Hoyt Arboretum, Portland, Oregon, USA
Hoyt Arboretum, Portland, Oregon, USA
Hoyt Arboretum, Portland, Oregon, USA
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Taxon
Quercus phellos
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Common name:
willow oak
Family:
Fagaceae
Distribution:
New York south to Florida, west to Missouri and Texas
Habitat:
Forest, occurring up to 400m
IUCN Red list:
Least concern
Hardiness:
Zone 5b -15 to -10 F
Life form:
Deciduous tree
Usage:
Ornamental shade tree
Comments:
Willow oak is a broadleaf deciduous tree, 50-60’, excurrent form, oblong oval crown, fairly open, descending branches, stems slender, reddish-brown to dark brown. Leaves alternate, simple, 5-13 cm long, narrow (0.8-2.5 cm wide), elliptical or lance-shaped (willow-like), wavy entire margin. Autumn color yellow or russet red to red. Small acorns, about 1.5 cm or less. A North American species in the red oak group.
Best grown in average, medium to wet, well-drained soils in full sun. Tolerates light shade. Prefers moist well-drained loams, but adapts to a wide range of soil conditions including clays with somewhat poor drainage. Generally tolerant of urban pollution.
Links:
OSU Landscape Plants - Quercus phellos
Locations
1:
1200 s, 1200 e
(ST 1200,1200)
• Accession: 1928-1802/1
2:
1200 s, 1200 e
(ST 1200,1200)
• Accession: 1928-1805/1
3:
1200 s, 1200 e
(ST 1200,1200)
• Accession: 1928-1806/1
4:
1200 s, 1200 e
(ST 1200,1200)
• Accession: 1928-1809/1
5:
1200 s, 1200 e
(ST 1200,1200)
• Accession: 1928-1810/1
6:
1200 s, 1200 e
(ST 1200,1200)
• Accession: 1928-1811/1
7:
1200 s, 1200 e
(ST 1200,1200)
• Accession: 1928-1812/1
8:
1400 s, 1200 e
(ST 1400,1200)
• Accession: 1971-004/1
9:
Herbarium
(HERB)
• Accession: 1928-1802
10:
Herbarium
(HERB)
• Accession: 1928-1806
11:
Herbarium
(HERB)
• Accession: 1971-004 (2)
Area
Individual