Scientific Name:
Acer rubrum
'Bowhall'
Pronunciation:
AY-sur ROO-brum
Common Name:
Bowhall maple
Family Name:
Sapindaceae
Plant Type:
Tree - deciduous
Key ID Features:
Form narrow, oval; leaves opposite, mid-green with lighter undersides, blades obovate-orbicular, most 7-13cm wide, with 3 major acute-tipped lobes, margins serrate, bases truncate to cordate, petioles up to 20cm long; florets female, orangish-red, appear before the leaves; schizocarps red, 1.3-1.8cm wide, thick edge of wings at 90-100 degree angle when mature (narrower than Norway maple), samaras 1.5-2cm long. Winter ID: bark greyish twigs brownish, buds red, glabrous, terminal buds multiple, up 4mm long; lateral buds, opposite, oval, 2-3mm long.
Habit:
Fastigiate, Stiffly upright
Form:
Columnar, Oval - vertical
Texture:
Medium - coarse
Mature Height:
10 - 15m
Mature Spread:
4 - 5m
Growth Rate:
Moderate
Origin:
Canada - eastern, Garden origin, U.S. - northeast
Hardiness Rating:
Zone 3: (-40 to -34 °C)
Exposure:
Full sun, Part sun/part shade
Soil/Growing Medium:
Acidic
Water Use:
Low
Landscape Uses:
Accent plant, Fall interest, Shade tree, Specimen plant, Street (boulevard tree)
Additional Info:
Google. Compare to Norway maple, A. 'Columnare'.
Leaf Morphology:
Form:
Simple, Lobed
Arrangement:
Opposite
Texture/Venation:
Soft flexible, Heavily veined, Palmate venation
Surfaces:
Lustrous
Colour in Summer:
Dark-green
Colour in Fall:
Yellow, Orange, Red
Shapes:
Obovate, Orbicular
Apices:
Acuminate
Bases:
Cordate, Truncate
Margins:
Dentate, Pinnately lobed, Serrate
Additional Info:
Spectacular fall colour
Inflorescence Type:
Corymb
Flower Morphology:
Dioecious plant
Number Of Petals:
5
Corolla Shape:
Campanulate
Ovary Position:
Superior
Colour (petals):
Not showy, Red
Flower Scent:
None
Flower Time at Peak:
Mar, Apr
Additional Info:
THis is a Female cutlivar
Fruit Type:
Samara, Schizocarp
Fruit Colour:
Red
Fruiting Time:
May, Jun
Additional Info:
Not showy, Schizocarps split into samara-like mericarps after dispersal
Bark Morphology:
Lightly fissured, Single stem trunk
Bark or Stem Colour:
Grey
Leaf Bud Type:
Ovoid
Leaf Scar Shape:
Crescent shaped
Propagation:
Grafting
Maintenance:
Low
Pest Susceptibility:
Aphids or adelgids, Caterpillar or cutworm, Galls, Heart rot, Mites, Root rot, Scale insects, Wilt
Course(s):
- HORT 2355
Location(s):
- (BCW) Boulevard (Circular) Westend : 334, 335, 336, 337, 338, 339, 340, 341, 342, 344, 346, 347, 349, 350, 351, 352, 353, 354, 355, 356, 357, 358, 360, 361, 362
- (BGR) Boulevard by Glover Road
- (PPL) Pine PLanting : 285