Scientific Name:
Salix glauca
Pronunciation:
SAY-licks GLAW-kuh
Common Name:
grey-leaf willow
Family Name:
Salicaceae
Plant Type:
Shrub - deciduous, Tree - deciduous
Key ID Features:
Leaves mostly narrowly elliptic to oblanceolate or obovate, 3-8cm x 1-4cm wide, margins entire or serrulate, white pubescence usually present on both surfaces; male catkins 14-53 x 5-17mm, female catkins 15-83 x 7-21mm. E-Flora BC
Habit:
Dense, Spreading, Upright
Form:
Round
Texture:
Medium
Mature Height:
3 - 5m
Mature Spread:
4 - 5m
Growth Rate:
Fast
Origin:
Europe, North America
Hardiness Rating:
Zone 4: (-34 to -29 °C)
Exposure:
Full sun, Part sun/part shade
Soil/Growing Medium:
Bog
Water Use:
High, Wetlands
Landscape Uses:
Cut flower or foliage, Erosion control, Reclamation, Spring interest, Wetland - bogs, Woodland margin
Additional Info:
Google. Compare to S. hookeriana. There are over 50 species of willow in BC and most have highly variable leaf morphology (require female catkins and fruit to confirm ID).
Leaf Morphology:
Form:
Simple
Arrangement:
Alternate
Texture/Venation:
Soft flexible
Surfaces:
Glabrous, Tomentose
Colour in Fall:
Green-yellow
Shapes:
Elliptic, Obovate
Apices:
Acuminate, Acute, Rounded
Bases:
Cuneate, Rounded
Margins:
Ciliate, Entire
Inflorescence Type:
Catkin (ament), Floriferous
Flower Morphology:
Dioecious plant
Number Of Petals:
0
Colour (petals):
Green-yellow
Flower Scent:
None
Flower Time at Peak:
Mar, Apr
Fruit Type:
Capsule
Fruit Colour:
Brown
Fruiting Time:
Additional Info:
Not showy,
Bark Morphology:
Smooth, Multi-stem trunk
Bark or Stem Colour:
Grey
Leaf Bud Type:
Oblong, One-scaled, Ovoid
Leaf Scar Shape:
Crescent shaped
Organ Modifications:
Ectomycorrhizae, Stipule, leafy
Propagation:
Seed, Cuttings, Layering
Pest Susceptibility:
Aphids or adelgids (Pest resistant, Disease resistant)
Course(s):
- not used (on campus)
Location(s):
- (BCE) Boulevard (Circular) Eastend : confirm ID