Scientific Name:
Acer palmatum
'Koto No Ito'
Pronunciation:
AY-sur pal-MAY-tum
Common Name:
Koto No Ito maple
Family Name:
Sapindaceae
Plant Type:
Tree - deciduous
Key ID Features:
Leaves opposite, deeply dissected to petiole (appearing palmately compound) with 3 to 5, narrow, jagged-edged lobes (linear or lanceolate and reminiscent of cannabis), most 5-8cm long x 0.2-2cm wide; samaras persistent, red and green. Winter ID: lateral buds opposite, red, curved towards stem, surrounded by hairs, 2-4mm long.
Habit:
Dense, Spreading, Twiggy
Form:
Round
Texture:
Medium - fine
Mature Height:
3 - 5m
Mature Spread:
4 - 5m
Growth Rate:
Moderate
Origin:
Garden origin
Hardiness Rating:
Zone 6: (-23 to -18 °C)
Exposure:
Full sun only if soil kept moist, Part sun/part shade, Filtered shade
Soil/Growing Medium:
Acidic, Humus rich, Well-drained
Water Use:
Moderate
Landscape Uses:
Container planting, Fall interest, Mixed shrub border, Shade tree, Small garden/space, Specimen plant, Woodland margin
Additional Info:
Leaf Morphology:
Form:
Simple, Compound
Arrangement:
Opposite
Texture/Venation:
Soft flexible
Surfaces:
Glabrous
Compound Leaf:
Digitate (palmate)
Colour in Fall:
Yellow, Orange, Red
Shapes:
Lanceolate, Linear, Other
Apices:
Acuminate
Bases:
Cuneate, Truncate
Margins:
Double serrate, Palmately lobed
Additional Info:
Spectacular fall colour, Leaf dimorphism: lanceolate and narrowly linear "leaflets"
Inflorescence Type:
Cyme, Corymb-like
Flower Morphology:
Flowers perfect
Number Of Petals:
5
Corolla Shape:
Rotate/stellate
Ovary Position:
Superior
Colour (petals):
Not showy, Dark-red
Flower Scent:
None
Flower Time at Peak:
Apr
Fruit Type:
Samara, Schizocarp
Fruit Colour:
Green, Red, Brown
Fruiting Time:
Sep, Oct
Additional Info:
Showy, Persistent, Schizocarps split into samara-like mericarps after dispersal
Bark Morphology:
Lightly fissured
Bark or Stem Colour:
Grey, Brown
Leaf Bud Type:
Ovoid
Leaf Scar Shape:
Crescent shaped
Organ Modifications:
Fibrous-like roots
Propagation:
Seed, Cuttings, Grafting
Maintenance:
Low
Pest Susceptibility:
Aphids or adelgids, Fungal leaf spot, Heart rot, Leafhopper or spittlebug, Mites, Root rot, Scale insects, Wilt
Course(s):
- HORT 2355
Location(s):
- (HPZ) Horticulture PlaZa : 465
- (TFL) Turf Field Lab
- (TFLS) Turf Field Lab South