Scientific Name:
Acer shirasawanum
'Aureum'
Pronunciation:
AY-sur shir-ah-sah-WAN-um
Common Name:
golden full moon maple
Family Name:
Sapindaceae
Plant Type:
Shrub - deciduous, Tree - deciduous
Key ID Features:
Leaves opposite, golden yellow, orbicular, most 5-9cm wide, 9-13 lobes with acuminate tips, fan-like, margins double serrate, petioles 5-7cm long; flowers in umbel-like clasters of 8-10; schizocarps 3-4cm wide, thick side of wings at 170-180 degree angle, samaras seem upside down compare to other maples and the thin wing margin is wavy. Winter ID: lateral buds curved inwards, conical, about 5mm long, red, partially surrounded by brown scale fringed with hairs.
Habit:
Twiggy, Upright
Form:
Round
Texture:
Medium - coarse
Mature Height:
5 - 7m
Mature Spread:
5 - 7m
Growth Rate:
Slow
Origin:
Garden origin (Japan)
Hardiness Rating:
Zone 5: (-29 to -23 °C)
Exposure:
Part sun/part shade, Filtered shade
Soil/Growing Medium:
Acidic, Well-drained
Water Use:
Moderate
Landscape Uses:
Accent plant, Fall interest, Group or mass planting, Small garden/space, Specimen plant, Woodland margin
Additional Info:
Leaf Morphology:
Form:
Simple, Lobed
Arrangement:
Opposite
Texture/Venation:
Soft flexible, Palmate venation
Surfaces:
Lustrous
Colour in Summer:
Yellow
Colour in Fall:
Red
Shapes:
Orbicular
Apices:
Acuminate
Bases:
Hastate
Margins:
Incised, Palmately lobed, Serrate
Additional Info:
Spectacular fall colour
Inflorescence Type:
Corymb
Flower Morphology:
Monoecious plant
Number Of Petals:
5
Corolla Shape:
Campanulate
Ovary Position:
Superior
Colour (petals):
White, Yellow, Purple, Red
Flower Scent:
None
Flower Time at Peak:
Apr, May
Fruit Type:
Samara, Schizocarp
Fruit Colour:
Red, Brown
Fruiting Time:
Jul, Aug, Sep, Oct
Additional Info:
Schizocarps split into samara-like mericarps after dispersal
Bark Morphology:
Lightly fissured, Multi-stem trunk
Bark or Stem Colour:
Grey
Leaf Bud Type:
Conical (long-pointed)
Leaf Scar Shape:
Crescent shaped
Organ Modifications:
Fibrous-like roots
Propagation:
Cuttings, Softwood cuttings, Grafting
Maintenance:
Low
Pest Susceptibility:
Aphids or adelgids, Caterpillar or cutworm, Galls, Heart rot, Mites, Root rot, Scale insects, Wilt
