fern growing on rocks or tree trunks and having fronds greyish and scurfy below; Americas and South Africa
同义词：grey polypody??/??resurrection fern??/??Polypodium polypodioides
英汉双解词典包含3185865条英汉词条，基本涵盖了全部常用单词的翻译及用法，是英语学习的有利工具。