Kupukupu fern. Kipukapuaulu
Growing in a big sandstone wall.
Abundant (sadly) weedy species of wasteland bordering stream
Tuber ladder fern, (Nephrolepis cordifolia) is a fern native to northern Australia and Asia. It has many common names including erect sword fern, narrow sword fern and ladder fern, fishbone fern, and herringbone fern. It is similar to the related fern Nephrolepis exaltata.