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Scientific Name:
Polypodium glycyrrhiza
Pronunciation:
pol-ee-PODE-ee-um gly-ky-RY-zuh
Common Name:
licorice fern
Family Name:
Polypodiaceae
Plant Type:
Fern
Key ID Features:
Small epiphytic fern that grows primarily on older, mossy big-leaf maples or trunks in mature forests but can be used as a ground cover; long creeping scaly rhizome; fronds 10-45(-60)cm long (including stipe) x 2-10(-15)cm wide, pinnae or pinnified lobes ~1cm wide, alternate along rachis, margins serrulate.

Habit:
Arching, Epiphytic
Form:
Weeping
Texture:
Medium - fine
Mature Height:
0.2 - 0.4m
Mature Spread:
0.1 - 0.3m
Growth Rate:
Moderate
Origin:
B.C. west of Cascades, U.S. - northwest
Hardiness Rating:
Zone 6: (-23 to -18 °C)
Exposure:
Filtered shade
Soil/Growing Medium:
Well-drained
Landscape Uses:
Ground cover, Winter interest, Woodland margin
Additional Info:

Leaf Morphology:
Form:
Fern-like
Arrangement:
Basal
Texture/Venation:
Soft flexible
Surfaces:
Glabrous
Colour in Summer:
Dark-green
Colour in Fall:
Yellow
Shapes:
Elliptic
Apices:
Acute
Bases:
Hastate
Margins:
Pinnately lobed

Inflorescence Type:
Flower Morphology:
Colour (petals):
No flowers
Flower Time at Peak:

Fruit Type:
Sporangium (spores)
Fruit Colour:
Yellow
Fruiting Time:
Sep, Oct

Bark or Stem Colour:
Green
Additional Info:
rhizomes thick and knobby in tree bark fissures
Organ Modifications:
Rhizomes
Maintenance:
Low
Pest Susceptibility:
(Pest resistant, Disease resistant, Drought tolerant)

Course(s):
  • not used (on campus)
Location(s):
  • (JPL)  Juglans PLanting : on the black walnut tree
  • (ONW)  Overpass North side West : cvs. Licorice, Divisilobum
Location Map