Phellodendron amurense - Amur Corktree
Family: Rutaceae

Hear the scientific name

Phellodendron amurense is a relatively tough, functional, low maintenance tree characterized by corky bark and interesting form. A male cultivar of the Amur Corktree is preferable in some situations as the fruit litter may be a nuisance.

F   E   A   T   U   R   E   S
  form Form

-deciduous tree

-broad spreading vase

-30-45' tall with equal spread

-open rounded crown delineated by a few large branches

-irregular when young, symmetrical at maturity

-moderate to rapid growth rate


foliage2 foliage Foliage


-odd pinnately compound

-10-15" long

-5-11 leaflets

-each leaflet ovate, becoming narrow at the tip

-entire margins

-transparently dotted (like chlorotic spots)

-autumn color is yellow


-dioecious (male and female plants)

-in panicles

-not showy

-May to June


-on female plants only

-black, 1/2' drupe, in clusters

-strong odor when bruised

-Oct., persistent into winter



-light to yellow gray, becoming brown

-lenticels white, apparent

trunk2 trunk Trunk

-bark gray

-deeply fissured, ridged, becoming corklike


C   U   L   T   U   R   E


-tolerates many types of soils, including compacted ones, but is not as urban tolerant as previously thought; especially with restricted root spaces

-tolerates drought

-pest- and disease-free

-relatively easily transplanted


-zones 4 to 7


-native to China, Japan

U   S   A   G   E


-good winter character (bark & form)


-tolerates adverse conditions except limited root space

-attracts wildlife (birds feeding on fruit)


-shallow root system

-fruits on female plants may be messy

-may seed itself into the landscape


-shade tree for large areas, parks, golf courses

-has been used as a street tree

-need space for broad spread


-medium texture in foliage and coarse when bare

-moderate density

S   E   L   E   C   T   I   0   N   S

Varieties and Cultivars - Search OSU PlantFacts for additional plants in this species


-other trees with showy bark (e.g., Ulmus parvifolia)

-vased-shaped trees (e.g., Zelkova serrata)


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