POLYSTICHUM munitum. Western sword fern. A boldly textured, evergreen fern, eventually 4' or more in height and breadth. It has long, narrow once-divided fronds which are quite leathery in texture, dark green in color. Planted in the shade garden, in almost any non-alkaline soil, it requires very little attention and will even survive periods of drought. Hardy to 0^oF. or below.