Phellodendron amurense
Common name:
Amur Corktree
Pronunciation:
fel-o-DEN-dron a-moor-EN-se.
Family:
Rutaceae
Genus:
Type:
Broadleaf
Native to (or naturalized in) Oregon:
No
- Deciduous tree, 30-45 ft (9-14 m), short trunk, spreading, horizontal, stout stems. Bark on old trunks ridged and furrowed, gray-brown, with a cork-like pattern, especially in old age. Leaves opposite, 25-40 cm long, pinnate (odd), 5-11(13) leaflets, each 5-10 cm long, acuminate, margin entire, and lustrous dark green above. Yellow to bronze yellow in fall. Horseshoe leaf scar, petiole nearly encloses bud. Flowers dioecious - male and female flowers on different plants - appear in late spring, small, yellowish green, in wide clusters. Fruit yellowish, finally black, 10-15 mm diam., held into late fall, strong odor when crushed.
- Sun, wide spreading root system, does well on many soil types. Withstands drought and polluted air
- Caution: This species is considered invasive to forests, woodlands, and parks in some parts of the eastern U.S. Female trees produce abundant fruit/seeds, seeds are dispersed by birds and probably by water via streams and other drainages. It may be wise to plant only non-fruit producing male trees. See Phellodendron His Majesty™
- Hardy to USDA Zone (3)4 Native to northern China, Manchuria and Japan
- amurense: refers to the Amur River region in eastern Siberia
- Oregon State Univ. campus: male tree in front of Memorial Union, west side.
- Corvallis: female trees on Jefferson near 1st St. (across from Post Office).
Click image to enlarge
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plant habit
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plant habit, older tree
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leafy branch
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leaf and enclosed bud
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leaf, comparison
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flowering branches (male), summer
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male flower cluster and flowers
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immature fruit and leaflets
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female flowers
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leaves and fruit, summer
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plant habit, fall
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leaves and fruit, fall
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fruit and leaves, early winter
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trunk, bark
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winter twigs and buds
