a central axis with several whorls of bracts that fuse at their base. Numerous sporangiophores bearing sporangia appear on the abaxial surface of these bracts.