Scientific Name:
Polystichum polyblepharum
Pronunciation:
puh-LISS-tih-kum pol-ee-BLEF-ar-um
Common Name:
Japanese tassel fern
Family Name:
Dryopteridaceae
Plant Type:
Fern
Key ID Features:
Crosiers flip over backwards as the newly emerging fronds expand to form "tassels"; fronds 40-80cm long x 14-22cm wide, shiny, bipinnate, dark green, up to 60cm long; pinnae finely divided and overlapping, middle pinnae 7-10cm long x 1.4-2.2cm wide, pinnules alternate, 15-20 pairs, shortly stalked, oblong, 1-2cm long x 0.5-0.75cm wide; sori 3-7 pairs per pinnule, indusia present. WFO.
Habit:
Arching
Form:
Vase
Texture:
Medium
Mature Height:
0.4 - 0.7m
Mature Spread:
0.3 - 0.6m
Growth Rate:
Moderate
Origin:
S.E. Asia / Japan / China
Hardiness Rating:
Zone 5: (-29 to -23 °C)
Exposure:
Part sun/part shade, Filtered shade, Deep shade
Soil/Growing Medium:
Acidic, Humus rich, Well-drained
Water Use:
Moderate
Landscape Uses:
Alpine, Ground cover, Group or mass planting, Mixed shrub border, Rock garden, Summer interest, Winter interest, Woodland margin
Additional Info:
Google. (Smaller compared to P. setiferum).
Leaf Morphology:
Form:
Compound, Fern-like
Arrangement:
Basal
Texture/Venation:
Leathery, Prickly
Surfaces:
Lustrous
Compound Leaf:
Bipinnate
Colour in Summer:
Dark-green
Colour in Fall:
Dark-green
Shapes:
Oblong, Ovate
Apices:
Acuminate, Mucronate
Margins:
Dentate
Inflorescence Type:
Flower Morphology:
Colour (petals):
No flowers
Flower Time at Peak:
Fruit Type:
Sporangium (spores)
Fruit Colour:
Brown
Fruiting Time:
Aug, Sep
Additional Info:
Not showy, Persistent
Bark or Stem Colour:
n/a
Organ Modifications:
Rhizomes
Propagation:
Spore, Division - below ground parts, Tissue culture
Maintenance:
Low
Pest Susceptibility:
(Pest resistant, Disease resistant, Deer resistant, Rabbit resistant)
Course(s):
- HORT 2355
Location(s):
- (BUG) BUG garden
- (ONE) Overpass North side East
- (PHA) PolyHouse and Area