''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 t ...
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