'Duffii' is a densely covered, compact fern with unique looks. This is partially due to the downy brown rhizome points at the base of the plant. It takes its ornamental value from the straight, sometimes forked, erect leaf stalks, which are covered with tiny, knot-like leaflets 0,5-0,8 inch (1 to 2 cm) in length. One of the great advantages of 'Duffii' is its tolerance of warm, dry environments. This makes it ideal for our centrally heated homes. In the (sub) tropics 'Duffii' is also used as a patio plant.