Fern moss may refer to several varieties of moss that produce feathery fronds and can form a moss carpet across grass or bare patches of ground:
– lesser fern moss Hylocomium splendens or Hylocomium proliferum – mountain fern moss Thuidium species including: – wiry fern moss Thuidium delicatulum – common fern moss – hook-leaf fern moss
Possibly also: Drepanocladus species including: