Northern Pin Oak, also called Hill's Oak or Jack Oak, is a medium-sized oak of the upper Midwest and Great Lakes region, growing on dry, sandy, and acidic soils. It is similar in appearance to Pin Oak but occupies drier upland sites rather than wet bottomlands, and its acorns are ellipsoidal with deeper cups. It is a characteristic tree of the oak barrens ecosystems of Wisconsin, Minnesota, and Michigan, where historically it was maintained by fire. Its acorns are consumed by deer, turkeys, and many birds.
Best time to see a Northern Pin Oak
The best time to see a Northern Pin Oak is May–September, when about 63% of U.S. sightings happen, based on 1,900 research-grade iNaturalist observations.
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