| Scientific Name: | Polystichum luctuosum |
| Common Name: | Korean rock fern |
| Family Name: | Dryopteridaceae |
| Origin: | S.E. Asia / Japan / China |
| Hardiness Zone: | Zone 6: (-23 to -18 °C) |
| Plant Type: | Fern, Indoor foliage plant |
| Mature Size: | 0.2 - 0.4m x 0.3 - 0.6m (height x width) |
| Habit: | Arching |
| Form: | Vase |
| Texture: | Medium - fine |
| Landscape Uses: | Accent plant, Alpine, Container planting, Ground cover, Group or mass planting, Mixed shrub border, Rock garden, Small garden/space, Summer interest, Woodland margin |
| Exposure: | Part sun/part shade, Filtered shade, Deep shade |
| Soil or Media: | Acidic, Humus rich, Well-drained |
| Leaves: | Compound, Fern-like, Basal, Glabrous, Bipinnate, Lanceolate, Oblong, Ovate, Dentate |
| Flowers: | |
| Fruit: | Sporangium (spores), Brown, Apr-May |
| Key ID Features: | |
| Fern 30-45cm tall, fronds bipinnate, upright, dark green upper surface, olive green lower surface, black veins; stipe grooved, brown-black with usually very dark and narrow scales; pinnae lanceolate, finely divided, glossy with spiny-toothed margins; indusia large and persistent. | |