Scientific Name:
Acer
x
freemanii
Pronunciation:
AY-sur ex free-MUN-ee-eye
Common Name:
Freeman maple, columnar red maple
Family Name:
Sapindaceae
Plant Type:
Tree - deciduous
Key ID Features:
Leaves opposite, orbicular, most 9-13cm wide, base trucate-hastate, coarsely toothed, pale underneath, 3-5 palmate lobes (sinuses are deeper than red maple but not as deep as silver maple), petoles mostly 8-16cm long. Winter ID: lateral buds opposite, 2-3mm long, two outer red scales.
Habit:
Upright
Form:
Oval - vertical
Texture:
Medium - coarse
Mature Height:
10 - 15m
Mature Spread:
4 - 5m
Growth Rate:
Fast
Origin:
Garden origin, North America (A. rubrum x A. saccharinum - freely hybridizes in nature where ranges overlap)
Hardiness Rating:
Zone 4: (-34 to -29 °C)
Exposure:
Full sun
Soil/Growing Medium:
Well-drained
Landscape Uses:
Fall interest, Street (boulevard tree)
Additional Info:
Leaf Morphology:
Form:
Simple, Lobed
Arrangement:
Opposite
Texture/Venation:
Soft flexible, Palmate venation
Surfaces:
Glabrous
Colour in Fall:
Orange, Red
Shapes:
Orbicular
Apices:
Acute
Bases:
Hastate, Truncate
Margins:
Dentate, Double serrate, Pinnately lobed
Additional Info:
Spectacular fall colour
Inflorescence Type:
Umbel
Flower Morphology:
Flowers perfect
Number Of Petals:
5
Corolla Shape:
Rotate/stellate
Colour (petals):
Not showy, Pink, Red
Flower Time at Peak:
Apr
Additional Info:
Flowering rarely seen
Fruit Type:
Samara, Schizocarp, Aborted (hybrids) or absent
Fruit Colour:
Red, Brown
Fruiting Time:
May, Jun
Additional Info:
Fruit insignificant, Some cultivars are seedless while others form schizocarps thick margin of wings at 60-70 degree angle, split into samara-like mericarps after dispersal; seeds sterile
Bark Morphology:
Moderately fissured, Single stem trunk
Bark or Stem Colour:
Grey
Leaf Bud Type:
Ovoid
Leaf Scar Shape:
Crescent shaped
Pest Susceptibility:
Mites, Wilt
Course(s):
- not used (on campus)
Location(s):
- (BCE) Boulevard (Circular) Eastend : cv. Armstrong 18, 19, 20, 21, 22, 23
- (BGR) Boulevard by Glover Road : cv. Armstrong 293