cinnamon fern

cinnamon-fern的词性：
n.（名词）

1. A New World fern (Osmunda cinnamomea) having narrow, spore-bearing, cinnamon-colored leaves in early spring, which are later encircled by wider, sterile green leaves.
桂皮紫萁，普通肉桂蕨：新大陆的一种蕨（分株紫萁 紫萁属） ，早春时有狭长的、带孢子的肉桂色叶子，稍晚为较宽的不育的绿色叶子所包围