Not that he wasn't armed; he wore a few sheaths strapped to his body.
The dirty bags and sheaths are then washed, mangled and dried, and made ready for use again.
4 is a spike of the female inflorescence, protected by the sheaths of leaves - the blades being also present.
Usually the sheaths terminate in a point, the blades being arrested.
Equisetites columnaris, a common fossil in the Jurassic plant-beds of the Yorkshire coast, represents another type with relatively stout and occasionally branched vegetative shoots, bearing leaf-sheaths very like those of Equisetum maximum and other Horsetails.