Taisha is again the writer:
Doryopteris decipiens is an endemic Hawaiian fern in the Pteridaceae (subfamily Cheilanthoideae). The species is one of five or six in the genus (depending on taxonomic perspective) that are present in Hawaii. When the genus first reached the Hawaiian Islands is still to be determined, but it seems that the ancestors of at least two species, Doryopteris decipiens and Dorypoteris decora, colonized at different times (as opposed to a single colonization event and subsequent evolution from the original colonizer).
It can be difficult to delimit and identify Hawaiian Doryopteris taxa due to their extreme variation, presence of hybrids and polyploid species, and intermediate / overlapping morphological characters. Dorypoteris decipiens can be described to have a small erect form with a pedately-dissected lamina that is glabrescent on the abaxial surface. This species also has a thinner petiole (c. 1mm diameter) and indusia with crenulate margins (for more on distinguishing features, see: Yesilyurt, J.C. (2005). The fern genus Doryopteris (Cheilanthoideaes-Pteridaceae) in the Hawaiian Islands. Kew Bulletin. 60:547-55).