The fishbone fern, scientific name nephrolepis cordifolia, is a fern native to northern Australia and Asia.
This plant is native to the Hawaiian Islands where it is known as kupukupu, okupukupu or ni'ani'au.
This fern goes by many names, including tuberous sword fern, tuber ladder fern, erect sword fern, narrow sword fern and ladder fern, and herringbone fern.
The root system of this fern indicates that it has tubers.
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