The leaves, which show great variety in size and form, are generally broad and net-veined, but in sweet-flag (Acorus Calamus) are long and narrow with parallel veins.
The sweet-flag Acorus Calamus, which occurs apparently wild in England in ditches, ponds, &c., is supposed to have been introduced.
It is one of the boldest and handsomest of hardy grasses for the margins of artificial water or streams, associated with such things as the Typhas, Acorus, Bulrush, and Water Dock.
Sweet Flag (Acorus) - Waterside plants of the arum order, easily cultivated.
The name is derived from acorus, Gr.