Bolbitis subcordata is one of the many "walking ferns": at the ends of its fronds it grows brown "adventitious" buds, and when the fronds grow long enough to touch the ground, these buds take root and grow into new plants.
被形容為會走路的「海南實蕨」，葉片頂端長有棕色不定芽，隨著葉子長大下垂，不定芽也「落地生根」，萌發出新的植株，除了靠孢子繁殖，走路的海南實蕨，就靠著不定芽開疆拓土，讓自己的「蕨」子「蕨」孫們繁多不及備載。