1. A New Zealand fern (Pellaea rotundifolia) cultivated as a houseplant for its arching or trailing leaves with round, dark green, buttonlike leaflets.

• 钮状蕨：新西兰产的一种蕨类植物（圆叶旱蕨旱蕨属），因其叶片为弧状或串状，并带有暗绿色的圆形钮扣状小叶片而多作为室内植物培育