''Polystichum luctuosum'' is a species of
fern
A fern (Polypodiopsida or Polypodiophyta ) is a member of a group of vascular plants (plants with xylem and phloem) that reproduce via spores and have neither seeds nor flowers. The polypodiophytes include all living pteridophytes except ...
known by the common names Korean rock fern
and Tsushima holly fern. It is a small, clump-forming, tufted, evergreen to semi-evergreen fern native to Japan, Korea, Taiwan, China, Vietnam, and Thailand, as well as southern Africa. The fern grows to about 1–1.5 feet in height, with a spread of 1–1.5 feet, with
stipe up to 30 cm long, pale to mid-brown, with dark brown to almost black scales, and bi-pinnate, glossy, dark green fronds.
Synonyms
* ''Aspidium aculeatum'' var. ''pallescens'' Franch.
* ''Aspidium luctuosum'' Kunze
* ''Aspidium tsus-simense'' Hook.
* ''Polystichum falcilobum'' Ching
* ''Polystichum tsus-simense'' (Hook.) J. Sm.
* ''Polystichum tsus-simense'' var. ''pallescens'' Franch.
References
* Index Fil. 95 1858.
The Plant List entryJSTOR entryMissouri Botanical Garden entryFlora of Zimbabwe entry
luctuosum
{{Dryopteridaceae-stub