Scientific Name:
Koelreuteria paniculata
Pronunciation:
kole-roo-TEER-ee-uh puh-nick-you-LAY-tuh
Common Name:
golden rain tree
Family Name:
Sapindaceae
Plant Type:
Tree - deciduous
Key ID Features:
Leaves alternate, pinnately compound, most with 11 leaflets that are ovate, most 4-6cm long x 2.5-4cm wide; toothed and/ or lobed (some be be further divided into pinnae), leaf bases variable; florets with yellow and red petals in long panicles; capsules gradually turn from green to reddish to brown, papery, 3-4cm long. Winter ID: irregular branching pattern, globular buds on fuzzy brown twigs, persistent brown papery capsules.
Habit:
Open, Upright
Form:
Irregular, Round
Texture:
Coarse
Mature Height:
7 - 10m
Mature Spread:
7 - 10m
Origin:
S.E. Asia / Japan / China
Hardiness Rating:
Zone 6: (-23 to -18 °C)
Exposure:
Full sun
Soil/Growing Medium:
Humus rich, Well-drained
Landscape Uses:
Shade tree, Specimen plant
Additional Info:
Google. Cultivars shown may include K. Fastigiata.
Leaf Morphology:
Form:
Compound
Arrangement:
Alternate
Texture/Venation:
Soft flexible
Surfaces:
Glabrous
Compound Leaf:
Odd-pinnate
Colour in Summer:
Green, New spring leaves emerge pinkish bronze
Colour in Fall:
Yellow
Shapes:
Ovate
Apices:
Acute
Bases:
Attenuate, Cuneate, Obtuse
Margins:
Dentate, Pinnately lobed
Inflorescence Type:
Panicle
Flower Morphology:
Flowers perfect
Number Of Petals:
4
Corolla Shape:
Funnelform
Ovary Position:
Superior
Colour (petals):
Yellow
Flower Time at Peak:
Jul
Fruit Type:
Capsule
Fruit Colour:
Green, Dark-red, Brown
Fruiting Time:
Aug, Sep
Additional Info:
Showy, Persistent
Bark Morphology:
Moderately fissured, Single stem trunk
Bark or Stem Colour:
Dark Grey
Leaf Bud Type:
Rounded or globular
Leaf Scar Shape:
Heart shaped
Organ Modifications:
Storage tap root
Maintenance:
Low
Pest Susceptibility:
Dieback, Root rot, Wilt (Pest resistant, Disease resistant, Drought tolerant)
