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PlantFiles: Northern Pin Oak, Hill's Oak
Quercus ellipsoidalis

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Family: Fagaceae (fag-AY-see-ee) (Info)
Genus: Quercus (KWER-kus) (Info)
Species: ellipsoidalis (e-lip-soy-DAY-lis) (Info)

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4 members have or want this plant for trade.

Category:
Trees

Height:
over 40 ft. (12 m)

Spacing:
20-30 ft. (6-9 m)
30-40 ft. (9-12 m)
over 40 ft. (12 m)

Hardiness:
USDA Zone 3a: to -39.9 C (-40 F)
USDA Zone 3b: to -37.2 C (-35 F)
USDA Zone 4a: to -34.4 C (-30 F)
USDA Zone 4b: to -31.6 C (-25 F)
USDA Zone 5a: to -28.8 C (-20 F)
USDA Zone 5b: to -26.1 C (-15 F)
USDA Zone 6a: to -23.3 C (-10 F)
USDA Zone 6b: to -20.5 C (-5 F)

Sun Exposure:
Full Sun

Danger:
Unknown - Tell us

Bloom Color:
Brown/Bronze
Inconspicuous/none

Bloom Time:
Mid Spring
N/A

Foliage:
Grown for foliage
Deciduous

Other details:
Average Water Needs; Water regularly; do not overwater

Soil pH requirements:
5.1 to 5.5 (strongly acidic)
5.6 to 6.0 (acidic)
6.1 to 6.5 (mildly acidic)

Patent Information:
Non-patented

Propagation Methods:
Unknown - Tell us

Seed Collecting:
Unknown - Tell us

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Profile:

1 positive
No neutrals
No negatives

Gardeners' Notes:

RatingAuthorContent
Positive riversandbar On Dec 23, 2004, riversandbar from Inver Grove Heights, MN (Zone 4b) wrote:

The leaves of Northern Pin Oak (Quercus ellipsoidalis) can be distinguished from Northern Red Oak (Quercus rubra) by the deep sinuses and shiny surface of the former compared to the shallow sinuses and (often) dull surfaces of the latter. The leaves of Northern Pin Oak (Q. ellipsoidalis) are similar to those of Scarlet Oak (Q. coccinea), Pin Oak (Q. palustris) and Black Oak (Q. velutina). The first two are very rare in southern Wisconsin and Minnesota. Black Oak (Q. velutina) is more common, but is mostly southern also.

Northern Pin Oak (Quercus ellipsoidalis) is distributed primarily in the middle and western parts of the Great Lakes region -- from central Michigan east to noth-central Wisconsin, eastern Iowa, northern Illinois, and northern Indiana. Disjunct populations occur in northern Ohio, Arkansas, and extreme southeastern North Dakota.

Northern Pin Oak (Quercus ellipsoidalis) is an upland species that commonly grows on dry, acid, sandy soils with a thin organic layer. It most often occurs on sandy plains and sandstone hills, and develops into pure populations only on such sites (an edaphic climax). It is the most droughts tolerant of all black oaks. It occasionally grows on moderately mesic slopes or uplands in varying mixtures with White Oak (Q. alba), Black Oak (Q. velutina), Scarlet Oak (Q. coccinea), Bur Oak (Q. macrocarpa), and Northern Red Oak (Q. rubra).

Northern Pin Oak (Quercus ellipsoidalis) is very common in West-Central Wisconsin and the Twin Cities of Minnesota. It is more common than the Northern Red Oak (Q. rubra) in the eastern part of the Twin Cities.

Regional...

This plant has been said to grow in the following regions:

Marietta, Georgia
Hampton, Illinois
Andover, Kansas
Tecumseh, Michigan
Inver Grove Heights, Minnesota
Minneapolis, Minnesota
South Saint Paul, Minnesota
Bucyrus, Ohio
Greensburg, Pennsylvania
Elmwood, Wisconsin
Rhinelander, Wisconsin



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