Scientific Name:
Dryopteris expansa
Pronunciation:
dry-OP-tur-iss ek-SPAN-sa
Common Name:
northwest wood fern, Buckler fern
Family Name:
Dryopteridaceae
Plant Type:
Fern
Key ID Features:
Frond blades triangular, green, lacy, 20-60(-90)cm long x 10-60cm wide, appearing unbranched yet tripinnate at the base and pinnate toward the apex; sori along central vain on the underside of the pinnules.
Habit:
Arching
Form:
Vase
Texture:
Medium - fine
Mature Height:
0.2 - 0.4m
Mature Spread:
0.6 - 1.0m
Origin:
North America, S.E. Asia / Japan / China, South Asia / India (Many countries in north temperate regions or at higher elevations)
Hardiness Rating:
Zone 4: (-34 to -29 °C)
Exposure:
Filtered shade
Soil/Growing Medium:
Acidic
Landscape Uses:
Native planting
Additional Info:
Leaf Morphology:
Form:
Compound, Fern-like
Arrangement:
Basal
Texture/Venation:
Soft flexible
Surfaces:
Pubescent
Compound Leaf:
Tripinnate
Colour in Fall:
Yellow
Shapes:
Ovate
Apices:
Acute
Margins:
Ciliate, Serrate
Inflorescence Type:
Flower Morphology:
Colour (petals):
No flowers
Flower Time at Peak:
Fruit Type:
Sporangium (spores)
Fruit Colour:
Brown
Fruiting Time:
Jun, Jul
Bark or Stem Colour:
Additional Info:
No above ground stem
Pest Susceptibility:
(Pest resistant, Disease resistant, Drought tolerant)
Course(s):
- HORT 1155
Location(s):
- (GAZ) GAZebo
- (GAZN) GAZebo North : q.1
- (TFL) Turf Field Lab
- (TFLW) Turf Field Lab West
- (WLG) WoodLand Garden