Densely tufted fern ally of southwestern United States to Peru,curls up in a tight ball when dry and expands and grows under moist conditions.

• 产于美国西南部至秘鲁的浓密成簇状的拟蕨类植物，干旱时卷成紧密的球形，在潮湿的条件下伸展、生长。