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。
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 .
紫萁属